A mechanic pushes a 3.00 ✕ 103-kg car from rest to a speed of v, doing 4,680 j of work in the process. during this time, the car moves 26.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

How does the food coloring behave?

Which of the following accurately shows how to calculate the weight of a 20 kg object? A) 20 Kg x 9.8m/s2 B) 20 Kg / mass of the earth C) 20 kg/9.8 m/s2 D) 20 kg x mass of the earth

In which activity is no work done? A. lifting a book B. holding a brick C. climbing stairs D. pushing a shopping cart

A galvanometer has full scale deflection current of 500 micro-Ampere, and resistance of 100 Ohm. Shunt with what resistance has to be combined with the galvanometer in order to transform it to an ammeter able to measure current of 10 Ampere full

Which answer best describes Earth's atmosphere

A change from one form of energy into another is called a. gravitational potential energy. b. work. c. conservation of energy. d. an energy transformation

4. An airplane must achieve a velocity of 71 m/s for takeoff. If the runway is 1000 m long, what must the acceleration be?

As the average kinetic energy of the particles in a gas increases, which of the following occurs?

Power=170 watts time=20 seconds

What is the charge of alpha, beta and gamma rays?