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3 years ago

What are the three most common forms of energy that we use frequently

Physics

2 answers:

yaroslaw [1]3 years ago

8 0

Answer:

The common forms of energy used in our houses are electrical energy, chemical energy available from fuels, food and energy originating from the sun.

Explanation:

thank me later

ira [324]3 years ago

7 0

Answer:

power plants energy, solar energy and Water engery

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A car has an initial velocity of 11.2 m /sec. the car accelerates at 10.0 m /s2 for 8.0 seconds. what is the velocity of the car

Vinil7 [7]

Initial velocity(u) = 11.2 m/s.
Final velocity(v) = ?
acceleration(a) = 10.2 m/s²

Using kinematic equation v = u + at

v = 11.2 + 10 x 8 = 11.2 + 80 = 91.2 m/s.

Therefore final velocity is 91.2 m/s.

7 0

3 years ago

lys-0071 [83]

Answer:

The object will have an upward acceleration

Explanation:

Let's consider the forces applied on the box. We have only two forces:

- The applied force of push, $F_p$ , downward

- The force of gravity, $W$ , (also known as weight of the object), downward

Therefore, the net force on the box is:

$F_{net}=F_p -W$

Here, we know that force applied is equal or greater than the weight, so

$F_p \geq W$

And therefore the net force is greater than zero:

$F_{net}\geq 0$ (1)

According to Newton's second law of motion, the net force on the box is equal to the product between its mass and its acceleration:

$F_{net}=ma$

where

m is the mass of the box

a is its acceleration

Given (1), this means that

$a\geq 0$

Therefore, the box will have an upward acceleration.

In this case force example we have:

$F_p = 100 N\\W = 40 N$

So the mass of the box is

$m=\frac{W}{g}=\frac{40}{10}=4 kg$

So the net force is

$F_{net}=F_p-W=100-40=60 N$

And the acceleration is

$a=\frac{F_{net}}{m}=\frac{60}{4}=15 m/s^2$

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3 years ago

Which type of bond forms when two or more atoms share electrons?

Oxana [17]

Covalent bonds form when two or more atoms share electrons

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3 years ago

Which of the following is correct definition of electrical energy

tatyana61 [14]

Answer:

Electrical energy. Jump to navigation Jump to search. Electrical energy is energy derived from electric potential energy or kinetic energy. When used loosely, electrical energy refers to energy that has been converted from electric potential energy

Explanation:

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3 years ago

Determine the largest intensity w of the uniform loading that can be applied to the frame without causing either the average nor

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3 years ago

What are the three most common forms of energy that we use frequently​

What are the three most common forms of energy that we use frequently