Because acceleration was constant throughout the slide, we can show the slide lasted
Also because accleration was constant, we know the average velocity of the book was
Average velocity is also given by
so the width of the desk must have been
which means C is the most likely answer.
As it is given to us
also it is given that
P - Q + R = 0
so here we can rearrange it to find the value of R
so here we have
so the vector is given by above equation
Answer:
10.05volts
Explanation:
Work done to move a charge from the positive side of a plate to the negative side is represented mathematically as 1/2CV² which is also the energy stored by the capacitor.
Work done = 1/2CV² where
C is the charge
V is voltage difference that exists between the plates.
Given Work done = 101Joules
C = 2Coulombs
Substituting the values in the formula to get V, we will have;
101 = 1/2(2)V²
101 = V²
V = √101
V = 10.05volts
Therefore the voltage difference between the plates is 10.05colt's
Answer:
K = 483575 J
Explanation:
let K be the kinetic energy of the car and m be the mass of the car and v be the velocity of the car.
the kinetic energy is given by:
K = 1/2(m)(v^2)
= 1/2(1150)(29)^2
= 483575 J
Therefore, the kinetic energy of the sports car is 483575 J.
Answer:
Explanation:
The man is moving on a circular path . The reaction of wall is providing centripetal force .so
R = mv² / r
Frictional force = μR where μ is coefficient of friction
= μ x mv² / r
Frictional force = μ x mv² / r