2 years ago

Hii please help i’ll give brainliest if you give a correct answer please

Physics

1 answer:

Gelneren [198K]2 years ago

8 0

Answer:

The answer is the They are equal and act in the oppisite directions

Explanation:

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The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf. t/f

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The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf is false. The kinetic energy on the shelf is zero because it is not in action.

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How much tension is in a rope if it pulls a 5-kg bucket filled with water with an upward acceleration of 1m/s^2

liraira [26]

F=ma
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T - 5(9.81) = 5 x 1
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In order for an object to accelerate (blank) must be applied.

yaroslaw [1]

Answer:

a force

Explanation:

a force causes a certain object to move and make a displacement.

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In his motorboat, Bill Ruhberg travels upstream at top speed to his favorite fishing spot, a distance of 120120 mi, in 33 hr.

photoshop1234 [79]

Answer:

The rate of the boat in still water is 44 mph and the rate of the current is 4 mph

Explanation:

x = the rate of the boat in still water

y = the rate of the current.

Distance travelled = 120 mi

Time taken upstream = 3 hr

Time taken downstream = 2.5 hr

Speed = Distance / Time

Speed upstream

$\frac{120}{3}=x-y\\\Rightarrow 40=x-y$

Speed downstream

$\frac{120}{2.5}=x+y\\\Rightarrow 48=x+y$

Adding both the equations

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The rate of the boat in still water is <u>44 mph</u> and the rate of the current is <u>4 mph</u>

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