Answer:
1.75 kW
Explanation:
First, the rate at which work is done is simply termed Power
m = 35kg
v = 5.0 m/s
since the undergoes a vertical motion g = 10 m/s²
F = W = mg = 35×10 = 350 N
Power = Fv = 350×5 = 1750 Watt
Explanation:
In local galactic group the force of expansion of universe is overcome by the force of attraction due to gravity. Best example is our own galaxy milky way and another giant galaxy in our local group Andromeda. Andromeda having enormous gravity is pulling milky way towards itself, overcoming the force of expansion.
So, there are possibilities of collision despite the expansion of universe at a rapid pace. It is estimated that the milky way and Andromeda will collide each other after about 50 billion years from now.
Answer:
a planet is within a solar system and a solar system is within a galaxy.
Answer:
150 J.
Explanation:
Work-done: This can be defined as the product of force and distance moved along the direction of the force.
The S.I unit of work is Joules(J).
From the question,
W = F×d............. Equation 1
Where W = work done, F = force, d = distance.
Given: F = 25 N, d = 6 m
Substitute into equation 1
W = 25×6
W = 150 J.
Hence the work done by Marissa = 150 J