An air track cart with mass m and speed v moving along an air track collides with a stationary cart with a mass m/3. After the collision the first cart has a speed v/2. What is the speed of the second cart?
What will be an ideal response?
3v/2
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A closed vial of gas is heated with a flame.
C. Consistent D. Inconsistent
A block is dragged without acceleration in a straight-line path across a level surface by a force of 6 N. What is the force of friction between the block and the surface?
A) less than 6 N B) 6 N C) more than 6 N D) need more information
An automobile engine operates with an overall efficiency of 12%. How much energy is delivered as waste heat (in gallons of gasoline) for each 10 gallons of fuel burned?
A. 1.2 B. 8.8 C. 6.5 D. 4.7 E. 7.5
Gas in a container increases its pressure from 1 atm to 3 atm while keeping its volume constant. Find the work done (in J) by the gas if the volume is 5 liters
a. 0 b. 3 c. 5 d. 15 e. 15 × 10^2