1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Karolina [17]
3 years ago
11

Students are asked to design an experiment about Newton’s 2nd Law. One student decides to roll a marble down a ramp into a pile

of sand to measure the force impact.
Which variable should she manipulate to best exemplify the relationship explained by this law?

A.She should use a heavier marble, because the marbles will roll at the same rate of acceleration but more mass will produce a larger impact force.


B.She should increase the slope of the ramp by propping it up to higher height, because a steeper ramp will cause a greater rate of acceleration and a larger impact force.


C.She should use a heavier marble, because a bigger marble will accelerate more quickly down the ramp and cause a greater impact force.


D.She should decrease the slope of the ramp, because a ramp with a smaller slope will allow the ball more time to build up speed and cause a greater impact force.
Physics
1 answer:
sveta [45]3 years ago
8 0

Answer:

A

Explanation:

Trust me I just took it !

You might be interested in
Find the velocity. 10 points. Will give brainliest!
BARSIC [14]

Answer:

6.060606...

Explanation:

To figure out velocity, you divide the distance by the time it takes to travel that same distance, then you add your direction to it. So the distance would be 1000m and the time would be 2 minutes and 45 seconds and if you convert the minutes into fractions you would get 165 seconds than you would divide 1000m by 165 seconds and you would get 6.060606... seconds as her average velocity

4 0
4 years ago
A standard baseball has a mass of 144.3 g. Determine the weight, in newtons, of a baseball.
alex41 [277]
Fg = ma
Fg = (0.1143 kg) (9.81 N/kg)
Fg = 1.12 N
7 0
3 years ago
A bucket is filled partly with water such that its combined mass is 2.5 kg. It is tied to a rope and whirled in a circle with a
Ivenika [448]

Answer:

1. Simply τ = m x g x r = 54kg x 9.8m/s² x 0.050m = 26 N·m

2. The bucket creates a torque

τ = 75kg x 9.8m/s² x 0.075m = 55 N·m,

so we must create the same torque with the handle.

55 N·m = F x 0.25m

F = 220 N

Explanation:

Hope this is helpful

7 0
3 years ago
Explain why a moving object cannot come to a stop instantaneously (in zero seconds)
elena55 [62]

Answer: The pressure from the air and force of who or what used effort to make it move. For example you roll a ball it doesn't stop unless it runs out of the force which in this case would be energy.

Explanation:

Knowledge

7 0
3 years ago
2. A string with a length of 0.9m that is fixed at both ends
Lostsunrise [7]

Answer:

a.) 1.8 metre

b.) 66.67 Hz

Explanation: Given that the

Length L = 0.9m

Wavelength (λ) = 2L/n

Where n = number of harmonic

If n = 1, then

Wavelength (λ) = 2L = 2 × 0.9 = 1.8 m

b.)

 If waves travel at a speed of 120m/s on this string, what is the frequency

associated with the longest wave (first harmonic)?

Given that V = 120 m/s

V = Fλ

But λ = 2L, therefore,

F = V/2L

F = 120/1.8

F = 66.67 Hz

7 0
3 years ago
Other questions:
  • Rounded to the nearest whole number, what is the atomic mass of platinum? 78 117 195 273
    9·2 answers
  • ​Serdar is interested in psychopathology and wants to go to graduate school and get a doctoral degree in psychology. His choice
    12·2 answers
  • Lighting from the sun travels through space to earths atmosphere.
    9·1 answer
  • The position function of an object moving along a straight line is given bys = f(t). The average velocity of the object over the
    8·1 answer
  • Why do planetary scientists hypothesize that the moon formed with a molten surface
    9·1 answer
  • A proton and an electron form a dipole separated by 1.5e-10 m along the y-axis centered at the origin. What is the magnitude of
    7·1 answer
  • Suppose the price elasticity of supply for gasoline in the short run is estimated to be 0.4. Due to an unexpected surge in the d
    11·1 answer
  • What happens to the orbit of earth when its velocity is halved
    9·2 answers
  • Bugs Bunny, having a mass of 75 kg, is pulled by Babs Bunny and Buster Bunny. Babs
    12·1 answer
  • A sprinter starts from rest and accelerates to 10. m/sec in a time interval of 1.0 seconds, Calculate the runner's acceleration
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!