Answer:
700 watts
Explanation:
From the question, it is given that;
Force = 700N
Distance = 6m
Time = 6s
<u>First step:</u> we derive the formula that relates Power, distance and time, from first principle
But Energy is Force X Distance
Power = 700 watts
The power you will lose after walking the stairs is 700 watts
Acceleration = force/mass
1/4
s=ut+1/2at^2
0*4+1/2*1/4*4^2
1/2*1/4*16
1/2*4
=2
Answer:
The average force has a magnitude 6524 N due north.
Explanation:
The average net force F = ma where m = mass of car = 1400 kg and a = acceleration.
a = (v - u)/t where u = initial velocity of car = 0 m/s (since it starts from rest)
v = final velocity of car = 27 m/s due north and t = time of motion = 5.8 s
a = (27 m/s - 0 m/s)/5.8 s = 27 m/s ÷ 5.8 s = 4.66 m/s
Since the direction of the velocity change is the direction of the acceleration, the acceleration is 4.66 m/s due north.
The average force, F = ma = 1400 kg × 4.66 m/s = 6524 N
Since the acceleration is due north, the average force takes the direction of the acceleration.
So the direction of the average force is due north
The average force has a magnitude 6524 N due north.
False.
Unweathered rock that underlies soul is known as bedrock.
Answer: They are identical brightness
Explanation:
If the lights are assumed to be resistance bulbs
Each light has the same current and will each drop one third of the supply voltage.
