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3 years ago

13

"Force is applied to an object and the object is moved over a distance in the same direction of the applied force" is the defini

tion of
balanced force.
gravitational force.
power.
work.

2 answers:

DaniilM [7]3 years ago

8 0

I believe this is gravitational force

Sonja [21]3 years ago

4 0

Hi there!!

The correct answer to your question is B. Gravitational force because the force is applied to one object as it is applied to the same direction.

Hope this helped love! Brainliest?

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Answer:

a. $I=981.34 N*s$

b. $v_f=3.96 m/s$

c. $v_{f1}=3.63m/s$

d. $y_f=0.673m$

Explanation:

Given: $m=67kg$ , $h=0.720m$ , $0$

a.

$I=\int\limits^{t_1}_{t_2} {F(t)} \, dt$

$F(t)=9200*t-11500t^2$

$I=\int\limits^{0.8s}_{0s}{9200*t-11500*t^2} \, dt$

$I=4600*t^2-3833.3*t^3|(0.80,0)$

$I=2944-1962.66=981.35$

$I=981.34 N*s$

b.

$v_f^2=v_i^2+a*y'$

Starting from the rest

$v_f^2=0+2*9.8m/s^2*0.80s$

$v_f^2=15.68$

$v_f=\sqrt{15.68m^2/s^2}=3.96 m/s$

c.

$I_{total}=p_f$

$I_1-m*g*d=m*v_{f1}-m*v_f$

$981.34-67kg*9.8m/s^2*0.720=67.0kg*v_{f1}-67.0kg*(-3.96m/s)$

Solve to vf

$v_{f1}=3.63m/s$

d.

$v_f^2=v_i^2+2*a*y_f'$

$y_f'=v_i/2*a =(3.63m/s)^2/2*9.8m/s^2$

$y_f=0.673m$

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3 years ago

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Answer:

option E.

Explanation:

When the ball is at the highest point the velocity of the ball is zero.

At the height point the kinetic energy is zero and potential energy is maximum.

At maximum point momentum cannot be maximum because velocity is zero.

Acceleration on the ball is equal to acceleration due to gravity on the ball.

Hence, the correct answer is option E.

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3 years ago

Which example best illustrates the transfer of energy between two waves?

FromTheMoon [43]

Answer:

A) A buoy rises in the water as a boat speeds past.

Explanation:

The passing boat transfers energy in the form of a wave. Other options illustrate other physics concepts like gravity (falling egg) or Newton's law (for every action, there is an equal and opposite reaction).

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Zielflug [23.3K]

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Explanation:

As elevator is moving upward but is decelerating to stop at top

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here upward direction is positive while downward direction is negative

Therefore net force is in downward direction

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Explanation:

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