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Arturiano [62]
3 years ago
13

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Physics
1 answer:
Inessa05 [86]3 years ago
8 0

Three different units of energy is

1. Joule: is is SI unit of measuring thermal energy or heat

2. Calorie: this system of energy is used when we take CGS system of mass and specific heat capacity

3. BTU: this system is known as british thermal unit which is used in measuring engineering calculations

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Does coefficient of linear expansion depends on length​
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An animal-rescue plane flying due east at 27 m/s drops a bale of hay from an altitude of 74 m . The acceleration due to gravity
padilas [110]

To solve this problem we will find the net speed, through the two components given. The vertical component will be found through the energy conservation theorem. Finally with speed we will find the momentum as a function of mass and speed. Given the weight we will divide it by the acceleration to find that mass.

The x component is given as

v_x = 27m/s

For conservation of energy the vertical component of velocity would be

PE = KE

mgh = \frac{1}{2} mv_y^2

v_y = \sqrt{2gh}

Here,

m = Mass

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h = Height

Replacing we have that the vertical velocity is

v_y = \sqrt{2(9.8)(74)}

v_y = 38.08m/s

The magnitude of this velocity would be

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|V| = 46.68m/s

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4 0
3 years ago
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