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
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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?
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
Which of these are good insulators?
A) feathers B) wood C) snow D) all the above E) none of the above
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