Method
1. Place a trolley on a smooth runway and tilt the runway very slightly so that the
slope compensate for the friction between the wheels and the runway. If
pushed gently, the trolley should move at a constant velocity.
2. Measure the mass of the trolleys.
3. Attach the ticker timer to the trolley and thread the tape through the ticker
timer.
4. Attach a smooth pulley vertically to the bottom of the runway.

Answers

Answer 1

Answer:

3

Explanation:

it's too because on you measuring mass of something


Related Questions

Which of Mendel principles would apply to mating two organisms that have two different alleles for three different traits

Answers

Answer:

Law of independent assortment

Explanation:

This is because law of independent assortment state that alleles of two or more genes when two organisms mate will be inherited or pass down to gametes which are in one way or the other independent of each other or each of the alleles. Therefore parent can have up to three different traits and the alleles can be inherited by the gametes.

Answer:

three different traits

Explanation:

just because it is.

PLEASE HELP ME WITH THIS ONE QUESTION
If a sound wave has a wavelength of 0.790 meters, and is travelling at a speed of 355 m/s, what is the period of oscillation for this wave?

Answers

Wavelength=velocity/frequency
Time a.k.a period = 1/frequency

Step 1: solve for frequency using the first equation
0.79m = 355/frequency
Frequency=280.45 Hz

Step 2: solve the period using the second equation

1/280.45 = 0.00357=3.57*10^-3 seconds

Two cars approach each other from opposite directions each
with a velocity of 54 km/h. One of the cars emits a note of frequency 480 Hz. What will be the approximate frequency
heard in the other car before they cross each other?

Answers

Answer:524 Hz

Explanation:

Approximate frequency, heard in other car, when two car approaches each other, before they cross each other is 524 Hz.

What is frequency?

Frequency of wave is the number of waves, which is passed thorough a particular point at a unit time.

For the two cars approaching each other the Doppler formula to find the frequency of second car is given as,

[tex]f_2=\dfrac{V_s+V_2}{V_s-V_1}f_1[/tex]

Here, [tex]V_s[/tex] is the speed of the sound.

Two cars approach each other from opposite directions.The velocity of car one is 54 km/h and the velocity of the car two is also 54 km/h.

Convert the unit of velocity of the car as,

[tex]\rm 54km/s=54\times\dfrac{5}{18}m/s\\\rm 54km/s=15m/s[/tex]

As we know that the speed of the sound is 340 m/s and one of the cars emits a note of frequency 480 Hz.

Thus, putting the values in the above formula to find out the frequency heard in the other car before they cross each other as,

[tex]f_2=\dfrac{340+15}{340-15}480\\f_2=524.3\rm Hz[/tex]


The approximate frequency heard in the other car before they cross each other is 524 Hz.

Learn more about the frequency here;

https://brainly.com/question/1436295

pick the correct answer there are three correct answers

Answers

A, and D are two correct answers im not sure about the third sorry

32. Which statement best describes the difference between strong nuclear forces and weak nuclear forces? (2 points)
• Weak nuclear forces are involved when certain types of atoms break down. Strong nuclear forces are
responsible for holding atoms' nucleus together.
• Weak nuclear forces hold bonds between atoms together. Strong nuclear forces hold together the nucleus of an atom.
• Strong nuclear bonds prevent atoms from falling apart. Weak nuclear bonds prevent compounds from falling apart.
• Strong nuclear forces are involved in breaking electrons from their shells. Weak nuclear forces hold protons in the nucleus. in

Answers

Answer:

The strong force. ... Specific kinds of bosons are responsible for the weak force, ... In the weak force, the bosons are charged particles called W and Z bosons.

Explanation:

hope it helps please mark me as a brainliest please

Answer:

Strong nuclear forces are involved in breaking electrons from their shells. Weak nuclear forces hold protons in the nucleus. in

Explanation:

sana maka help if Mali sowwy.

15. If a dog pulls a 5 kg sled with a force of 70 N, what is its acceleration?

Answers

Answer:

14 m/s^2

Explanation:

We have to use the equation F=ma because the question is a Newton's second law question.

First, list known values

F (force) = 70 N

m (mass) = 5 kg

a (acceleration) = ? (we have to solve for this)

Second, plug in known values into equation.

F=ma

70=5a

Third, solve. To solve this all you have to do is divide both sides by 5

70/5=5/5a

Fourth, your answer will be 14 meters per second squared  (m/s^2)

I hope this answer helps and have a great day!

given a force of 75N and an acceleration of 3m/s2, what is the mass

Answers

mass = 25kg---------------------------------

force = 75N --- (given)

acceleration = 3m/s² ---- (given)

FORCE = mass × acceleration

75N = mass × 3m/s²

mass = 75÷3

mass = 25kg-----------------------------FOLLOW ME

why is it harmful to wear dark sunglasses which have no UV block? Essay​

Answers

Answer:

dark glasses that do not block UV radiation can be more damaging to the eyes than not wearing eye protection at all, since they tend to open the pupil and allow more UV rays into the eye.

When you mix red and blue pigment, you produce the color:

orange
black
red
violet

Answers

Answer:

violet

Explanation:

Which phase of matter makes up stars?

Answers

i believe it’s gas because that’s all that stars are really made of

Answer:

Plasma is a phase of matter that makes up stars.

When conducting an experiment, a scientist should exhibit all of these traits EXCEPT

a-bias
b-curiosity
c-honesty
d-skepticism

Answers

A- bias
..............

When conducting an experiment, a scientist should exhibit all of these traits except bias. Thus, the correct option for this question is A.

What are the properties of scientists?

The properties of scientists are as follows:

They must be curious about their work.They must have a lot of patience as they are required to repeat experiments multiple times. Their courageous behavior motivates them to perform consistently.They are open-minded and free from any type of cultural and religious bias. They are creative, persistent, communicative, and detail-orientated individuals.

If scientists have properties of bias and discrimination, they never work consistently and are focused because their biased behavior ruins their interest, talent, and future perspectives.

Therefore, when conducting an experiment, a scientist should exhibit all of these traits except bias. Thus, the correct option for this question is A.

To learn more about Scientists, refer to the link:

https://brainly.com/question/26386481

#SPJ2


If a car travels 400m
in 25s
Calculate the
average Speed

Answers

16 MPs kshaojeneodinsbw

which toy car had the greatest applied force?

Answers

what are the choices

Answer:

d

Explanation:

A mustang, has an average velocity of 33 m/s while covering a course that is 21 miles long. (1 mile = 1609 m). How long did it take the driver to complete the course?

Answers

Answer:

t = 1023.9 seconds

Explanation:

Given that,

The average velocity of a Mustang, v = 33m/s

Distance, d = 21 miles = 33789 m

Let the driver takes t seconds. So,

Speed = distance/time

[tex]t=\dfrac{d}{v}\\\\t=\dfrac{33789}{33}\\\\t=1023.9\ s[/tex]

So, it will take 1023.9 seconds to complete the course.

a quality of the substance that never changes and can be used to identify the substance​

Answers

Uhh Physical property I think

Why do you think the Senate requires a greater percentage of votes?

Answers

Answer:

yes

Explanation:

yes

an object with a mass of 3.2 kg has a force of 7.3 newtons applied to it. what is the resulting acceleration of the object?

Answers

Answer:

2.28m/s^2

Explanation:

F=ma

a=F/m

a=7.3/3.2

a=2.28m/s^2

What is a wavelength of induced radiation quantum if 2-nd order diffraction maximum change on distancе 3.5 сm from сentral and distance between screen to diffraction lattice 0.5 m? Lattice period 0.01 mm.

Answers

Answer:

λ = 3,5  10⁻⁷ m

Explanation:

El fenómeno de difracción es descrito por la expresión

        a sin θ = m λ

usemos trigonometría para encontrar el sino

        tan θ = y/L

        tan θ = sin θ /cos θ

los experiemtos de difraccion ocurran para langulos pequeños

        tan θ = sin θ

        sin θ =y/L

substituimos

        a y/L = m λ

        λ = a y /m L

calculemos

        λ = 0,01 10-3 0,035 / 2 0,5

        λ = 3,5  10⁻⁷ m

define ohms laws and prism​

Answers

Ohm's Law is one of the most fundamental and important laws governing electrical and electronic circuits.

Answer:

the ohms law says

Explanation:

ohm found that current, voltage, and resistance in a circuit are always related in the same day.

ohms obersivations

ohms found that if the factors that affect resistance are held constant, the resistance of most conductors does not depend on the voltage across them charging the voltage in a circuit changes the current but does not change the resistance regardless of the applied voltage. the ohms law resistance in a circuit is equal to voltage divided by current

resistance =current or voltage =current × resistance

Wavelength and frequency have an inverse relationship. Which of these other examples also shows an inverse relationship?


A. Distance covered on a hike versus the number of steps taken
B. Grade on an assessment versus the amount of time spent studying
C. Time it takes to get somewhere versus driving speed
D. None of these shown an inverse relationship

Answers

the answer should be C

Which statement best explains why sensors (or senses) are necessary to produce a change in behavior?
A.
Organisms cannot sense stimuli without a central nervous system.
B.
Stimuli must be sensed in order to produce a response.
C.
Stimuli must be responded to in order to be sensed.
D.
Organisms cannot respond to stimuli without a central nervous system.

Answers

a- organisms cannot sense stimuli w/ out a central nervous system.

Answer:

It is (B) Stimuli must be sensed in order to produce a response.

Explanation:

pick the correct answer

Answers

The answer is A. Photosynthesis is caused when plants trap light energy in their leaves and use that energy to change water and carbon dioxide into glucose. Hope this helps :)

While at the county fair, you decide to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, you find the motion somewhat unpleasant. To take your mind off your stomach, you wonder about the motion of the ride. You estimate the radius of the big wheel to be 15 m, and you use your watch to find that each loop around takes 23 s.A. What is your speed?
B. What is the magnitude of your acceleration?
C. What is the ratio of your weight at the top of the ride to yourweight while standing on the ground?
D. What is the ratio of your weight at the bottom of the ride toyour weight while standing on the ground?

Answers

Answer:

Explanation:

From the given information:

radius = 15 m

Time T = 23 s

a) Speed (v) = [tex]\dfrac{2 \pi r}{T}[/tex]

[tex]v = \dfrac{2\times \pi \times 15}{23}[/tex]

v = 4.10 m/s

b) The magnitude of the acceleration is:

[tex]a = \dfrac{v^2}{r} \\ \\ a = \dfrac{(4.10)^2}{15}[/tex]

a = 1.12 m/s²

c) True weight = mg

Apparent weight = normal force

From the top;

the normal force = upward direction,

weight is downward as well as the acceleration.

true weight - normal force = ma  

apparent weight =mg - ma  

[tex]\dfrac{apparent \ weight}{true \ weight} = \dfrac{(mg - ma)}{(mg)}[/tex]

[tex]=1- \dfrac{1.12}{9.8}[/tex]

= 0.886 m/s²

d)

From the bottom;

acceleration is upward, so:

apparent weight - true weight = ma

apparent weight = true weight + ma

[tex]\dfrac{apparent \ weight }{true \ weight} =\dfrac{ mg + ma}{mg}[/tex]

[tex]\dfrac{apparent \ weight }{true \ weight} =1+ \dfrac{a}{g} \\ \\ = 1 + \dfrac{1.12}{9.8}[/tex]

[tex]= 1 + \dfrac{1.12}{9.8} \\ \\[/tex]

= 1.114 m/s²

PLEASE HELP ME WITH THIS ONE QUESTION
How many joules are needed to vaporize 125 g of liquid water at 100°C? The latent heat of vaporization is 2258 J/g.

Answers

Answer:

282,250 joules

Explanation:

Given that :

Mass of liquid water = 125 gram.

Latent heat of vaporization, L = 2258 J/g

Recall :

Q = mL

Where, Q = quantity of heat required in Joules

Mass) m

L = latent heat of vaporization

Q = mL

Q = 125 g * 2258j/g

Q = 282,250 joules

An object has a mass 4kg kept at a height 6m what is its gravitational energy? ​

Answers

Answer:

-24 from the solution I got using this formula pe=mgh and pe=0 then make g as a subject of the formula

a person walks 750m due north then 250 m due east of the entire walk takes 12 min find the person average velocity​

Answers

Answer:

v = 1.098 m/s

Explanation:

Given that,

A person walks 750m due north then 250 m due east of the entire walk takes 12 min.

We need to find the average velocity of the person.

Displacement,

[tex]d=\sqrt{750^2+250^2} \\\\d=790.56\ m[/tex]

Average velocity = displacement/time

[tex]v=\dfrac{790.56\ m}{12\times 60\ s}\\\\v=1.098\ m/s[/tex]

So, the average velocity of the person is 1.098 m/s.

Help me with this thanks!

Answers

Answer:

a. slope = 1

b. 70

c. y = 1.058x - 3.29 (it says under the graph)

d. about -3.29 or -3.3

hope this helps:)

The speed of light in air is 3.00 x 10^8 m/s. If a light wave has a wavelength of 5.80 x 10^-7m, what is its frequency?

Answers

Answer:

5.17 x 10^14 1/s

Explanation:

Equation:

c = λ f

c = speed of light

λ = wavelength

f = frequency

Solve:

3.00 x 10^8 m/s = (5.80 x 10^-7m) * f

f = (3.00 x 10^8 m/s) / (5.80 x 10^-7m)

f = 5.17 x 10^14 1/s


. The Soviet Yuri Gagarin was the first human to orbit Earth true or false

Answers

Answer:

true , I searched and got u the answer

what's the formula to calculate the radius of pendulum bob ​

Answers

Answer:

The combination, L = I / (m * R) , that appears in the equation for the period of a physical pendulum, is called radius of oscillations

Hope this helps :]

Other Questions
can i get a subway sand which ahhhhhhhhhhhhhhhhh hhhhhhhhhhhuuuuuuuuuuuuuuuuuuuuuhhhhhhhhhhhhhhhhhhhhhh What animals are monkeys related to that are extinct Mrs. Lockhart goes to dinner with her 10 besties and they spend $330 on their dinner. How much would their total cost be if they leave a 20% tip? What did the Emancipation Proclamation specifically declare? What is the y-interceptof this line? PLEASE HELP I WILL MARK BRAINLIEST TO WHOEVER ANSWERS CORRECTLY FIRST La finca de federico tiene un area de 576 m2 , en ella ha sembrado naranja y cafe, 3/8 de la finca estan sembrados de naranjas y el resto de cafe, cual es el area de la finca que estan sembrada por cafe? Which one of these DOES have DNA?A. Red blood cellsB. Hair that was trimmed at the barberC. A carD. Bones An area of land measures 735 metres by 756 metres. It is to be divided up into square plots of equal size (a) what is the area of the largest squares that will fit on it ? (m3+4n)(8) whats the answer Someone help me ASAP DUE IN COUPLE MINUTES its in Spanish thoBtw extra points URRGGEENTTT PLEASE HELP FAST 4/10 - 11/10 helppp right nowww pleaseeee x less than 8 as an algebraic expression Why did settlers bring slaves to the West? Por qu los colonos trajeron esclavos a Occidente? What is the definition of energy transfer Help me with this question please Question 22 (1 point)_____ Due Process states that the government must apply a law fairly and act according to the rules set by that law.ProceduralSpecificAttainderSubstantive 3.___+765 = 945Solve using the arrow way In the circle below, which of the following equations for major arc GE is FALSE? (READ THIS FIRST) one question if you dont know it dont Answer it Please help give me an explanation for I can believe you did not just pick random letters. it is making me get an F so please help Dont waste my question.