What will happen when two identical waves that are out of phase with each other combine?

An astronomer would most likely use the doppler effect to question 12 options: 1) measure the color of a star. 2) measure the parallax of a star. 3) measure the brightness of a star. 4) measure the shift in the emission spectrum of a star.

Geneva says that the only thing that is needed for people to hear the sounds around us is a vibrating object

Goal posts at the ends of football fields are padded as a safety measure for players who might run into them. How does thick padding around the goal post reduce injuries to players?

2. How does the electrical force relate to the charge of an object? a. It is inversely proportional to the square of the charge. b. It is directly proportional to the square of the charge. C. It is inversely proportional to the charge. d.

Which of the following instruments can detect the presence of a voltage, but not the voltage level? a. Neon circuit tester b. Multitester c. Wattmeter d. Clamp-type meter

The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m3. Convert this volume to liters and express the result in standard exponential notation?

What landform is created when magma squeezes between rock layers to form a hardened slab of rock? a. volcanic neck b. dike c. lava plateau d. sill

A 200 N wagon is to be pulled up a 30 degree incline at constant speed. how large a force parallel to the incline is needed if friction is negligible?

The temperature of 1 m^3 of water is decreased by 10°C. If this thermal energy is used to lift the water vertically against gravity, what is the change in height of the center of mass?

If the net torque is zero, what does this imply about the clockwise and counterclockwise torques.