D. I know that like the back of my hand
Answer:
- longitudinal waves only
Explanation:
The P seismic waves travel as elastic motions at the highest speeds. They are longitudinal waves that can be transmitted by both solid and liquid materials in the Earth's interior.
The acceleration would be 6m/sThis is because of the formula, "f/m=a" to find the acceleration; We would need to subtract the force of the friction which equals 1380, then divide that by the mass (which was 230) to get the answer 6
Answer:
Explanation:
Case-A
Block weight 
Friction Force 
and friction force is

where N=normal reaction (Usually equals to weight)


Case-B
Block weight 
Friction Force 



Case-C
Block weight 
Friction Force 


