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MAVERICK [17]
2 years ago
6

How to find velocity of center of mass before and after the collision

Physics
1 answer:
statuscvo [17]2 years ago
8 0

Hey there! I'll try to provide you with my best answer.

Answer: In a collision, the velocity change is always computed by subtracting the initial velocity value from the final velocity value. If an object is moving in one direction before a collision and rebounds or somehow changes direction, then its velocity after the collision has the opposite direction as before.

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All objects on earth, whether moving or stationary, are acted upon by which force?
frutty [35]

Answer:

air resistance

Explanation:

hope it will help

Brainlists please

5 0
3 years ago
A boy sits motionless partway down a playground slide. The force of friction balances the force of gravity. A girl hands the boy
DanielleElmas [232]

C.  

The force of friction = coefficient of friction * normal force.  

Adding the book to the boy increases the normal force and the component of the gravitational force directed down the slide.  This in turn increases the force of friction as can be seen by the relationship from the above equation.  For a stationary object, the force of static friction is always equal to the force applied (in this case, it is the component of the gravitational force directed down the slide).  That means that so long as the boy is not moving and his mass increases, the frictional force is increasing also to balance the increased downward gravitation force directed down the slide.

5 0
3 years ago
Please help. I need help with the questions on this page.
DaniilM [7]
Try looking up facts about physics or referring back to your notes in class. :)
6025loveteal
4 0
3 years ago
calculate the momentum of 5.07 kg egg that is dropped from a roof and falls 2 seconds before hitting the ground.
inysia [295]
Anything that's dropped on or near the Earth accelerates at the rate of
9.8 m/s² on its way down.  The mass of the object makes no difference. 
After falling for 2 seconds, it's falling at the rate of 19.6 m/s.

Momentum = (mass) x (speed)

The egg's momentum is   (5.07 kg) x (19.6 m/s) = 99.4 kg-m/s .
8 0
3 years ago
Suppose you have measured the diffraction pattern of a grating with d = 0.19 mm and have found that the spots were separated by
cestrela7 [59]

Answer:

d = 0.076 mm

Explanation:

Given data

diffraction pattern d1 = 0.19 mm = 0.019 cm

separated s(1)  = 1.8 cm

separated s(2) = 4.5 cm

to find out

d2 for an unknown

solution

we know here that spacing in between the diffraction fringe is always inversely proportional to diffraction grating so

we will apply here formula for unknown d that is

d1 (s1 / L) = d2 (s2 /L)

d2  = d1 ×  s(1) / s(2)

put here all thes evalue we get d2

d2  = d1 ×  s(1) / s(2)

d2  = 0.019 ×  1.8  / 4.5

d2 = 0.0076 cm

d2 = 0.076 mm

7 0
3 years ago
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