A 2.44 x 10^3 kg car requires 5.3 kJ of work to move from rest to some final speed. During this time, the car moves 27.4 m.

Neglecting friction, find

a) the final speed

b) the net horizontal force exerted on the car

A race car driver must average 200km/hr for four laps to qualify for a race. Because of engine trouble, the car averages only 170km/hr over the first two laps. What is the average speed must be maintained for the last two laps

Fluorine, chlorine, bromine, and iodine are part of a family called a. noble gases. b. metalloids. c. halogens. d. alkali metals.

Two factors that affect force are: A. mass and weight B. friction and inertia C. strength and direction D. mass and strength

What is the wavelength of a 1-kilohertz (kHz) sound traveling in water?

True or False - Usain Bolt has perfect running technique when sprinting in the 100 M. True False

Which is the temperature at which a solid changes into a liquid?

What is the formula for velocity?

The 3.00 kg cube in fig. 15-47 has edge lengths d 6.00 cm and is mounted on an axle through its center. a spring (k 1200 n/m con - nects the cube's upper corner to a rigid wall. initially the spring is at its rest length.

A freight train traveling with a velocity of - 4. o m/s begins backing into a train yard. if the train's average acceleration is - 0.27 m/s^2 what is the trains velocity after 17s

How can we describe an atom