A quarterback throws a football with angle of elevation 40degrees and speed 60ft/s. Find the horizontal and vertical components of the velocity vector

Why is magnitude of average velocity not equal to speed?

If the mass of an object is 44 kilograms and its velocity is 10 meters per second east, how much Kinetic Energy does it have?

What does 'payback time' mean?

What units do chemists normally use for density of liquids and solids? for gas density? explain the differences?

When is a hypothesis formed in the process of conducting an experiment?

If an atom has twelve electrons, how many electrons are in the n=1 energy level? how many electrons are in the n=2 energy level? how many electrons are in the n=3 energy level?

Which object is largest? star galaxy globular cluster planet?

What if the population of rabbits decrease, what would happen with foxes and owls?

An automobile having a mass of 2000 kg deflects its suspension springs 0.02 m under static conditions. Determine the nafural frequency of the automobile in the vertical direction by assuming damping to be negligible.

Samantha is checking the weather for her upcoming trip to Mexico City. The weather forecast predicts a high-pressure system for the four days of her trip. What kinds of conditions can she expect?