Answer:
Landed before it explodes
Explanation:
vf = vi + at,
0 = 145 - (9.8)t,
t = 14.79 s (Time to reach highest point)
14.79 x 2 = 29.59 s (Time to land on the ground)
It will have landed before it explodes because both the time to reach the highest point and the time to land on the ground are less than 32 seconds.
Given that,
Mass of ring = m
Mass of sphere = M
Radius = R
Distance = √8R
We need to calculate the intensity of gravitational field
Using formula of intensity
Put the value into the formula
We need to calculate the force of attraction between the ring and the sphere
Using formula of attraction force
Where, M = mass of sphere
E = intensity of gravitational field
Put the value into the formula
Hence, The force of attraction between the ring and the sphere is
Answer:
Solids
Explanation:
The speed of sound is different in different mediums. Among solids, liquids, and gases, sound travels faster through solids. The particles in solids are more closes as compared to liquids and gases.
Inside the torch, they usually use copper or brass to conduct electricity.