Answer: physical or mechanical weathering
Explanation:
Mechanical weathering which is also referred to as the physical weathering occurs when a rock is broken down into smaller pieces. In this case, there will be a physical change of the rock but its composition will not change.
Some examples include ice freezing and expansion of the cracks in the rock, Smstrong winds that carrycpieces of sand which then sandblast surfaces, moving water which causes abrasion etc.
Explanation:
It is given that,
Current in wire 1, I₁ = 10 A
Current in wire 2, I₂ = 20 A
Distance between wires, d = 10 cm = 0.1 m
Force per unit length is given by :
So, the magnetic force acting per unit length of the wires 
. Since, the current is in same direction. So, the force is attractive in nature.
Answer:
The mass of the cube is 420.8 kg.
Explanation:
Given that,
Length of edge = 38.9 cm
Density 
We need to calculate the volume of cube
Using formula of volume
We need to calculate the mass of the cube
Using formula of density
Hence, The mass of the cube is 420.8 kg.
A., Because speed is constant unless you stop it, or slow down <span />
Answer:
Option C
The toe can become an earthflow.
Explanation:
During wet weather especially winter season when snow is melting, the downhill toe of a slump is likely to become earthflow. It's incorrect to say that the toe turns into rock avalanche neither can the toe collapse and be deposited as a talus at the base of the slope. Despite the melting ice making clay sticky, the toe can't stop due to continued mass wasting that occurs. Therefore, the right answer is option C, <u>The toe can become an earthflow</u>
