See The Picture And Anwser

See The Picture And Anwser

Answers

Answer 1

Answer:

[tex]from \: first \: equation \: of \: motion \\ v = u + at \\ a = \frac{v - u}{t} \\ a = \frac{15 - 24}{12} \\ a = - 0.75 \: {ms}^{ - 2} [/tex]

Answer 2

Answer:

a = -0.75 m/s^-2


Related Questions

Which of the following is NOT a level of home monitoring?
a. curfew
b. home incarceration
c. home detention
d. electronic monitoring

Answers

Answer:

d. electronic monitoring

Explanation:

Home monitoring in its simplest term is the act of restricting the movement of an entity, object or an individual to a specified location, usually their homes.

In criminology, there are various levels of home monitoring. Some of them are;

i. Curfew: This type of home monitoring requires that the persons being monitored be indoors/at home at specified hours.

ii. Home incarceration: This level of home monitoring requires that the persons being monitored be indoors/at home at all times except in times of medical urgencies.

iii. Home detention: This seems to be one of the less strict forms of home monitoring. It requires that the persons being monitored be indoors/at home at all times except when necessary. For example, they could go to school, their workplace, to the market and so on.

Electronic monitoring is not a form of home monitoring as it allows the person being monitored to move freely. They might just contacted via telephone or any other means, at intervals to know their whereabouts.

Why unit of pascal is called derived unit?​

Answers

Answer:

This is because it is derived from newtons and metres as shown in the expression;

Explanation:

[tex]pressure = \frac{force}{area} \\ P= \frac{F}{A} \\ P= \frac{newtons}{ {m}^{2} } \\ = pascals[/tex]

Answer:

Unit of pascal is called derived unit because it involves three fundamental units i.e.meter,kg,and second.

Explanation:

formula of pascal=kg/m/s^2

A traveler at Newark airport pulls his 294N suitcase with constant velocity to the check-in counter applying a force of 159N at an angle of 37 degrees with the horizontal. Calculate the Normal force, frictional force and the coefficient of friction between the suitcase and the airport floor.

Answers

Answer:

N = 198.3 N,  fr = 126.98 N and    μ = 0.64

Explanation:

For this exercise we must use the translational equilibrium condition.

Let's set a reference system with the x-axis horizontally and the y-axis vertical. Let's use trigonometry to decompose the applied force

      cos θ = Fₓ / F

      sin θ = F_y / F

      Fₓ = F cos θ

      F_y = F sin θ

      Fₓ = 159 cos 37 = 126.98 N

      F_y = 159 sin 37 = 95.69 N

Y axis  

    N + F_y - W = 0

    N = W - F_y

    N = 294 - 95.69

    N = 198.3 N

X axis

    Fₓ -fr = 0

     Fₓ = fr

     fr = 126.98 N

the expression for the friction force is

       fr = μ N

       μ = fr / N

       μ = 126.98 / 198.3

       μ = 0.64

A wide receiver catches the football that has 108 J of energy (work). How much force did his hands apply if he stopped it over a distance of 0.32m

Answers

Answer: [tex]337.5\ N[/tex]

Explanation:

Given

Energy associated with football is [tex]E=108\ J[/tex]

The receiver takes 0.32 m to stop the ball

Suppose F is the force applied

[tex]\therefore W=F\cdot d\\\text{Insert the values}\\\\\Rightarrow 108=F\times 0.32\\\\\Rightarrow F=\dfrac{108}{0.32}\\\\\Rightarrow F=337.5\ N[/tex]

Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

Answers

It will creat a static charge because rubbing the balloons together creates static electricity

Mercury -197 is used for kidney scans and has a half-life of 3 days. If the amount of mercury-197 needed for a
study is 1.0 gram and the time allowed for shipment is 15 days, how much mercury-197 will need to be ordered?

Answers

Answer:

32 g

Explanation:

Applying,

R = (R')2ᵃ/ⁿ............... Equation 1

Where R = Amount of mercury-197 needed to be ordered, R' = amount of mercury-197 needed for the study, a = time allowed for shipment, n = half life.

From the question,

Given: R' = 1 g, a = 15 days, n = 3 days

Substitute these values into equation 1

R = 1(2¹⁵/³)

R = 1(2⁵)

R = 32 g

A ray of light passes from air into cubic zirconia at an angle of 56.0° to the normal. The angle of
refraction is 22.00°.
What is the index of refraction of cubic zirconia?

Answers

Answer:

η = 2.2

Explanation:

The index of refraction is given by the following formula:

[tex]\eta = \frac{Sin\ \theta_i}{Sin\ \theta r}[/tex]

where,

η = index of refraction of cubic zirconia = ?

[tex]\theta_i[/tex] = angle of incidence = 56°

[tex]\theta_r[/tex] = angle of refraction = 22°

Therefore,

[tex]\eta = \frac{Sin\ 56^o}{Sin\ 22^o}\\\\\eta = \frac{0.829}{0.375}[/tex]

η = 2.2

Presiunea exercitata de o forta de F=700 N pe o suprafata cu aria de 2 metri patrati este de...?

Answers

Answer:

Presiune = 350 N/m²

Explanation:

Având în vedere următoarele date;

Forța = 700 N

Suprafață = 2 m²

Pentru a găsi presiunea;

Matematic, presiunea este dată de formulă;

Presiune = forță/zonă

Înlocuind în formulă, avem;

Presiune = 700/2

Presiune = 350 N/m²

PLZ HELP, DUE TODAYYY!!!!!!​

Answers

Answer:

Explanation:

a. the sound energy is converted into electrical signals using diaphragm present in the microphone and these signals then reach to the speakers and then convert- ed back to sound. The electrical current generated by a micro- phone is very small and referred to as MIC-level; this signal is typically measured in millivolts.

b. Thermodynamics

A submarine is at an ocean depth of 3.00 km.
(a) Calculate the absolute pressure at this depth. Assume that the density of water is 1.025 ✕ 103 kg/m3 and that atmospheric pressure is 1.01 ✕ 105 Pa.
Pa
(b) Calculate the total force exerted at this depth on a circular submarine window with a diameter of 35.0 cm.
N

Answers

Answer:

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Explanation:

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bifjibjtgitkriwgi eror iurh oryi ehiwyrfoerhfoefoeuis in het begin van een tui ueen uitgebreide beschrijving ygt grup u een uitgebreide keuze u guugu

sjksjsosjsnshf ruor uw eigen website aanmaken r y fav u can u to uf the owner u will tu tutururu ba sa inyo ay walang naging y rin h results ry from y yifuirfjofjkrjirhieifr Fu t I

Electrons are accelerated in the picture tube of a television through potential difference of 8.00 * 10 ^ 3 V. (Use the values q e =1.60*10^ -19 kg and m e =9.109*10^ -31 kg.)

Please please helpppp?

Answers

Answer:

[tex]\lambda=1.37\times 10^{-11}\ m[/tex]

Explanation:

Give that,

The potential difference of the electrons, [tex]V=8\times 10^{3}\ V[/tex]

We need to find the wavelength of the electrons.

Using the conservation of energy,

[tex]2meV=\dfrac{h^2}{\lambda^2}\\\\\lambda=\sqrt{\dfrac{h^2}{2meV}}[/tex]

Put all the values,

[tex]\lambda=\sqrt{\dfrac{(6.63\times 10^{-34})^2}{2\times 9.1\times 10^{-31}\times 1.6\times 10^{-19}\times 8\times 10^3}}\\\\\lambda=1.37\times 10^{-11}\ m[/tex]

So, the wavelength of the electrons is [tex]1.37\times 10^{-11}\ m[/tex].

A projectile is launched from the ground with an initial velocity of 12m/s at an angle of 30° above the horizontal. The projectile lands on a hill 7.5m away. The height at which the projectile lands is most nearly

Answers

Answer:

[tex]1.78\:\mathrm{m}[/tex]

Explanation:

Kinematics equations used:

[tex]v_f=v_i+at,\\\\\Delta y = v_it+\frac{1}{2}at^2,\\\\v_f^2=v_i^2+2a\Delta x[/tex]

Other equations used:

[tex]\Delta x =v_i\cdot t,\\\text{-basic trigonometry for right triangles},\\\text{-application of physics concepts}[/tex]

By finding the horizontal component of the projectile's initial launch, we can find how long it will take for the projectile to reach the hill.

Since the projectile is launched at 12 m/s 30 degrees above the horizontal, we can use basic trig for a right triangle to find the horizontal component of the launch:

[tex]\cos 30^{\circ}=\frac{x}{12},\\x=12\cos 30^{\circ}\approx 10.3923048454\:\text{m/s}[/tex]

Now we can use [tex]\Delta x =v_x\cdot t[/tex] to find the time it will take to reach the hill:

[tex]7.5=10.3923048454\cdot t,\\t=\frac{7.5}{10.3923048454}\approx 0.72168783648\:\text{s}[/tex]

To find the total flight time the projectile would take if it were to land back to the same height it started out with, we can use the following kinematics equation:

[tex]v_f=v_i+at[/tex]

We'll use basic trig for a right triangle again to find the vertical component of the velocity at launch:

[tex]\sin 30^{\circ}=\frac{y}{12},\\y=12\sin 30^{\circ}=6\:\text{m/s}[/tex]. (recall [tex]\sin 30^{\circ}=\frac{1}{2}[/tex])

Now plugging this value in:

*Note: the projectile will hit the ground with a vertical velocity equal in magnitude but opposite in direction than the projectile's initial vertical velocity at launch

[tex]-6=6+(-9.8\cdot t),\\t=\frac{-12}{-9.8},\\t=1.22448979592\:\text{s}[/tex]

^This is the total flight time the projectile would take if it were to land back to the same height it started with. Since acceleration is constant, we can divide this time by two to find the time it would take to reach maximum height.

[tex]1.22448979592\div 2=0.61224489795\:\text{s}[/tex]

Thus, it will take [tex]0.61224489795\:\text{s}[/tex] to reach maximum height, meaning that it will take [tex]0.72168783648 - 0.61224489795=0.10944293853\:\text{s}[/tex] to land on the hill after reaching maximum height. Now that we've found this, we can use the following kinematics equation to find the vertical displacement from the projectile's max height to the hill:

[tex]\Delta y =v_it+\frac{1}{2}at^2[/tex]

At maximum height, the projectile's vertical velocity will be zero. Therefore, [tex]v_i=0[/tex] and we have:

[tex]\Delta y =\frac{1}{2}at^2[/tex]

Plugging in values , we have:

[tex]\Delta y =\frac{1}{2}\cdot 9.8\cdot 0.10944293853^2=0.05869100829\:\text{m}[/tex]

This means that the hill is [tex]0.05869100829\:\text{m}[/tex] lower than the max. height the object will reach.

To find the height of the hill from the ground, we will use the following kinematics equation:

[tex]v_f^2=v_i^2+2a\Delta x,\\-6^2=0+2\cdot-9.8\cdot\Delta x,\\36=-19.6\Delta x,\\\Delta x =\frac{36}{-19.6},\\\Delta x =-1.83673469388\:\text{m}[/tex]

Therefore, the max. height that the object will reach is [tex]1.83673469388\:\text{meters}[/tex].

Thus, the hill's height is [tex]1.83673469388-0.05869100829=1.77804368559\:\text{m}\approx\boxed{1.78\:\mathrm{m}}[/tex].

state and explain any effect on sensitivity of liquid in a glass thermometer (i) reducing the diameter of capillary tube​

Answers

Answer:

please give me brainlist and follow

Explanation:

The measuring sensitivity of liquid-in-glass thermometers increases with the amount of liquid in the thermometer. The more liquid there is, the more liquid will expand and rise in the glass tube. For this reason, liquid thermometers have a reservoir to increase the amount of liquid in the thermometer.

How do we calculate efficiency?

Answers

Explanation:

Efficiency is often measured as the ratio of useful output to total input, which can be expressed with the mathematical formula r=P/C, where P is the amount of useful output ("product") produced per the amount C ("cost") of resources consumed.

i dont know what the answer really is but this is what i think

What is the most common source of pollution?
gas
nuclear
coal
oil

Answers

Answer:

oil

Explanation:

Hope I helped! Brainiest plz! Hope you make an 100% and have a wonderful day! -Amelia♥

Answer:

Gas

Explanation:

Hope this helps!


Calculate the critical angle for Zircon which has a refractive index of n = 2*

Answers

Answer:

Given that refractive index of the material is √2. i.e. n = √2. Hence, critical angle for the material is 45°

PLEASE HELP!! I’ll give brainliest pls

Answers

Answer:

A

Explanation:

houses use alternating current source

Which conclusions about alcohol and teen driving are supported by the data provided? Check all that apply. Rates of drinking and driving increased significantly between 2004 and 2014. Approximately 22 percent of teens admitted to driving after drinking in 2004. Fewer teens admitted to drinking and driving in 2013 than in 2004. In 2013, about one in five teens admitted to riding with a driver who had been drinking.

Answers

Answer: • Fewer teens admitted to drinking and driving in 2013 than in 2004.

• In 2013, about one in five teens admitted to riding with a driver who had been drinking.

Explanation:

The conclusions about alcohol and teen driving that are supported by the data provided will be:

• Fewer teens admitted to drinking and driving in 2013 than in 2004.

• In 2013, about one in five teens admitted to riding with a driver who had been drinking.

Other options are incorrect as the conclusion wasn't gotten from the data that was orovufed

Answer:

Fewer teens admitted to drinking and driving in 2013 than in 2004.

In 2013, about one in five teens admitted to riding with a driver who had been drinking.

Explanation:

An object is 15.0 cm from a convex lens. Its image is 12.0 cm from the lens on the other side. What is the focal length of the lens?

Question 22 options:

1.25 cm


8.6 cm


6.67 cm


27.0 cm

Answers

Answer:

6.67

Explanation:

heyy! i’ll give brainliest please help

Answers

Answer:

5N towards north

Explanation:

Answer:

I think the answer is B

hope this helps

have a good day :)

Explanation:

Ganymede, the largest of Jupiter’s moons,
is also the largest satellite in the solar system. Find the acceleration of
gravity on Ganymede if a simple pendulum with a length of 1.00 m has a period
of 10.5 s

Answers

Answer:hereeee for pointssss only

Explanation:

The acceleration of gravity on Ganymede will be [tex]g=0.35\ \frac{m}{s^2}[/tex]

What will be the acceleration of gravity on Ganymede?

It is given that for a simple pendulum on Ganymede

Lenth= 1.00 m

the time period  T= 10.5 sec

The formula for a time period of simple pendulum will be

[tex]T=2\pi\sqrt{\dfrac{l}{g} }[/tex]

By rearranging the formula

[tex]g=l\times (\dfrac{2\pi}{T} )^2[/tex]

[tex]g=1\times (\dfrac{2\pi}{10.5} )^2=0.3577\frac{m}{s^2}[/tex]

[tex]g=0.3577\ \frac{m}{s^2}[/tex]

Thus the acceleration of gravity on Ganymede will be [tex]g=0.35\ \frac{m}{s^2}[/tex]

To know more about simple pendulums follow

https://brainly.com/question/26449711

When do the heavier elements finally form? Give a few example.

Answers

Answer:

Some of the universe's heavier elements are created by neutron star collisions. ... Light elements like hydrogen and helium formed during the big bang, and those up to iron are made by fusion in the cores of stars. Some heavier elements like gallium and bromine need something more, such as a supernova.

Explanation:

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Question 3.Two forces are acting on a 30-kg object, 200 N up and 300 N

down. What is the magnitude and direction of its acceleration?

A. It is 100 m/s2 upward,

B. It is 100 m/s2 downward.

C. It is 3 m/s2 upward.

D. It is 3 m/s2 downward.

Answers

Answer:

It is 3 m/s² downward.

Explanation:

The mass of an object, m = 30 kg

Upward force, F = 200 N

Downward force, F' = -300 N

We need to find the magnitude and direction of its acceleration.

Net force = F+F'

= 200+(-300)

= -100 N

We know that,

Force, F = ma, a is acceleration of the object

[tex]a=\dfrac{F}{m}\\\\a=\dfrac{-100}{30}\\\\a=-3.33\ m/s^2\approx -3\ m/s^2[/tex]

Hence, the acceleration is -3 m/s² and it is acting in the downward direction.

A cart moving at 4.0 m/s has 44 J of kinetic energy. What is the cart's mass?

Answers

[tex]ke = \frac{1}{2} m {v}^{2} [/tex]

[tex]44 = \frac{m {4}^{2} }{2} \\ \frac{88}{16} = m \\ 5.5 = m[/tex]

Major storms get their energy from WATER VAPOR in the air. Which step of the water cycle would give energy to a storm



please no links or files answer ASAP please

Answers

Evaporation is the process of water being evaporated and rising. This water vapor condenses at a certain point and mixes with aerosols to create a cloud.

Which of these statements describes protons and electrons?

Answers

The correct option is: "none of these statements is true".

To find out the correct option among all the options, we need to know more about the electron and proton.

What is electron?Electron is the fundamental particle of an atom.It is negatively charged.It is also a quantum particle. So, it can't stay at a place according to uncertainty principle i.e. it can move.  What is proton?Proton is a fundamental particle of an atom present inside the nucleus.It's positively charged.It can move.

Thus, we can conclude that the option (e) is correct.

Learn more about electron and proton here:

https://brainly.com/question/894705

#SPJ2

Ok so I am taking a test I need help please

Answers

Answer:

i know its definetly either clockwise or counter clockwise

Explanation:

Which two parts do the capillaries surround?

A. small intestines and heart

B. heart and lungs

C. alveoli and small intestines​

Answers

Answer:

do we have to choose 2 answers here?

Answer:

most probably it's C

Explanation:

alveoli is surrounded by capillaries and whit that option small intestines is also there

The different between capactance wnd capacitor

Answers

Answer:

The parallel plate capacitor is the simplest form of capacitor. ... The property of a capacitor to store charge on its plates in the form of an electrostatic field is called the Capacitance of the capacitor. Not only that, but capacitance is also the property of a capacitor which resists the change of voltage across it.

Explanation:

credits :- adultsscience

Explanation:

Capacitance exists wherever conductive material is separated by insulating material. 

Capacitive structures have the ability to store energy as an electric field;

when a capacitive structure has been designed as an electrical component that has a specified amount of capacitance, it is called a capacitor.

Capacitance symbol is C

you can get a meter for Capacitance

Capacitance formula is C = ε(A/d) where ε represents the absolute permittivity of the dielectric material being used.

simple piece of wire has very low capacitance

[tex] \underline{ \text{QUESTIONS}} : [/tex]
1. Write any three applications of electromagnetic waves. Complete the given ray diagram [ See the attached picture ]

2. The power of a bulb of car is 100 W. If 5A current flows through the filament of the bulb , calculate the voltage of the battery used in the car [ Ans : 20 V ] Please show your workings!

~Random/Irrelevant answers will be reported! ​

Answers

Answer:

Solution given:

any three applications of electromagnetic waves are:

Used for cooking purpose in microwave.Used in RADAR system for aircraft navigation.Used in communication.

2.

Solution given;

power [P]=100W

Current [I]=5A.

Voltage [V]=?

we have

P=IV

100=5*V

V=[tex] \frac{100}{5} [/tex]=20V

the voltage of the battery used in the car is 20V.

Answer:

Explanation:

1. Electromagnetic waves are used to broadcast radio and TV signals. It is also used for wireless charging cell phones. Cell phone itself uses electromagnetic waves for its cell signal.

See attached drawing for ray diagram.

2. Given: the power of a bulb of car is 100 W and 5A current flows through the filament of the bulb.

Power of a bulb is given by voltage * current.

So 100W = voltage * 5A

Voltage = 100/5 = 20V

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Why are advertising companies helpful? in which reaction is there a transformation of mass into energy ANSWER BOTH!!!A. An item is regularly priced at $65. Bill bought it at a discount of 20% off the regular price. How much did Bill pay? B. The wholesale price for a pillow is $4.50. A certain department store marks up the wholesale price by 40%. Find the price of the pillow in the department store.Round your answer to the nearest cent, as necessary. find the common difference of the arithmetic sequence 3, -2, -7 need help please to pass a $2500 bond earns 3% interest per year, compounded annuallya) write a function, V, that models the value of the bond t years after it is purchased.b)find the value of the bond after each of the first five years need help failing math What is the image of (4,-7) after a dilation by a scale factor of 2 centered at the origin? find the value of sin30+tan^(2)60+sec^(2)45 If ABCDE is reflected across the line y=-1, then reflected again across theyaxis, what are the new coordinates of point B?E.Bo*CO A. (-4,-2)O B. (-4,-4)O C. (6,2)OD. (-6,-2) the number line shows where 57 is located. which statement best explains why 57 rounded to the nearest ten is 60? Man-made ozone at Earth's surface, bluish in color, and can cause breathing difficulty iswhat form of ozone? Hello people of brainly is have a task for you that requires reading 2 short stories if you want to help me pls comment and I will post the stories for you to read ty True or false: a polygon must have at least two sides. Two fair number cubes are rolled. The table below shows the possible outcomes for each number cube and their sum.+ 1 2 3 4 5 61 2 3 4 5 6 72 3 4 5 6 7 83 4 5 6 7 8 94 5 6 7 8 9 105 6 7 8 9 10 116 7 8 9 10 11 12What is the theoretical probability of rolling two numbers with a sum less than 6? a.Peter does it very well.(into yes/ no question)b.Make it quickly.(into passive voice)c.Gita said to him ;"What did you eat for your dinner last night?" (indirect speech) please help with these questions and show how u found them i will mark you brainliest 0 Effects of oil discharged into the ocean Find the length of chord AB. Assume the graph is scaled by ones. Give exact andapproximate answers. Round to the nearest hundredth.O sqrt(34); 5.83 unitsO sqrt(24): 4.90 unitsO sqrt(26): 5.10 unitsO sqrt(10): 3.16 units Why does Grete want to move the furniture out of Gregor's room?a.She wants to inherit his furnitureb.To help Gregor forget that he used to be human.c.To coax Gregor out of his room.d.To give him more room to crawl around. See attached photo, calc ab, please show work too!