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valentinak56 [21]
3 years ago
6

A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5m long. The bowler hears the sound o

f the ball hitting the pins 2.50s after the ball is released from his hands. What is the speed of the ball? The speed of the sound is 340 m/s.
Physics
1 answer:
kobusy [5.1K]3 years ago
6 0
  <span> The ball takes 15/V secs to reach the pin since T=D/V. so there for the  Sound takes 15/340 secs to reach the bowler. The total time enlapsed then is 15/V + 15/340 = 2.10 So 15/V =2.1 -15/340
V = 7.296 m/s </span>
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A housekeeper is cleaning the kitchen and decides to to use a ladder to reach a top shelf. As he/she is cleaning he/she is start
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The amount of gravitational force between both objects will be the same.

The magnitude of the Earth's gravitational force exerted on the housekeeper is calculated by applying Newton's second law of motion;

F = mg

where;

<em>m </em><em>is the mass of the housekeeper</em>

<em>g </em><em>is acceleration due to gravity</em>

According to Newton's third law of motion, action and reaction are equal and opposite.

The force exerted on the housekeeper by the Earth is equal in magnitude to the force exerted on the Earth by the housekeeper.

F_{H} = - F_{E}

The two forces are equal in magnitude but opposite in direction.

Thus, the correct option is " the amount of gravitational force between both objects will be the same"

<em>The</em><em> missing part</em><em> of the </em><em>question </em><em>is below:</em>

a. the Earth exerts the largest amount of gravitational force

b. the housekeeper exerts the largest amount of gravitational force

c. the amount of gravitational force between both objects will be the same

Learn more about Newton's third law of motion here: brainly.com/question/15507

3 0
2 years ago
Reese can run 10 meter in 5 seconds.What is her speed?
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2 meters per second

Explanation:

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3 years ago
A magnetic field is uniform over a flat, horizontal circular region with a radius of 2.00 mm, and the field varies with time. In
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Answer:

0.00016391 V

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Explanation:

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Induced emf is given by

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The magnitude of the induced emf is 0.00016391 V

B_i=+1.5\ T

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\varepsilon=\frac{d\phi}{dt}\\\Rightarrow \varepsilon=\frac{A(B_f-B_i)}{dt}\\\Rightarrow \varepsilon=\frac{\pi 0.002^2(-0.5-1.5)}{0.065}\\\Rightarrow \varepsilon=-0.00038665\ V

The magnitude of the induced emf is 0.00038665 V

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Answer:

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