What happens to the peak wavelength in the blackbody spectrum as the temperature of a star increases? A) The peak wavelength decreases.

B) The peak wavelength decreases and then increases.

C) The peak wavelength doesn't change.

D) The peak wavelength increases.

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

The speed of light can be used to measure the