Objects that are falling toward Earth in free fall move

a. faster and faster.

c. at a constant velocity.

b. slower and slower.

d. slower then faster.

When two or more waves are at the same place at the same time, which phenomena occurs

The sides of a rectangle are 6.01 meters and 12 meters. Taking the significant figures into account, what is the area of the rectangle?

The data below are taken from a test of a petrol engine for a motor car. power output 150 kW fuel consumption 20 liters per hour energy content of fuel 40 MJ per litre Which expression will evaluate the efficiency of the engine?

Which shows the order of mechanical advantage from least to greatest?

A monatomic ideal gas undergoes an isothermal expansion at 300 k, as the volume increased from 0.010 m3 to 0.040 m3. the final pressure is 130 kpa. what is the change in the internal (thermal) energy of the gas during this process? (r = 8.

What is the name of the test used to determine the relative refractive index between two materials? A) Griess test B) Becke line test C) medullary index D) gas chromatography

Um carro viaja de uma cidade A a uma cidade B, distantes 200km. seu percurso demora 4 horas, pois decorrida uma hora de viagem, o pneu dianteiro esquerdo furou e precisou ser trocado, levando 1 hora e 20 minutos do tempo total gasto.

Two pure tones are sounded together and a particular beat frequency is heard. What happens to the beat frequency if the frequency of one of the tones is increased?

Give one similarity between mass and charge

Animals have different types of respiratory systems depending on the environment of their habitat. Fish live in the water and use gills to breathe. Humans who live on land, breathe air through their lungs.