Does the ear drum vibrates when struck by sound waves and directly sends a message to the brain that is then recognized as sound?

The side of the earth that faces the sun has

Students perform a probability experiment by throwing wads of a paper at a trash can 55.8 cm in diameter. What is the area of the trash can?

How much work will a truck with an output of 3000 N do if it travels a distance of 40 km?

Tech A says that tires are marked with a date code listing the date the tires should be discarded. Tech B says that any tires with a three-digit date code should be discarded because they are too old to be safely in service. Who is correct?

Why would tires have unitary elasticity while gasoline is inelastic?

What is the energy source that heats a contracting protostar?

What unit is kg divided by m/s^2

If the energy stored in the fully charged battery is used to lift the battery with 100-percent efficiency, what height is attained? Assume that the acceleration due to gravity is 9.8 m/s2m/s2 and is constant with height

How does the mass of an astronaut change when she travels from earth to the moon? how does her weight change?

If an object has a mass of 20 grams and a volume of 40 cm3, what is its density in g/cm3?