Answer:
Chemical energy to Electrical energy to Light energy
Explanation:
- Chemical energy; This is the energy stored in the battery.
- Electrical energy; This is the energy transformed by the battery and sent through the connecting wires to the lightbulb
- Light energy; When the electrical energy gets to the light bulb ,the light bulb converts it to light energy. Which is seen when the light bulb is turned on.
Answer:
The mass of the puck is 0.166 kg
Explanation:
It is given that,
Speed of the ice hockey puck, u = 12 m/s
Impulse delivered by the hockey stick, J = 4 kg-/s
After delivering an impulse, the puck move off in the opposite direction with the same speed, v = -12 m/s
We need to find the mass of the puck. The impulse is equal to the change in momentum i.e.
m is the mass of the puck
So, the mass of the puck is 0.166 kg. Hence, this is the required solution.
understandable terms created for the physichs terms can create mass destruction in the fires created with force
Answer:
300
Explanation:
work done=force×displacement
=60*5=300J
power=work done/time
=300/3=100Js
Answer:
3.63 s
Explanation:
We can solve the problem by using the equivalent SUVAT equations for the angular motion.
To find the angular acceleration, we can use the following equation:
where
is the final angular speed
is the initial angular speed
is the angular distance covered
is the angular acceleration
Re-arranging the formula, we can find :
Now we want to know the time the bit takes starting from rest to reach a speed of . So, we can use the following equation:
where:
is the angular acceleration
is the final speed
is the initial speed
t is the time
Re-arranging the equation, we can find the time: