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Roxie
Physics
What happens to the volume of gas when the temperature drops?
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What happens to the volume of gas when the temperature rises?
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Lilyana Guerra
Physics
Can an object be in mechanical equilibrium when only a single force acts on it? explain.
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Jaycee Mcintyre
Physics
Energy is never created or destroyed. it is just transferred and transformed. what happens to the energy after you use it?
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Brooklyn Riley
Physics
Which contribution did Kepler make to viewing the solar system?
He proposed that gravity kept the planets in their orbits.
He proposed the sun-centered model of the solar system.
He showed that planets moved in elliptical orbits.
He proposed the earth-centered model of the solar system.
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Kayden Booker
Physics
A 70 kg person lands on firm ground after jumping from a height of 3 m. What is the average force (in N) exerted on her feet by the ground if she bends her legs as she lands so that her body moves 50 cm during the impact? In other words, the change in her velocity as she comes to a stop occurs over a distance of 50 cm. You may assume that her acceleration is constant over the 50 cm.
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Jaycee Bolton
Physics
When using nitrogen in repairing a sealed refrigeration system the nitrogen tank should always be equipped with a:?
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Camila Watts
Physics
When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this?
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Missie
Physics
according to Bob, on earth, it is 20 ly to planet y. anna has just passed earth, moving at constant speed v in a spaceship. when anna passes planet y, she is 20 years older than when she passed earth. calculate v
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Cristopher Duarte
Physics
Add my sc if you want to make a friend:
aavahudsonn
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Shaniya Lloyd
Physics
A force of 100 newtons was necessary to lift a rock. a total of 150 joules of work was done. how far was the rock lifted
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Rory Cannon
Physics
Fossil fuels currently account for the majority of the world's energy use because they are A. renewable energy resources. B. distributed evenly throughout the world. C. relatively inexpensive and readily available. D. nonpolluting.
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Zayne Hughes
Physics
A book is sitting on a table at rest. Which of the following best describes the forces acting on the book?
A.
The forces on the book are unbalanced because the gravity pushing up on the book is not equal to the friction from the table pushing the book to the right.
B.
The forces on the book are unbalanced because the gravity pushing down on the book is not equal to the force of the table pushing up on the book.
C.
The forces on the book are balanced forces because the gravity pushing up on the book is equal to the friction from the table pushing the book to the right.
D.
The forces on the book are balanced because the gravity pulling down on the book is equal to the upward force applied by the table.
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Emerson Mitchell
Physics
The earth's magnetic field extends:
A-from the earth's core to outer space
B-from the center of the earth to the sun
C-from the earth's surface to the upper atmosphere
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Parker Collins
Physics
A 4-kg ball has a momentum of 12 kg∙m/s. what is the ball's speed?
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Rayne Benton
Physics
What kind of electromagnetic radiation has the shortest wavelength?
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