What would cause the frequency of an electromagnetic wave to decrease?

A. decreasing the amplitude

B. decreasing the wavelength

C. increasing the amplitude

D. increasing the wavelength

Is it 100% sur than electron have negative charg and proton have pasitive?

A horizontal force accelerates a cart of mass 200 kg from 0 to 30 m/s on a horizontal smooth surface. If the horizontal distance the force acts over is 12 m, what is the magnitude of the force?

A roller coaster car travels through a loop in 3.1 s with a centripetal acceleration of 26 m/s2. What is the radius of the roller coaster loop?

The cars salemens tells you that the car can go from a stopped position to 60 miles per hour in 6 seconds he is giving you the cars rate of what

Which statements describe the Mercalli scale? Check all that apply.

Traditional Indonesian music uses an ensemble called a gamelan that is based on tuned percussion instruments somewhat like gongs. In Bali, the gongs are often grouped in pairs that are slightly out of tune with each other.

An instrument used to detect a static electric charge is called an ammeter. a. true b. false

A heat engine has a cold reservoir of 250°C and a hot reservoir of 715°C. What is the efficienvy of the engine?

Which type of electromagnetic waves have longer wavelengths that the waves that make up visible light.

A charge of 11 mu or micro CC is 10 cm above the center of a square of side length 20 cm. Find the flux through the square.