Answer:
True.
Explanation:
The kinetic energy and potential energy are equal when an objects falls as its potential energy is converted into kinetic energy.
Answer:
Hazardous waste is only produced by industry, such as factories or office parks.
False
Explanation:
Hazardous waste is the waste containing toxic and explosive material.
Industrial waste contains toxic, explosive and corrosive material. Thus, the waste out of industries are hazardous. But, the waste from other sources are also hazardous which are mines, small business, military, defence services etc.
So, Hazardous waste is only produced by industry, mines, small business, military, defence services.
Thus, it is not produced only by industry. Hence, the given statement is false.
Answer:
750J
Explanation:
Given parameters:
Mass of the object = 0.15kg
Velocity of the object = 100m/s
Unknown:
Kinetic energy of the body = ?
Solution:
The kinetic energy is the energy due to the motion of a body. It is mathematically expressed as;
K.E = 
m v²
m is the mass of the body
v is the velocity
Now insert the parameters and solve;
K.E = x 0.15 x 100² = 750J
Answer:
d. remains the same
Explanation:
We know that if there is no external resistive force then the total energy of the system remains constant.
The total energy is the summation of kinetic and potential energy.
When an object moves from point A to another point D then the total energy, potential gravitational and kinetic energy will remain same.
Answer:
True
Explanation:
It is possible to reduce/lessen the force that is acting on an object. For example, if you were pushing on a box and wanted to push less on the box, that would be possible.
