Power = Work/Time
Convert 5 min to seconds and divide 2150J by that number.
Let's convert the initial height from feet to meters first:
The object is in free fall, so it is moving by uniformly accelerated motion with constant acceleration
(gravitational acceleration) from initial height h=121.9 m. Its vertical position at time t is given by
We want to know how long it will take to reach the ground, therefore we should calculate the time t at which the vertical position y(t) becomes zero:
rearranging,
The particles that are usually in a much higher energy usually comes from the magnetic field of the Earth in which it is trapped consisting the Van Allen radiation belts. In addition to that, these radiation belts are somewhat essential because it protects satellites orbiting the Earth from the Sun's high energy radiation.
Answer:
Acclⁿ = 18m/s² .
Explanation:
Mass = 10 kg
Frictional force is acting in opposite dirⁿ . Therefore the net force will be ,
=> F_net = 200N - Fricⁿ force
=> m * a_net = 200N - u mg
=> 10kg *a_net = 200N - 0.2*10*10
=> a_net = 180/10 m/s²
=> a_net = 18m/s²