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Physics

Anne Hanna

15 grams of liquid plastic are frozen in a physical change that increases the volume. What can be known about the plastic after the change?

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Physics

Tiara Best

A Car is lifted a certain distance in a service station and therefore has potential energy relative to the floor. if it was lifted twice as high, how much potential energy would it have?

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Physics

Norah

How long does it take a 750-w coffeepot to bring to a boil 0.75 l of water initially at 11°c? assume that the part of the pot which is heated with the water is made of 280 g of aluminum, and that no water boils away?

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Physics

Serena Roy

An electric motor rotating a workshop grinding wheel at a rate of 151 rev/min is switched off. Assume constant angular deceleration of magnitude 2.23 rad/s 2. Through how many revolutions does the wheel turn before it finally comes to rest

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Physics

Donald Glover

1. What is the atomic number of an atom? Why is this number important? |

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Physics

Sasha Costa

The car travels down the road at 60mph for 1.5 hours. How far does it go?

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Physics

Destinee Goodwin

You are riding in an elevator on the way to the

eighteenthfloor of your dormitory. The elevator is accelerating

upwardwith a = 1.90 m/s2. Beside you is the

boxcontaining your new computer; box and contents have a total

mass28.0 kg. While the elevator is accelerating upward, you

pushhorizontally on the box to slide it at constant speed toward

thedoor. If the coefficient of kinetic friction between the boxand

elevator floor is mk = 0.32, what magnitudeof

force must you apply?

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Physics

Isis Lynch

Why is chopping carrots a physical change?

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Physics

Tristen Oconnell

What value would you divide 50 by in order to get grams to kilograms

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Physics

Malachi Velazquez

Organized elements into four groups based on properties

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Physics

Cody Houston

Microwave, radio signal, light, earthquake which does not belong

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Physics

Sterling Quinn

A 9.0-v battery is connected to a bulb whose resistance is 2.5 ω. part a how many electrons leave the battery per minute?

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Physics

Devin Simon

What is the basic unit of matter? atom cell bacterium molecule Description

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Physics

Jamison Salazar

A person fires a 38 gram bullet straight up into the air. It rises, then falls straight back down, striking the ground with a speed of 345 m/s. The bullet embeds itself into the ground a distance of 8.9 cm before coming to a stop. What force does the ground exert on the bullet? Express your answer in newtons.

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Physics

Karli Tate

Subject: Science

Why is it important to report experimental results honestly even when the results go against your hypothesis?

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