For the Doppler effect to occur?

4) A motorcycle travels at a constant 90 km per hour in the positive direction down a straight line highway. What is the displacement, in standard units, of the car 75 seconds later?

As earths plates move apart at some boundaries, they collide at others, forming

How many protons and neutrons are present in an atom of 3919k? express your answer as integers separated by a comma?

We measure the loudness of sound in decibels. a. True b. False

tessa bought stock in a restaurant for $287.00 her stock is now worth $401.80 what is the percentage increase of the value of Tessa's stock?

Soils are made up of mineral portion an organic portion air and water what is meant by the word organic Nonliving mineral in composition Composed of several organs Material that was produced by or was/is part of living organism Musics in nature

A car is traveling at 42.0 km/h on a flat highway. (a) If the coefficient of friction between road and tires on a rainy day is 0.107, what is the minimum distance in which the car will stop?

Usted arrastra los pies sobre un piso alfombrado en un día seco y la alfombra adquiere una carga positiva neta. a) Usted a deficiencia o 2) un exceso de electrones? b) Si la carga adquirida tiene una magnitud de 2.

In the bathroom of your house you would like to run a 360 W radio, a 60 W phone charger, a 960 W hair dryer, and three 120 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices?

To remove 700 j of heat from a refrigerator, the compressor in the refrigerator does 500 j of work. How much heat is released into the surrounding room