Answer: -2m/s²
Explanation:
Each second, the acceleration decreases of 2m/s²
N.B.: in physics, deceleration is also acceleration.
Polaris is near the North Celestial Pole and nowhere near the Ecliptic. The Moon's orbit is tipped by 5 degrees to the Ecliptic. An eclipse can only happen when the Moon is near the line of nodes.
I would say that the answer is 4.) because if she does most of cooking on the stove, that would allow us to make the assumption that she is using heat and therefore requires and apparatus that conducts heat. Copper is also a metallic that is known to be conductive.
Answer:
The power output in horsepower to raise the object is, P = 13.14 Hp
Explanation:
Given data,
The mass of the object, m = 2000 kg
The object is raised to a height, h = 5.0 m
The time duration of the work, t = 10 s
The force acting on the mass,
F = mg
= 2000 x 9.8
19600 N
The work done on the object is,
W = F x h
= 19600 x 5
= 98000 J
The rate of doing work is defined as the power. It is given by the formula,
P = W / t
= 98000 /10
= 9800 Watts
1 Hp = 745.7 Watts
Therefore,
9800 watts = 13.14 Hp
Hence, the power output in horsepower to raise the object is, P = 13.14 Hp
