Acar travels for 90 mintutes at a speed of 60 mph . how far does it travel ? a. 120 mi b. 30 mi c. 90 mi d. 60 mi

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.