A car has a mass of 850 kg. By pushing on the car, Evan increases its speed

from 3.5 m/s to 5 m/s. What impulse did Evan apply to the car?

Which factor most directly affects the flow of ocean currents? a. differences in pressureb) differences in temperaturec) earth's revolution round the sund) the moon's revolution round earth

Suppose a single light bulb burns out. How do you think this will affect lights that are strung along a single wire?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.

How many isotopes does argon have? explain how you determined this

A Sense of Proportion: Saturn is about 60,000 km in radius, and its rings are only about 0.01 km thick with ripples 100m high. Design a really big model with Saturn 60 inches in radius (10 feet in diameter).

Which organisms develop gills from pharyngeal arches and later develop lungs to breathe on land

How much energy (in joules) is required to evaporate 0.0005 kg of liquid ammonia to vapor at the same temperature?

It is 5.5 km from your home to the physics lab. As part of your physical fitness program, you could run that distance at 10 km/h (which uses up energy at the rate of 700 W), or you could walk it leisurely at 3.0 km/h (which uses energy at 290 W).

The largest volcanic structures on venus are called:

a block with a mass of 3 kg is swung on a cord in a horizontal circle with a radius of 2m. the speed of the block is 6m/s^. the magnitude of the acceleration of the block is most nearly