How much kinetic energy does a 50 kg object have if its moving at a velocity of 2 m/s? a) 25 joules b) 50 joules c) 100 joules d) 200 joules

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?