Alfredo, who has a mass of 60 kilograms, jumped off a retaining wall. His kinetic energy when he landed on the ground was 882 joules. How high was the wall?

33: i think it’s b

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.