KE = 1/2 * m* v^2
= 1/2 * 40 * 225
= 4500 J
hope it helped
Answer:
Yellow
Explanation:
Yellow light has lesser energy than blue light, this means blue light has a much smaller wavelenght. For the width of the central band to be greater, the wavelenght has to be more, and yellow light has a much larger wavelenght
Answer:
Part c)
Explanation:
Light bulb is marked as 75 W and 120 Volts
so it means that when we apply 120 volts across the bulb then it will consume the total power of 75 W
now when we connected the bulb with the help of conducting wires with some resistance across them then few of its voltage will fall across the wires
due to which the voltage across bulb is less than 120 Volts
So the power given by the bulb is less than 75 W
Part c)
Resistance of the bulb is given as
now total resistance of the circuit
now current in the circuit
so actual power delivered to the bulb is given as
Answer: Easy it's 20 miles per second
Explanation:
500 ÷ 25 is equal to 20 miles per second aka 20 × 25 is equal to 500.
Question: which statement provides a complete scientific discription of an object in motion?
Answer: the marble moved 30 cm north in 6 seconds.
Explanation: motion is a change in position of an object over time an object's motion cannot change unless it is acted upon by a force
question answered by
(jacemorris04)