A student drives her car at 54.0 km/h along a level (horizontal) curve. The combined mass of the car is 1250 kg. If the

curve has a radius of 70.0 m, what centripetal force must be supplied by friction to keep the car from skidding?

What happens if you double the number of batteries used in a circuit? (Assume all of the batteries A. The current doubles only. o B. The voltage doubles only. C. The current decreases. D The voltage decreases. 0 E. The voltage and current doubles.

When the moon is waxing, it's lighted part appears

If a lamp has a resistance of 136 ohms when it operates at a power of 1.00 * ^2, what is the potential difference across the lamp?

An electric heater is heated at 250w the quantity of heat generated in 10 minutes will be ... what is its answer

Describe scalar and vector quantities. Include a definition and provide at least one example of how they are alike and how they are different.

A car traveled 176 miles on 6.4 gallons of fuel the car averaged how many miles per gallon

Which of these describes how heat is transferred by radiation? A.) Warm air rises and takes heat with it; eventually it cools and sinks. B.) Sunlight travels through space without the aid of fluids or solids. C.

A body is moving with a velocity of 12m/s and it comes to rest in 2 minutes, what was the acceleration?

How can you find magnitude of velocity from a displacement time graph of an object?

Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?