A 300-A·h battery can deliver how many coulombs starting from a full charge?

a. 4.8 × 10^3 b. 4.3 × 10^4
c. 7.2 × 10^5 d. 1.1 × 10^6


d

Physics & Space Science

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Explain the purpose of white space in design. How do you create it? Is it always white?

What will be an ideal response?

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The coefficient of static friction for the tires of a race car is 0.950 and the coefficient of kinetic friction is 0.800. The car is on a level circular track of 50.0 m radius on a planet where compared to Earth's . If the car is to be able to travel at the same speed on the planet as on Earth, the radius of the track on the

planet must be ____ times as large as the radius of the track on Earth. A. 0.250 B. 0.500 C. 1.00 D. 2.00 E. 4.00

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Which of these are good insulators?

A) feathers B) wood C) snow D) all the above E) none of the above

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Petra pushes a crate across a rough floor. A frictional force of 28.0 N acts to oppose the motion of the crate, and Petra pushes with a horizontal force of 36.4 N. If the net work Petra does is 94.5 J, through what distance did she push the crate?

a. 11.3 m b. 3.38 m c. 2.60 m d. 2 650 m e. 3 440 m

Physics & Space Science