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4 years ago

Complete the blanks and tell the reaction force

Physics

1 answer:

olasank [31]4 years ago

5 0

1 ====> Your answers would be, Newton’s third law says that every time there is an ACTION force, there is also a REACTION force that is EQUAL in size and acts in the OPPOSITE direction.

2 =====> Newton’s third law states that forces must ALWAYS occur in PAIRS.

3 ===> Action forces ====> Tell the REACTION force.

A. Your bottom pushing on your desk seat: SEAT PUSHING UP ON YOUR BOTTOM.

B. A bat hitting a baseball: BASEBALL HITTING THE BAT.

C. Your finger pressing on your phone screen while texting: PHONE SCREEN PUSHING BACK ON YOUR FINGER.

Hope that helps!!!! : )

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An artillery shell is launched on a flat, horizontal field at an angle of α = 40.8° with respect to the horizontal and with an i

Lina20 [59]

Answer:

1317.4 m

Explanation:

We are given that

Angle= $\alpha=40.8^{\circ}$

Initial speed = $v_0=346m/s$

We have to find the horizontal distance covered by the shell after 5.03 s.

Horizontal component of initial speed= $v_{ox}=v_0cos\theta=346cos40.8=261.9m/s$

Vertical component of initial speed= $v_{oy}=346sin40.8=226.1m/s$

Time=t=5.03 s

Horizontal distance = $Horizontal\;velocity\times time$

Using the formula

Horizontal distance= $261.9\times 5.03$

Horizontal distance=1317.4 m

Hence, the horizontal distance covered by the shell=1317.4 m

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3 years ago

What is the formula to calculate liquid pressure?/

Mice21 [21]

1. set up the equation

2. multiply the variables

3. analyze your results

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4 years ago

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What property do all three of these common household substances have in common?

Oxana [17]

Answer:

whats the items

Explanation:

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3 years ago

7. Electrical forces are extremely what

Reptile [31]

Answer:

it's extremely strong?

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3 years ago

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A proton and an electron are released from rest, with only the electrostatic force acting. Which of the following statements mus

Anit [1.1K]

Answer:

Their kinetic energy will increase but potential energy will decrease.

Explanation:

Given that

Initial velocities of electron and proton is zero.

We know that ,electron have negative charge and proton have positive charge it means that they will attract to each other.We know that opposite charge attract to each other and same charge repels to each other.

It means that the velocities of proton and electron will increase and that leads to increase in the kinetic energy of proton and electron.

We know that potential energy U

$U\alpha -\dfrac{1}{r}$

So when r will decrease then U will increase but in negative direction it means that U will decrease.

So we can say that their kinetic energy will increase but potential energy will decrease.

5 0

3 years ago