Atoms of the same element having equal numbers of protons, but different numbers of neutrons is called isotope.
Hmmm, no choices? No? Okay then... I believe it should be 9.0 J.
Answer:
330 m/s
Explanation:
The sound wave has to travel TO the cliff AND back = 2 * 49.5 = 99 m
magnitude of velocity = distance / time = 99m / .3 s = 330 m/s
Explanation:
Given
radius
mass disc
mass of person
velocity of Person
moment of inertia
Initial angular momentum
Final Moment inertia
final angular momentum
Conserving angular momentum
First, we calculate for the weight of the object by multiplying the given mass by the acceleration due to gravity which is equal to 9.8 m/s²
Weight = (14 kg)(9.8 m/s²)
Weight = 137.2 N
The component of the weight that is along the surface of the inclined plane is equal to this weight times the sine of the given angle.
Weight = (137.2 N)(sin 52°)
weight = 108.1 N