A roller coaster does a loop de loop at 35 m/s, with a radius of 32 meters. What is the
acceleration?

Answer:

not 100% sure what you were asking.

Explanation:

A reaction where the consequences of a reaction cause a succeeding like reaction is called a chain reaction.

Answer:

the period of the physical pendulum is 0.498 s

Explanation:

Given the data in the question;

[tex]T_{simple[/tex] = 0.61 s

we know that, the relationship between T and angular frequency is;

T = 2π/ω ---------- let this be equation 1

Also, the angular frequency of physical pendulum is;

ω = √(mgL / [tex]I[/tex] ) ------ let this equation 2

where m is mass of pendulum, L is distance between axis of rotation and the center of gravity of rod and [tex]I[/tex]  is moment of inertia of rod.

Now, moment of inertia of thin uniform rod D is;

[tex]I[/tex] = [tex]\frac{1}{3}[/tex]mD²

since we were not given the length of the rod but rather the period of the simple pendulum, lets combine this three equations.

we substitute equation 2 into equation 1

we have;

T = 2π/ω OR T = 2π/√(mgL/[tex]I[/tex]) OR T = 2π√([tex]I[/tex]/mgL)

so we can use [tex]I[/tex] = [tex]\frac{1}{3}[/tex]mD² for moment of inertia of the rod

Since center of gravity of the uniform rod lies at the center of rod

so that L =  [tex]\frac{1}{2}[/tex]D.

now, substituting these equations, the period becomes;

T = 2π/√([tex]I[/tex]/mgL) OR T = [tex]2\pi \sqrt{\frac{\frac{1}{3}mD^2 }{mg(\frac{1}{2})D } }[/tex] OR T = 2π√(2D/3g )  ----- equation 3

length of rod D is still unknown, so from equation 1 and 2 ( period of pendulum ),

we have;

ω[tex]_{simple[/tex] = 2π/[tex]T_{simple[/tex] OR  ω[tex]_{simple[/tex] = √(g/D) OR  ω[tex]_{simple[/tex] = 2π√( D/g )  

so we simple solve for D/g and insert into equation 3

so we have;

T = √(2/3) × [tex]T_{simple[/tex]

we substitute in value of [tex]T_{simple[/tex]

T = √(2/3) × 0.61 s

T = 0.498 s

Therefore, the period of the physical pendulum is 0.498 s

Answer:

Explanation:

There are countless household appliances in every single house. One appliance with a low power rating would be a ceiling fan. On average ceiling fans consume roughly 60w and are found in the majority of houses. On the other side of the spectrum, we have a high power-rating appliance such as a microwave. Microwaves use anywhere between 1000w to 1800w of power in order to function correctly. This is very large power consumption and one of the highest power ratings found for appliances in a household.

Answer:

450 since in series we add the resistance

Answer:

v = 0.375 m/s

Explanation:

Given that,

The wavelength of a wave is 0.75 m/cycle

The period of a wave is 2s/cycle

We need to find the speed of the wave. We know that,

[tex]v=\dfrac{d}{t}[/tex]

Substitute all the values,

[tex]v=\dfrac{0.75}{2}\\\\v=0.375\ m/s[/tex]

So, the speed of the wave is equal to 0.375 m/s.

Answer:

v = -227.785 m/s

Explanation:

The electric field exerts the following force on the electric particle:

F = qE

[tex]F = 6.65 \times 10^{-6} \times 1230[/tex]

[tex]F = 0.0081795 \ N[/tex]

The magnetic field exerts the following force on the particle::

F = qvB

[tex]F = 6.65\times 10^{-6} \times v \times 1.32[/tex]

[tex]F = 8.778 \times 10^{-6} \times v[/tex]

Total force acting is:

F = qvB + qE

[tex]6.18 \times 10^{-3} = 0.0081795 + 8.778 \times 10^{-6} \times v[/tex]

[tex]v = \dfrac{6.18 \times 10^{-3} -0.0081795 }{8.778 \times 10^{-6}}[/tex]

v = -227.785 m/s

Answer:

D

Explanation:

Answer:

The total volume of the air is 1000 cubic centimeters.

Explanation:

Since the bicycle pump and the bicycle tyre have the same pressure, then the total volume of the air is the sum of the volume of each element, then we translate this into the following artihmetical expression:

[tex]V = 200\,cm^{3}+800\,cm^{3}[/tex]

[tex]V = 1000\,cm^{3}[/tex]

The total volume of the air is 1000 cubic centimeters.

Answer:

d = 0.343 m

Explanation:

Given that,

The speed of a longitudinal wave, v = 343 m/s

Your ear is capable of differentiating sounds that arrive at the ear just 1.00 milliseconds apart.

We need to find the minimum distance between two speakers that produce sounds that arrive at noticeably different times.

Let the distance be d. So,

[tex]d=v\times t\\\\=343\times 10^{-3}\\\\=0.343\ m[/tex]

So, the required distance is equal to 0.343 m.

Answer:

Anywhere above 12000N in order to decelerate the train since F=mass*acceleration

Answer:

[tex]22.84\ \text{N}[/tex]

Explanation:

[tex]\rho[/tex] = Density = [tex]7800\ \text{kg/m}^3[/tex]

h = Length of rod = 95 cm

d = Diameter of rod = 2 cm

r = Radius = [tex]\dfrac{d}{2}=1\ \text{cm}[/tex]

g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]

V = Volume of rod = [tex]\pi r^2h[/tex]

Mass is given by

[tex]m=V\rho[/tex]

Weight is given by

[tex]w=mg=V\rho g\\\Rightarrow w=\pi r^2h\rho g\\\Rightarrow w=\pi\times (1\times 10^{-2})^2\times (95\times 10^{-2})\times 7800\times 9.81\\\Rightarrow w=22.84\ \text{N}[/tex]

The weight of the rod is [tex]22.84\ \text{N}[/tex].

Answer:

B.lenses bounce light from their surface, mirrors do not

Answer:

Mass

Object

Explanation:

Answer:

Mass is the amount of matter in an object and the mass of an object does not change location.

Answer:

Coming from my perspective sence I see the lines are super long during lunch I would have to say McDonald’s

Answer:

if gossipy egg overriding successors spatial

Answer:

13: (Im not sure sorry)

14: C

15: B

16: B

17: B

18: B

Answer;

gram

Explanation

Answer:

Superconducting materials can transport electrons with no resistance, and hence release no heat, sound, or other energy forms. Superconductivity occurs at a specific material's critical temperature (Tc). As temperature decreases, a superconducting material's resistance gradually decreases until it reaches critical temperature. At this point resistance drops off, often to zero, as shown in the graph at right.

Explanation:

Answer:

C. Remains of living things

Explanation:

They are made up of dead animals or plants. Coal, Oil, and Natural Gas are the three types of fossil fuels and all of them come from dead organisms. Even the name Fossil Fuels, sounds like a name for something like this.

Hope this Helps ʕ•ᴥ•ʔ

Answer:

C

Explanation:

took the test

when we placed in the container of real depth assuming = d

if the container filled with liquid A then its apparent depth d' = 7cm

so the refractive index nA = real depth / apparent depth

                                       = d/7cm = 0.1428d

if the container filled with liquid B then its apparent depth d' = 6cm

so the refractive index nB = real depth / apparent depth

                                       = d/6cm = 0.166d

if the container filled with liquid C then its apparent depth d' = 5cm

so the refractive index nC = real depth / apparent depth

                                       = d/5cm = 0.2d

Since the refractive index is inversely proportional to the apparent depth

then the refractive indices are nC > nB > nA

From the wording of the question, I'm suspecting that you have ...

... either a piece of equipment or else a computer program named "myDAQ",

... an inductor to play with and measure, either in your hand or on the screen.

I have none of these advantages.

In fact, nobody reading this on Brainly has.

It's like if I asked you to write an equation that can be solved to find the total amount of money in all five of my pockets right now.    

Answer:

can y

Explanation:

jj

The smallest particles that can be removed by these clarifiers have a diameter of 0.0257 mm, and the minimum width of a rectangular clarifier with a length-to-width ratio of 5:1 is 0.023 times the length.

The equation for the settling velocity of a particle:

V_s = (2/9) * (ρ_p - ρ_w) * g * r^2 / η

where V_s is the settling velocity, ρ_p is the particle density, ρ_w is the water density, g is the acceleration due to gravity, r is the particle radius, and η is the water viscosity.

1. We can rearrange the equation to solve for the particle radius:

r = [9ηV_s / (2(ρ_p - ρ_w)g)]^(1/2)

We want to find the particle diameter, which is twice the radius, so we can substitute 2r for d in the following equation:

d = 2r = 2[9ηV_s / (2(ρ_p - ρ_w)g)]^(1/2)

To remove the smallest particles, we want to use the smallest settling velocity possible, which corresponds to a particle just barely settling to the bottom of the clarifier. Therefore, we can set V_s equal to the minimum settling velocity required for particles to be removed:

V_s = Q / (A * X)

where Q is the flow rate (25 MGD), A is the surface area of one clarifier (πr^2), and X is the overflow rate, which is the flow rate per unit area of the clarifier. A typical overflow rate for a sedimentation basin is 600-1200 gallons per day per square foot (gpd/ft^2), or 2.5-5 m^3/day/m^2. We will use the lower end of this range, 2.5 m^3/day/m^2.

Substituting in the values for Q, A, and X, we get:

V_s = (25 MGD) / (π(8 m)^2 * 2.5 m^3/day/m^2) = 0.00159 m/s

Now we can substitute the values for η, ρ_p, ρ_w, g, and V_s into the equation for the particle diameter:

d = 2[9(1 g/(m*s))(0.00159 m/s) / (2(1200 kg/m^3 - 998.2 kg/m^3)(9.81 m/s^2))]^(1/2) = 0.0257 mm

So, the smallest particles that can be removed by these clarifiers have a diameter of approximately 0.0257 mm.

2. To find the minimum width of a rectangular clarifier with a length-to-width ratio of 5:1, we can use the same overflow rate and flow rate as before, and we can assume a depth of 3 m. The surface area of one clarifier must still be the same as before, so we can use the equation for the surface area of a rectangle:

A = L * W

where L is the length and W is the width.

Substituting in the values for Q, X, and A, we get:

W = (25 MGD) / (5 * 24 hr/day * 60 min/hr * 60 s/min * 2.5 m^3/day/m^2 * 5 * L)

Simplifying, we get:

W = 0.023 L

So, the minimum width of a rectangular clarifier with a length-to-width ratio of 5:1 is 0.023 times the length.

Therefore, The smallest particles that can be removed by these clarifiers have a diameter of 0.0257 mm, and a rectangular clarifier's minimum width is 0.023 times the length when the length-to-width ratio is 5:1.

To learn more about the work energy theorem click:

https://brainly.com/question/29861164

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Answer:

Explanation:

The IV is the dose given and the DV is the intensity and frequency of symptoms. The intensity and frequency of symptoms “depends” on the dose of drug given. Example 4: You are studying how tutoring affects SAT scores. Your independent variable(IV) is tutoring and the dependent variable(DV) is test scores.

Answer: Anomalous Expansion of water & its effects When water is heated from 00C to 40C it contracts continously instead of expanding. Conversely expands when cooled down from 40C to 00C . This expansion of water from 40C to 00C is called anomalous expansion. When heated from 40C to 1000C its expansion is normal like the expansion of other liquids. Since water contracts when heated from 00C to 40C and expands from 40C to 1000C , its volume is smallest and the density is maximum at 40C. Hence water is heaviest at 40C.

Answer:

Hello There!!

Explanation:

The answer is=>C. It changes the activation energy required for the reaction.

hope this helps,have a great day!!

~Pinky~

The true statement for a catalyst used in a reaction is that it makes a reaction faster by adding energy. The correct option is D.

A catalyst is a substance that increases the chemical reaction rate without undergoing any permanent chemical change in itself. It makes the reaction faster.

The correct option is D.

Learn more about catalyst.

https://brainly.com/question/12260131

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Answer:

The correct answers are as follows:

1. RADIONUCLIDES.

Radionuclides refers to an atom, which has excess energy that makes it to be unstable. The excess energy can be emitted inform of gamma rays, beta particles or alpha particles. These emissions are ionizing radiations which are used in various ways.

2. TRACER.

In nuclear medicine, a tracer refers to a chemical compound that can be used to explore the chemical reaction mechanisms by tracing the path of the chemical reaction. radioactive tracers are usually injected into the blood stream and use to monitor the biochemical reactions taking place in the body.

3. RADIOPHARMACEUTICALS.

Radiopharmaceuticals refers to a group of pharmaceutical drugs which are radioactive in nature. It is usually made up of a radioactive substance and an organic molecule. They are usually given to patients and monitored through imaging equipment for diagnosis or therapeutic purposes.

4. IONIZING RADIATION.

Ionizing radiations refers to those radiations that have the sufficient energy capacity  to cause ionization in the medium they pass through. Ionization involves removing an electron from another atom. Ionizing radiations can cause damages to human tissues.

5. DOSAGE.

Ionizing radiation dosage refers to the amount of ionizing radiation that is applied to a particular part of the body. Radiation dose is measured in different ways, which include: absorbed dose, equivalent dose and effective dose. The amount of ionizing dosage given to human should always be considered in order to avoid damage to body tissues.

Explanation:

Answer:#1:radionuclides

#2:tracer

#3:radiopharmaceutical

#4:ionizing radiation

#5:dosage

Explanation:

Answer:

Here ya gooooooooooooooo

Explanation:

sefamchsgaevfdkahsgevfjahgswevfjahsgefvjashgvf

Answer:

vf = 9.48 m/s

Explanation:

From the law of conservation of energy we can write:

[tex]Kinetic\ Energy\ Lost = Work\ Against\ Friction\\\frac{1}{2}m(v_i^2 - v_f^2) = fd\\\frac{1}{2}m(v_i^2 - v_f^2) = (\mu W)d\\\frac{1}{2}m(v_i^2 - v_f^2) = (\mu mg)d\\\frac{1}{2}(v_i^2 - v_f^2) = \mu gd\\v_f^2 = v_i^2 - 2\mu gd[/tex]

where,

vf = final speed = ?

vi = initial speed = 10.1 m/s

μ = coefficient of friction = 0.3

g = acceleration due to gravity = 9.81 m/s²

d = distance covered = 2.07 m

Therefore,

[tex]v_f^2 = (10.1\ m/s)^2 - 2(0.3)(9.81\ m/s^2)(2.07\ m)\\v_f^2 = 102.01\ m^2/s^2 - 12.18\ m^2/s^2\\v_f = \sqrt{89.83\ m^2/s^2}\\[/tex]

vf = 9.48 m/s