An airplane flies at 100km/h in still air. If it flies into a 10 km/h headwind, its groundspeed is

A) 100 km/h

B) 110 km/h

C) 120 km/h

D) 90 KM/h

A spherical source of sound radiates uniformly into a large volume of air at 25C and 101.3 kPa. The frequency of the sound wave is 274 Hz, and the acoustic power radiated from the source is 30mW.

Geothermal energy generation uses what kind of turbine?

What do you mean by the statement relative density of gold is 19.3

An alien spacecraft flies directly over a football stadium at a speed of 0.50c. if the proper length of the field is 100 yards, what field length is measured by the crew of the alien spacecraft?

Which sentence contains italicized words that are used as an infinitive phrase? A. Mark wanted to go, but not today. B. Tom went there for some flour. C. Jane parked her car behind a truck. D. Kelly went to the grocery store.

Ethylene (C2H4) reacts with oxygen gas to produce carbon dioxide and water. 45.0 grams of ethylene reacts, how many grams of carbon dioxide gas will be produced?

What causes ice to melt and water to boil

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.