An electric generator is when a magnet is rotated through a coil of wire to produce an electric current.
Answer:
Explanation:
Distance = 100 miles if you state that you wanted to complete the journey in 2 hours or you could say that your average Speed is 50 mph. Distance = 100 miles, Time = 4 hours, Therefore the average Speed was 25 mph. Now Speed = 70 mph. Time 3 hours and 30 minutes ,& Distance = 3 hours = 210miles + 35 miles = 245 miles.
The added weight of the sand puts more downward pressure on the wheels contacting the rails, which would cause the trains speed to decrease.
A star is formed in a nebula for millions of years, the star then forms into a star, after so long based on its size it will turn into a supernova or a black hole. while smaller stars will turn into a supernova then into a white dwarf
Momentum should be conserved. The momentum of both
objects must balance with their initial and final momentum.
Let m1 and v1 be the mass and velocity of the
bowling ball
And m2 and v2 be the mass and velocity of the
bowling pin
(m1v1)i + (m2v2)i = (m1v1)f + (m2v2)f
30 kg m/s + (1.5 kg)(0 m/s) = 13kg m/s + 1.5v2f
V2f = 11.33 m/s
<span>So the momentum = 1.5 kg(11.33 m/s) = 17 kg m/s</span>