Answer: Option B) 1038J
Explanation:
Given that
Mass of person (m) = 83kg
kinetic energy (KE) = ?
Speed of elevator (v) = 5m/s
Kinetic energy is the energy possessed by a moving object. It is measured in joules, and depends on the mass (m) of the object and the speed (v) by which it moves
i.e K.E = 1/2mv²
KE = 1/2 x 83kg x (5m/s)²
KE = 0.5 x 83 x 25
KE = 1037.5J (Round the kinetic energy to the nearest whole number as 1038J)
Thus, the kinetic energy of the person is 1038 Joules
Answer:
3
Explanation:
The mechanical advantage is the ratio of the output force to the input force.
MA = 156 / 52
MA = 3
Answer:
The Sun
Explanation:
A few main examples of the sun providing the Earth with energy; It is part of the process of photosynthesis. Sunlight can be used to produce solar energy. The sun keeps the Earth warm enough for living organisms to survive.
This answer of the strength and directions of the magnetic field is a
Answer:
I think 1. is 17 and 2. is 600
Explanation:
sorry its been a while..