Answer:increases
Explanation:
It is given that a circular hole is made in a thin sheet and the circular shape is mounted on the machine to heat it.
As the metal is heated its size increases because of thermal expansion. This can also be explained by taking the account of the kinetic energy of molecules which increases as the temperature is increased. This increased kinetic energy causes the molecule to take more space and thus metal expands on heating .
C according to my calculations
Explanation:
Momentum before = momentum after
m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂
(50.0 kg) (0 m/s) + (12.0 kg) (0 m/s) = (50.0 kg) (2.0 m/s) + (12.0 kg) v
v = -8.33 m/s
Answer:
in general the largest mass M is located at the origin of the coordinate system.
Explanation:
The law of universal gravitation is
F = G m M / r2
Newton's second law is
F = m a
Where the acceleration is centripetal
a = v² / r
Let's replace
G m M / r² = m v² / r
M = v² r / G
The value of r is the distance between the two masses in interest, in general the largest mass M is located at the origin of the coordinate system.
This is because the body with more mass moves less than the body
Answer:
5. independent of its amplitude.
3. inversely proportional to its acceleration
Explanation:
The time period of oscillation is mathematically given as:
where:
length of the string through which the body oscillates.
acceleration due to gravity.
So, we can observe that it is independent of amplitude and depends on acceleration due to gravity and the length of the oscillating string.