Answer:
After 5minutes the temperature in the metal cup will decrease the most
Explanation:
this is because metal is a very good conductor of heat, this property also allows it to lose heat to the surrounding, while plastic and cardboard are insulators and they tend to retain the heat hence the water is warm after 5 minutes.
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.
Answer:
Radio waves and microwaves is the answer.
Explanation:
any wave having low frequency or high wavelength will have low energy.
Explanation:
Cheetahs can go from 0 to 60 miles per hour in just 3.4 seconds and reach a top speed of 70 miles per hour. While they are the fastest land animal in the world, they can only maintain their speed for only 20 to 30 seconds.