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Physics

Tobias Khan

across a rough, horizontal surface. The chair's mass is 18.8 kg. The force you exert on the chair is 165 N directed 26 degrees below the horizontal. While you slide the chair a distance of 6.00 m, the chair's speed changes from 1.30 m/s to 2.50 m/s. Find the work done by friction on the chair.

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Physics

Kamari Cross

A 5nC charge is placed at the origin of our coordinate system. There are three other charges; 5C located 3m in the positive i direction, 2C located 2m in the negative i direction, and - 4C located 5m in the positive j direction. What is the net force acting on the 5nC charge?

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Physics

Callie Sullivan

Suppose a force of 100 n is used to push an object a distant of 5.0 m in 15 seconds. Find the work done and the power done in this situation.

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Physics

Araceli Watson

How do organisms use cellular respiration and fermentation to survive?

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Physics

Jadyn Donovan

You decide to redo Galileo's inclined plane experiment. On the shelf in your pantry you find two cans of soup that are equal in size and weight. One is chicken broth and the other is cream of mushroom. You decide to use these for the experiment. You start both cans from rest at exactly the same location, but find that one can consistently rolls down the plane with a faster time. Explain what is going on. Which can is always faster and why? (You can, of course, try this experiment at home.)

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Physics

Nathaly Choi

An ___ wave carries energy through matter

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Physics

Tata

In automatic response to a stimulus is called a reflex

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Physics

Aaron Pennington

Who invented evolution?

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Physics

Brynlee Nelson

A puppy weighing 3 kilograms races through the dog park. if she slows from a speed of 2 meters/second to 1 meter/second, what will happen to her kinetic energy? use the kinetic energy equation.

a. her kinetic energy decreases to 1.5 j

b. her kinetic energy increases to 1.5 j

c. her kinetic energy remains unchanged

d. her kinetic energy decreases to 1 j.

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Physics

Emilio Benton

Which type of material would be best to use for construction in an area prone to earthquakes? concrete brick wood stone

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Physics

Keely Parrish

If a car is moving along the highway at a constant speed of 50 m/s, is there an unbalanced force acting on the car? How do you know? Explain using one of Newton's Laws.

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Physics

Lucian Branch

If a sprinter has an average acceleration of 9.5 m/s2, how long does it take for the person to go from rest to 10 m/s

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Physics

Valeria Riddle

If the average velocity of a duck is zero in a given time interval, what can you say about the displacement of the duck for that interval?

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Physics

Lilianna

How much power can I generate while lifting a mass for 30 seconds?

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Physics

Emmanuel Ross

A car is idling at a stoplight. When the light turns green, the car takes 12 seconds to accelerate to 18.7 m/s. What is the average acceleration of the car?

0.64 m/s2

1.6 m/s2

-0.64 m/s2

-1.6 m/s2

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