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Physics

Jase Kaiser

A sound wave has a frequency of 192Hz and travels the length of a football field, 91.4m in 0.267s. What is the period?

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Physics

Simon Hinton

the wires inside a cable each have there own plastic insulation. why does the insulasion have diffrent colours

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Physics

Silas

An automatic dryer spins wet clothes at an angular speed of 5.2 rad/s. Starting from rest, the dryer reaches its operating speed with an average angular acceleration of 3.2 rad/s². How long does it take the dryer to come up to speed?

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Physics

Addison Farley

Which of the following is contained in a shovel?

inclined plane and a wedge

wedge and lever

wedge and pulley

pulley and inclined plane

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Physics

Blaine Harrison

Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below. Overlapping red and blue balls in the center with a circular fuzzy green cloud outside them. What experimental evidence led to the development of this atomic model from the one before it? A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil. Experiments with water vapor showed that elements combine in specific proportions. Equations were used to identify regions around the nucleus where electrons would likely be. Cathode rays were bent in the same way whenever a magnet was brought near them.

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Physics

Max Schaefer

A golf ball and an equal-mass bean bag are dropped from the same height and hit the ground. The bean bag stays on the ground while the golf ball rebounds. Which experiences the greater impulse from the ground?

a. The golf ball.

b. Not enough information.

c. The bean bag.

d. Both the same.

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Physics

Mora

Which of these planetary bodies was studied by Voyager 1?

A. Mars

B. Jupiter

C. Mercury

D. Pluto

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Physics

Maximilian

Formula for potassium phosphate

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Physics

Bass

Compare and contrast the properties of the terrestrial planets and the Jovian planets.

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Physics

Miracle Zuniga

Why are summers oftenmuch warmer than winters

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Physics

Riley Sexton

An object is dropped from rest into a pit, and accelerates due to gravity at roughly 10 m/s2. It hits the ground in 5 seconds. A rock is then dropped from rest into a second pit, and hits the ground in 10 seconds. How much deeper is the second pit, compared to the first pit?

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Physics

Riggs

Does the car traveling the longest time always travel the greatest distance? Why or why not?

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Physics

Jaydin Burke

During a storm, the power went out at Bailey's house. She had no electricity. What could she use as an alternate form of electrical energy?

A) candles

B) a fire in the fireplace

C) a battery-operated lamp

Eliminate

D) a light in the refrigerator

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Physics

Mariam Barry

A boat is heading due north on a river that's flowing directly east. What is the general direction of travel for this boat with respect to the land?

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Physics

Kaleb Odom

Which is the following is an example of chemical weathering

A) wind breaking into small pieces

B) ice breaking apart cracks into a rock

C) water smoothing a rock in the stream

D) minerals in rock becoming powerdy and rusty

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