Answer:
first option
Explanation:
we know the total amount of charges should be constant so
3 + (-3) + 5 + (-3) = 2
1 + 1 = 2 true
6 + 8 = 14 false
2 + (-2) = 0 false
5 + 3 = 8 false
Many factors including Decomposition, energy conversion, littering, erosion, etc.
Answer:
735watts
Explanation:
Power = Force*distance/time
Given
Force = mg = 50 * 9.8'
Force = 490N
distance = 3m
time = 2s
Substitute
Power = 490*3/2
Power = 1470/2
Power = 735Watts
Hence the minimum power output is 735watts
Astronomer Hubble was the one that discovered that the universe has many galaxies and that the universe is expanding. That's why they name the Hubble Telescope under his name.
Frictional force between the object and the floor=5 N
Explanation:
power= 50 W
velocity= 10 m/s
power= force * velocity
50=F * 10
F=50/10
F=5 N
Thus the force of friction= 5 N
