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Eduardwww [97]
3 years ago
7

Forces contribute to the net force on a car rolling down a ramp.

Physics
1 answer:
Jlenok [28]3 years ago
8 0
The contact force or support force which is perpendicular to the objects path
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With no friction, you can use the relationship between potential and kinetic energy to predict the speed of the car at the botto
Dvinal [7]

The speed of the car at the bottom of the hill is obtained as, v = \sqrt{2gh}

According the principle of conservation of energy, the total potential energy of the car will be converted to maximum kinetic energy when the car is at the bottom of the hill.

K.E = P.E\\\\\frac{1}{2} mv^2 = mgh\\\\v^2 = 2gh\\\\v= \sqrt{2gh}

where;

  • <em>v </em><em>is the speed of the car at the bottom of the hill</em>
  • <em>h </em><em>is the height of the hill</em>
  • <em>g </em><em>is acceleration due to gravity</em>

Thus, the speed of the car at the bottom of the hill is obtained as, v = \sqrt{2gh}

Learn more about conservation mechanical energy here: brainly.com/question/332163

3 0
3 years ago
Practice report of resistance measurement with Wheatstone bridge
belka [17]

Answer: Hii

Explanation: I had a picture.. so i think this might help you.. I answered this question using this picture, so i thought same might go to u too.. Hv a look.. Good Luck..!!

Download pdf
6 0
3 years ago
What is the circle of least confusion?
Artist 52 [7]

Answer and Explanation:

In optics, a CoC(Circle of Confusion) is defined the minimum cross section of a paraxial bundle of rays made by a lens which is sphero-cylindrical type and can be viewed as an optical spot, which do not converge perfectly at the focus  while a point source is being imaged due to spherical aberration.

The Circle of Confusion is also referred to as circle of indistinctness or a blur spot

5 0
4 years ago
You watch a distant lady driving nails into her front porch at a regular rate of 1 stroke per second. You hear the sound of the
Afina-wow [57]

Answer:

340 meters

Explanation:

For this we have to use the formula of constant velocity motion:

d=v*t\\where:\\d=distance\\v=velocity\\t=time

Because you hear the blows exactly 1 per second. And you hear only one blow after she finished, the sound takes one second to get to you.

d=340(m/s)*(1(s))=340m

4 0
3 years ago
A string has a mass of 0.8Kg. The length of the string is 2m. The tension in the string is 5N. The string is stretched and fixed
viktelen [127]

Answer:

1.25Hz

Explanation:

For waves on a string, the second harmonic is obtained from;

2fo = 1/l √T/M

Where;

l = length of the string

M= mass in kilograms

T = tension in the string

2fo = 1/2√5/0.8

2f0 = 1.25Hz

3 0
3 years ago
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