A seems wrong because with 20 N the can should go more than .5 m so I would say the awnser is B
Hope I Helped :)
This question sounds like it came after some activity where
some forces were observed. Since we were not there, and
we don't know what the activity was, we don't know what forces
were observed, and we have no clue to how they might be related
to the motion of the Earth around the sun.
Yes, you are pulling on the Earth, with equal force.
Your weight on Earth is equal to the Earth's weight on you.
I can't think of a way for you to go out and see it or measure it,
but there are two things we learn in Physics that tell us that it
must be true.
#1). Newton's 3rd Law of motion:
For every action, there is an equal, opposite reaction.
If the Earth pulls on me, then I must pull on the Earth with an
equal, opposite force.
#2). Newton's law of universal gravitation:
Gravitational force = (a Constant) · (mass₁) · (mass₂) / (distance)² .
Take a good, long, hard look at this formula for the gravitational force.
It tells the strength of the gravitational force between the Earth and you.
But it doesn't say WHICH object is (mass₁) and which object is (mass₂) !
It doesn't matter ! BOTH objects feel the same gravitational force !
The answer to the first question is that, the sumo wrestler loses energy equal to the absorbed energy of the trampoline plus the air friction drag loss. With the second question, the gymnast should maintain energy equal to the Potential energy gymnast has at the peak of bounce height by exerting little force to compensate for the energy spent on the internal friction of the trampolines action.
Answer:
ambulance speed is 30.38 m/s
Explanation:
given data
hear frequency = 510 Hz
pass frequency = 427 Hz
speed of sound = 343 m/s
to find out
ambulance speed
solution
we consider here ambulance speed is v
so when we hear frequency velocity equation will be
510 = 343f / ( 343 - v ) ...........................1
and when ambulance pass velocity equation will be
427 = 343f / ( 343 + v ) ...........................2
so from equation 1 and equation 2
= 510 / 427
= 510 / 427
solve it we get
v = 30.38 m/s
so ambulance speed is 30.38 m/s