Answer:
turning off the electric current turns off the electromagnet
Explanation:
Answer:
0 m/s
Explanation:
Average velocity is displacement over time.
v_avg = Δx / Δt
Displacement is the distance between the start and the finish.
The circumference of the track is:
C = 2πr
C = 2π (7 m)
C ≈ 44 m
The distance covered by the object is:
d = vt
d = (11 m/s) (8 s)
d = 88 m
So the object travels 2 circumferences, meaning it ends back where it started. Therefore, the displacement is 0 m, and the average velocity is 0 m/s.
The answer to your question is Protons!
Momentum = Mass * Velocity
Total mass = 85 + 4.5 = 89.5 kg
Velocity = 2.1 m/s
Total momentum = Total Mass * Velocity
= 89.5 kg * 2.1 m/s
= 187.95 kgm/s or 187.95 Ns
Choice-'b' says the formula for kinetic energy in words.
KE = (1/2) · (M) · (S²)