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Dominik [7]
3 years ago
13

A campus bird spots a member of an opposing football team in an amusement park. The football player is on a ride where he goes a

round at angular velocity w at distance R from the center. The bird flies in a horizontal circle above him. Will a dropping the bird releases while flying directly above the person's head hit him? Ignore air resistance.
Physics
1 answer:
kenny6666 [7]3 years ago
6 0

Answer:

No..

Explanation:

As the bird releases the drop there is no internal force which will drive it into circular path but it will fall on tangent of the arc at the point of release because it has a tangential velocity same as bird. Path will be parabola in vertical plane.

As the person is on circular arc constantly moving it will never meet that drop.

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the temperature of a 2.0-kg increases by 5*c when 2,000 J of thermal energy are added to the block. What is the specific heat of
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To calculate the specific heat capacity of an object or substance, we can use the formula

c = E / m△T

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m as mass and
△T as the energy change.

Now just substitute the numbers given into the equation.

c = 2000 / 2 x 5
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What is used to create the sequential order of elements?
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Atomic Number
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How does a substance's temperatura chanté when the average kinetic energy of its particles increases? When it decreases?
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The opposite is also true. The less something moves, it will have less Kinetic energy and the colder it will get. 

If you're having trouble understanding this, think of it like how the particles in water move compared to how the particles in ice move. The particles in water are free flowing and can move wherever they want. If they get colder, they won't move as much, and eventually they'll stop flowing around, forming a solid and staying colder than the water will get.
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Maxwell shoots a rubber band at his friend Jimmy. Which type of energy is converted into kinetic energy?
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3 0
3 years ago
1500 kg wrecking ball traveling at a speed of 3.5 m/s hits a wall that does not crumble but is pushed back 75 cm. If the wreckin
Rudiy27

Answer:

The size of the force that pushes the wall is 12,250 N.

Explanation:

Given;

mass of the wrecking ball, m = 1500 kg

speed of the wrecking ball, v = 3.5 m/s

distance the ball moved the wall, d = 75 cm = 0.75 m

Apply the principle of work-energy theorem;

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F is the size of the force that pushes the wall

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Therefore, the size of the force that pushes the wall is 12,250 N.

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