What is a complete wave?

A cubical water tank with edges measuring 10 feet in length is initially full of water. If the tank were then to lose water at a constant rate of 10 cubic feet per second, in how many seconds would the tank be full?

A 160.0 km long electric power line made out of copper is installed during the Spring months at an average temperature of 10.2 °C. 1) What is the change in the length of the power line on a hot summer day, when the temperature is 32.

If the kinetic energy possessed by a man of 50kg is 625J, the speed of man is

What is your mass in kilograms? in grams?

Calculating Orbital Period The Hubble Space Telescope (HST) orbits 569 km above Earth's surface. If HST has a tangential speed of 7,750 m/s, how long is HST's orbital period? The radius of Earth is 6.38 * 106 m.

How many layers of material were the roads made of? a. two c. four b. three d. five

Red light has a shorter wavelength than yellow light.

Approximately what is the parallax angle of a star that is 20 light-years away?

If the Earth and distant stars were stationary (motionless) in space, what would we observe about the wavelength from these stars? A. Wavelengths measured would match the actual wavelengths emitted. B.

Two fire trucks with sirens speeds towards and away from an observer. Which statement is true involving the Doppler effect observed by the observer?