V0 and gains a speed v0. If it were accelerated instead through a potential difference of 2V0, what speed would it gain? Potential: A proton is accelerated from rest through a potential difference and gains a speed . If it were accelerated instead through a potential difference of , what speed would it gain? v02–√ 8v0 4v0 2v0

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2 . how much is the spring compressed x from its natural length?

One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.

What is the answer to these problems 30 pt