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Physics

Zander Rogers

Find the radian measure of the central angle of a circle of radius 14 feet that intercepts an arc of length 9 ft.

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Physics

Makhi

How much work can you do using a 600 watt stove and oven for 10 minutes

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Physics

Lindsay Rollins

An ocean-going research submarine has a 10-cmcm-diameter window 8.6 cmcm thick. The manufacturer says the window can withstand forces up to 1.2*106 NN. What is the submarine's maximum safe depth?

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Physics

Fiona Cline

Tom kicks a soccer ball on a flat, level field with initial speed 20 m/s at an angle 35 degrees above the horizontal. (1) How long will the ball stay in the air (2) Max height will ball attain (3) How far away from tom will the ball land (4) what speed will the ball have in the instant just before it lands

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Physics

Samson Christian

A 100 kg vehicle moving at 20 m/s stops when the brakes are applied. What deceleration and braking force is required to stop it:

Part A) 5 seconds

Part B) 20 seconds

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Physics

Thalia

How does a convection current circulate a fluid?

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Physics

Devin Navarro

A puck of mass m = 0.085 kg is moving in a circle on a horizontal frictionless surface. It is held in its path by a massless string of length L = 0.72 m. The puck makes one revolution every t = 0.45 s. Part (a) What the magnitude of the tension in the string, in newtons, while the puck revolves?

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Physics

Zara Nunez

When heat is added to an object, what is happening to the item at the atomic level? (Check all that apply)

The atoms in the structure are vibrating more.

The atoms begin breaking apart.

The atoms begin to move more.

The chemical bonds between atoms are broken.

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Physics

Marcelo Miranda

What does the force of gravity on an object depend on?

the objects' mass and distance between the objects

charged particles

molecules and temperature

compounds and elements

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Physics

Bailey Norman

The sides of a rectangle are 6.01 m and 12 m. Taking significant figures into account, what is the area of the rectangle? A 72.1 m2B 72 m2C 72.12 nrD 72.00 m2

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Physics

Angelina

The total circuit resistance is 6½ ohms. If a second 6½-ohm resistor is placed in parallel with the first, the total circuit resistance

A. Increases

B. Remains constant

C. Decreases

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Physics

Micah Vance

Which of the following statements is true?

1. The 2s orbital in the hydrogen atom is larger than the 3s orbital also in the hydrogen atom.

2. The hydrogen atom has quantized energy levels.

3. The Bohr model of the hydrogen atom has been found to be incorrect.

4. An orbital is the same as a Bohr orbit.

5. The third energy level has three sublevels - the s, p, and d sublevels.

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Physics

Jayvion Odonnell

How far can light travel in "the blink of an eye"? (1/3s)

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Physics

Guest

Which of the following elements do living things have that volcanic rocks don't have? A) Oxygen B) Silicon C) Magnesium D) Carbon

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Physics

Cade Lin

a glass rod obtains a positive chartge from being rubbed by silk. Is this due to the glass gaining protons, or losing electrons?

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