Flux = B * Area
If B increases, flux also increases.
As you were holding the block down and in place, the spring exerted an upward force that balanced the downward push by your hand and its own weight. So this restoring force has a magnitude of <em>R</em> such that
<em>R</em> - 50 N - (3 kg) <em>g</em> = 0 => <em>R</em> = 79.4 N
As soon as you remove your hand, the block has acceleration <em>a</em> such that, by Newton's second law,
<em>R</em> - (3 kg) <em>g</em> = (3 kg) <em>a</em> => <em>a</em> = (79.4 N - (3 kg) <em>g</em>) / (3 kg) ≈ 16.7 m/s^2
pointing upward.
Answer:
the molecules form new chemical bonds
Explanation:
Answer:
Chemical energy to thermal(heat) energy
Explanation:
A gas burner contains chemical hydrocarbon such as methane, this methane is highly flammable.
The gas burner which contains methane when lighted up converts the chemical energy in the chemical to heat energy through the fire it produces. The fire then helps in heating up the surface it is applied to.
Answer:
The one with highest velocity
Explanation:
The momentum of an object is given by
where
m is the mass of the car
v is the velocity of the car
In this problem, we have two identical cars: identical means they have same mass, so
The momentum of car 1 is
while the momentum of car 2 is
By comparing the two expressions, we see that the car with greatest momentum is the one with highest velocity, since the mass is the same.
