Answer:
exactly 5.88 J
Explanation:
Let's calculate the initial total mechanical energy of the vase when it starts its fall, from a height of 0.750 m. At that moment, the vase does not have kinetic energy, but only potential energy. So, its total mechanical energy is given by:
When the vase falls and reach the position at 0.500 m, part of this energy has been converted into kinetic energy, However, the total mechanical energy is constant, because there are no frictional effects: therefore, the total mechanical energy at 0.500 m above the floor is still equal to the initial total mechanical energy, 5.88 J.
Increasing the temperature or length of the wire increases its resistance.
Increasing its thickness reduces its resistance.
Answer:
h = 44.5 m
Explanation:
Given that,
Power of the engine, P = 5 hP = 3728.5 W
Weight of the load, W = 2000 lb = 8900 kg
We need to find how high the load be raised in 10 s.
We know that,
Power,
Where
W is work done
Also,
1 Pound = 4.45 newtons earth (N)
So, the height raised by the load is 44.5 m.
All you do is 0.5 times the mass times the kenetic energy hope this helps
If Frank leaves Gainesville at 7:30 am, the time he should arrive in Tampa is 12.00 pm after spending 4 hours 30 minutes on the road.
<h3>What is average speed? </h3>
The average speed of an object is the ratio of total distance to total time of motion.
V = total distance/total time
For Frank to be in Tampa by noon, he must spend atleast 4 hours 30 minutes on the road.
18.3 mph = d/4.5 h
d = 82.35 miles
The distance between Gainesville and Tampa is 82.35 miles.
Thus, we can conclude that, if Frank leaves Gainesville at 7:30 am, the time he should arrive in Tampa is 12.00 pm after spending 4 hours 30 minutes on the road.
Learn more about average speed here: brainly.com/question/6504879
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