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Physics

Clare Solomon

Write an algebraic expression for the coefficient of kinetic friction for a block of mass m sliding down an incline of angle theta with respect to the horizontal with acceleration a. (type the formula out with the word (theta) for the angle. Make sure you are careful with your parentheses. You may use the following variables: m, a, g, (theta) and the sin, cos, and tan function

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Physics

Kendall Randolph

Tracy scuffs her socked feet across a carpet. When she touches a doorknob, she gets a small shock. How did Tracy become charged?

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Physics

Ezra Hartman

An object is thrown vertically upward with an initial velocity of 50 m/s. Find

a) the maximum height reached by the object.

b) the time taken to reach this height. (neglect the effect of air resistance).

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Physics

Dean Hall

Rounded to the nearest whole number what is the atomic mass of platinum?

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Physics

Enzo Booth

John has an object suspended in the air. it has a mass of 50 kilograms and is 50 meters above the ground. calculate the objects potential energy

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Physics

Dereon Rasmussen

Explain the electromagnetic spectrum. Give examples

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Physics

Seamus Robertson

What happens to the mass of a metal ball if its heated?

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Physics

Arabella Krueger

What would happen if everyone jumped at once?

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Physics

Kaia

An airplane cruises at 900 km/h relative to the air. It is flying from Denver, Colorado, due west to Reno, Nevada, a distance of 1200 km, and will then return. There is a steady 80 km/h wind blowing to the east. What is the difference in flight time between the two legs of the trip?

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Physics

Sanai Jimenez

On a bus traveling north at 20.0m/s, a child stands up and walks towards the back of

the bus at 1.3m/s. What is the child's resultant velocity?

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Physics

Kristin Wall

How do you think increasing the resistance in a circuit will affect the current in the wire

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Physics

Brenna Golden

A ball is tossed into the air from height of 8 feet with an initial velocity of 8 feet per second. find the time r (in seconds) it takes for the object to reach the ground by solving the equation - 16t + 8t + 8 = 0 you trimmed a large strip of wallpaper from a scrap to fit into the corner of a wall you are wallpapering. you trimmed 15 inches from the length

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Physics

Grey

A galloping pony speeds past you at 5 m/s. The frequency of the sound produced by the hooves on the dirt is 221 Hz. Assume the speed of sound to be 342 m/s. What is the observed frequency of the hooves after the pony has passed your position?

1. 218 Hz

2. 226 Hz

3. 216 Hz

4. 224 Hz

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Physics

Corinne Hodges

A stone dropped from the root of a high buliding. A second stone is dropped 1.30 s later How far apart are the stones when the second one has reached a speed of 14.0 m/s

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Physics

Conductor

What's a streak plate?

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