Answer:
P.E = 82320 joules
Explanation:
Given,
The mass of the squirrel, m = 700 Kg
The squirrel leaped to a height, h = 12 m
The acceleration due to gravity, g = 9.8 m/s²
The potential energy of a body is possessed by its height. It is given by the formula
P.E = mgh joules
Substituting the values in the above equation
P.E = 700 Kg x 9.8 m/s² x 12 m
= 82320 joules
The Potential Energy of the squirrel is, P.E = 82320 joules
Answer:
95.47 C
Explanation:
Heat added = mass × heat capacity × rise in temperature
So, rise in temperature =
20000 / (0.05 × 4190)
Rise in temperature = 95.47 C
When a small cart collide with a large mass then during collision they must be in contact with each other for some interval of time
During this contact interval we can say they will exert normal force on each other
This normal force is always equal and opposite on two balls which means this force will follow Newton's III law
It will be same in magnitude but opposite in the direction
So here correct answer would be
<u><em>They both experience the same magnitude of the collision force.</em></u>
Answer:
The length of chain she is allowed is 1.169 ft
Explanation:
The given parameters are;
The linear density of the chain = 0.83 lb/ft
The weight limit of the chain she wants = 1.4 lb
The formula for linear density = Weight/length
Therefore, in order to keep the chain below 1.4 lb, we have;
Linear density = Weight/length
Therefore;
The maximum length she wants = Weight/(Linear density)
Which gives;
The maximum length she wants = 1.4 lb/(0.83 lb/ft) =1.169 ft
Therefore;
The length of chain she is allowed = 1.169 ft.