Answer:
Explanation:
The magnitude of the net force acting on an object is equal to the mass of the object multiplied by the acceleration of the object as shown in the formula below.17-Sep-2021
Answer:
The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.
Explanation:
Hope that helps
Answer:
C.
The particles in longitudinal waves travel parallel to the direction of the wave, whereas the particles in transverse waves travel perpendicular to the direction of the wave.
Explanation:
Longitudinal waves are waves that propagates energy from their source by movement of particles in a direction parallel to the wave motion.
Transverse waves produce oscillations that are perpendicular to the direction of propagation.
- Examples of longitudinal waves are sound waves, seismic p-waves
- Examples of transverse waves are electromagnetic waves
A wave is a disturbance that transmits energy from one point to another.
Answer:
(a) 5.25 second
(b) 27.5625 rad
Explanation:
fo = 1.003 x 10^2 rev / min = 1.672 rev / sec
ωo = 2 x 3.14 x fo = 2 x 3.14 x 1.672 = 10.5 rad/s
α = - 2 rad/s^2
(a) Let t be the time taken to stop.
ω = 0 rad/s
Use first equation of motion for rotational motion
ω = ωo + α t
0 = 10.5 - 2 x t
t = 5.25 second
(b) Let it rotates by an angle θ in the given time.
use third equation of motion for rotational motion
ω² = ωo² + 2 α θ
0 = 10.5 x 10.5 - 2 x 2 x θ
θ = 27.5625 rad