True
False
Answer:
Convection is the transfer of thermal energy from one place to another by the movement of gas or liquid particles. How does this happen? As a gas or liquid is heated, the substance expands. This is because the particles in liquids and gases gain kinetic energy when they are heated and start to move faster.
Answer:Convection is the transfer of thermal energy from one place to another by the movement of gas or liquid particles. How does this happen? As a gas or liquid is heated, the substance expands. This is because the particles in liquids and gases gain kinetic energy when they are heated and start to move faster.
b. increase the area over which the person’s weight is distributed.
c. increase the pressure on the snow.
d. increase the buoyancy of the person.
Answer:
Option B is correct.
Explanation:
Snowshoes has large area of crossection.
As a person wears the snowshoes, the weight of the person distributed over a large area and thus the pressure exerted by the surface due to the weight of the person is less.
The relation among pressure, force and area of crossection is given below.
As area of crossection is large, pressure is small and thus the person walk on deep snow.
If this were to happen then the particle would be at the node (the point in the middle where the lines meet). Therefore, the particle will not move up or down because you can see the waves interfere destructively so there is no movement at the node.
answer. The particle will remain stationary due to interference.
Answer:
The particle will remain stationary due to interference.
Explanation:
93,000
930,000
9,300,00
Answer:
930,000
Explanation:
9.3 x 10^5
The power of 10 (5 in this question) gives the number of times the decimal point is to be moved to the right.
If there was a negative sign in front of the power, the number would have been an indication of how many times the decimal point is to be moved to the left.
Further to this
9.3 x 10^5 = 9.30000000 x 10^5
= 930000.000
= 930,000