A small car weighing 1200 kg and traveling 45 m/s, hits a stationary truck with a mass of 1800 kg and becomes stuck together. What is the final velocity of the car and the truck in this inelastic collision?

A. The car will have a velocity of 45 m/s and the truck will have a velocity of O m/s
B. 18 m/s
C. O m/s
D. 30 m/s

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal

Vi. on another planet, a spring with constant 4.7 n/m is set up and allowed to expand verticaly freely. 8.4kg mass is placed on the spring and the spring extends 5.28m. calculate the exected extension on earth.