Which sSelect the correct answer. tatement is true if the refractive index of medium A is greater than that of medium B?

Ssume that the kinetic energy of the falling block is transformed entirely into internal thermal energy when the falling block stops. what is the change in the internal energy, δu, of the system? δu =

Which color in the visible spectrum has the highest frequency?

Suppose you mix food coloring in water to make it blue. Have you made a solution or a suspension?

How is the wavelength of a longitudinal wave determines?

A technician is working on an MRI machine. To test it, the technician turns on the MRI machine that produces a strong magnetic field, but then he accidentally drops a screwdriver in this magnetic field.

Using Hooke's law, Fspring=kΔx, find the elastic constant of a spring that stretches 2 cm. when a 4 Newton force is applied to it. A) 1/2N/cm B) 2N/cm C) 4N/cm D) 8N/cm

The outer planets are small, rocky planets with iron cores. True or False

A car is traveling 15m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. what is it's acceleration?

Una pelota de béisbol es arrojada verticalmente hacia arriba desde la azotea de un edificio con una velocidad de 20m/s.

Suppose you had one circuit with a 9V battery connected to two 100 ohm light bulbs in series. and a second circuit with a 9V battery connected to two 100 ohm light bulbs in parallel.