You drive a car 2.0 h at 40 km/h, then 2.0 h at 80 km/h. (a) What is your average velocity? km/h (b) Do you get the same answer if you drive 120 km at each of the two speeds above? no yes

A group of students put a ford focus in neutral and push the car with 500 N of force to the right, causing the car to travel a distance of 10 meters. How much work did the students do on the car?

Using an example, explain how small atoms are.

To convert 790 kg/m3 to g/cm3, 1,000 and 106. These operations reveal that the density of acetone in g/cm3 is.

Calculate the force on an object that has a mass of 12kg and an acceleration of 4m/s2

The total potential and kinetic energy of all the microscopic particles in an object make up its a. nuclear energy. b. thermal energy. c. electric energy. d. chemical energy.

True or False: If your gas pedal jams, you should turn the key to lock to lock the steering wheel.

Pylon cables in the National Grid have some resistance. Power (watts) = Current2 (amperes) x Resistance (ohms) Looking at the power equation above, can you explain why transmitting electricity at a very high voltage is beneficial?

A bicycle racer sprints near the end of a race to clinch a victory. The racer has an initial velocity of 12.1 m/s and accelerates at the rate of 0.350 m/s2 for 6.07 s. What is his final velocity?

The current in a wire increases from 5 A to 10 A, what happens to its magnetic field? The field is twice as strong the distance of a charged particle from a wire changes from 10 cm to 20 cm, what happens to its magnetic field?

At a constant pressure and a temperature of 280 K, the gas in a cylinder has a volume of 10.0 liters. If the volume of the gas is increased to 20.0 liters, what is the new temperature? 2800 K 28 K 140 K 560 K