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Physics

Kasen Brennan

If a man walks 17m east and then 17m south, the magnitude of the man's displacement is

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Physics

Ezra Underwood

Which type of mass movement makes a pattern of wrinkles, or terraces, on hillsides?

landside

mudflow

soil creep

rock slide

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Physics

Ariana Odonnell

How is sun related to nuclear, electromagnetic, and heat energy?

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Physics

Anabelle Briggs

Studies of gymnasts show that their high rate of injuries to the Achilles tendon is due to tensions in the tendon that typically reach 12 times body weight. That force is provided by a pair of muscles, each exerting a force at 23 ∘ to the vertical, with their horizontal components opposite.

For a 53-kg gymnast, find the force in each of these muscles.

Express your answers using two significant figures separated by a comma.

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Physics

Jewel Montes

The total mechanical energy of a system: A) can never be negative. B) is constant, if only conservative forces act. C) is either all kinetic energy or all potential energy, at any one instant. D) is not uniquely determined for most naturally occurring systems. E) is equally divided between kinetic energy and potential energy.

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Physics

Jolie Gardner

If the torque on an object adds up to zero: A) the object could be accelerating linearly but it could not be turning. B) the object is at rest. C) the object cannot be turning. D) the object could be both turning and accelerating linearly. E) the forces on it also add up to zero.

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Physics

Aubree Foster

What to do if vehicle struck by lightning

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Physics

Kimberly Conrad

If a soundproof door is almost shut but still leaves a small opening, what wave phenomenon is responsible for someone being able to hear sound from the room while standing by the wall to the side of the opening?

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Physics

Gideon

What is the name given to

the system of units use

the united States?

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Physics

Gage Washington

The average distance to the stars that make up the constellations in the night sky around the sun is about

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Physics

Kaliyah Meza

What happen when a light from the sun passes through any type of matter

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Physics

Brisa Faulkner

A projectile is launched at ground level with an initial speed of 53.0 m/s at an angle of 35.0° above the horizontal. It strikes a target above the ground 2.50 seconds later. What are the x and y distances from where the projectile was launched to where it lands?

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Physics

Dylan Lowe

A 2650-lb car is traveling at sea level at a constant speed. its engine is running at 4500 rev/min and is producing 175 ft-lb of torque. it has a drivetrain efficiency of 90%, a drive axle slippage of 2%, 15 - inch-radius wheels, and an overall gear reduction ratio of 3 to 1. if the car's frontal area is 21.5 ft 2, what is its drag coefficient?

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Physics

Pugsley

How many valence electrons are in alkali metals

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Physics

Billy

Who is given credit for recognizing that elements are the basic building blocks of matter? A. John Dalton B. Dmitri Mendeleev C. Niels Bohr D. Charles Darwin

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