Mechanical energy is a term that is used to describe A. kinetic energy only. B. both potential and kinetic energy. C. potential
2 answers:
You might be interested in
Explanation:
It is given that,
Mass of a box car,
Initial speed of a box car,
Initial speed of another stationary car is 0 as it was stationary
Mass of another box car is 10,000 kg
Let V is the speed of the cars just after the collision. It is based on the concept of inelastic collision. So, using the conservation of linear momentum we get :
So, the speed of the cars just after the collision is 0.875 m/s.
Answer:
The magnitude of magnetic field is 0.312 T and direction of the magnetic field is out of the page.
Explanation:
Given:
Velocity of proton
Magnetic force N
Charge of proton C
The magnetic force experience by proton in magnetic field is given by,
Here magnetic force experienced by proton is maximum so we take
T
According to the left hand rule the direction of magnetic field is out of the page.
Therefore, the magnitude of magnetic field is 0.312 T and direction of the magnetic field is out of the page.
Answer:
25 seconds (rounded up to nearest one second)
Explanation:
Cheetah's speed = 91.8 km/h
Gazelle's speed = 77.9 km/h
Both animals are running at full speed with the gazelle 97.3 m ahead.
Converting their respective speeds to m/s ;
Cheetah's speed = = 25.5 m/s
Gazelle's speed = = 21.6 m/s (correct to one decimal place)
Assuming the gazelle stops, cheetah will run at 25.5 m/s - 21.6 m/s = 3.9 m/s to catch its prey (gazelle).
Time = distance ÷ speed
The time cheetah will take to catch its prey = 97.3 m ÷ 3.9 m/s = 24.94871795 s = 25 seconds (rounded up to nearest one second)