What a great photo ! The answer is 'diffraction'.
Answer:
The density of the other liquid = 700 kg/m³
Explanation:
Given that
balance in the air = 29 N
Lets take the mass of the object = m
Volume of the object = V
m g = 29 N -----------1 ( assuming that bouncy force due to air is zero)
Spring balance in the water :
Bouncy force due to water = ρ V g
Density of water = 1000 kg/m³
Spring balance = 19 N
19 + ρ V g = m g
19 + ρ V g = 29
ρ V g =10 ----------2
Spring balance in the another liquid :
Bouncy force due to water = d V g
d=Density of the other liquid
Spring balance = 22 N
22 + d V g = m g
22 + d V g = 29
d V g =7 ----------3
Form equation 2 and 3
d= 700 kg/m³
Therefore the density of the other liquid = 700 kg/m³
compression forces can cause mountains to form or earthquakes to occur depending on how the earth's crust reacts to the force
Answer:
The velocity of the boat and fisherman after he lands in the boat is 3.812m/s
Explanation:
We will solve this question on the general Derivation for general case of a man jumping n the boat
m = Mass of the man = 80kg
M= mass of the boat 37.5kg
V(m, g) = Velocity of man with respect to ground = 5.6m/s
V(b , g) = Velocity of boat with respect to ground = Vo = 0m/s ( rest)
velocity of the boat and fisherman after he lands in the boat = V1
As there is no external force acting on the man then we can apply conservation of the Linear Momentum.
m*V(m, g) + M*Vo = (M+m)V1
On substituting the values we get
V1 =
V1 = = 3.812 m/s
Therefore the velocity of the boat and fisherman after he lands in the boat is 3.812m/s.
Answer:
Since energy means capacity to do work, when stone is in ground level, it has 0 work because it doesn't covered any distance but when stone lifted at a certain height , it covered a certain distance and work is done. Thus same stone has energy when it is lifted at a height .
Explanation: