How much electrical energy is used by a 350 W television that is operating for

25 minutes?

O

A. 21,000 J

O

B. 650,000 u

C. 8750 J

O

D. 525,000

Does observing a physical property of a substance change the identity of the substance? Explain your answer.

A force of 230 N applied on a hydraulic lift raises an automobile weighing 6500 N. If the applied force is exerted on a 7.0 m^2 piston, what is the area of the piston beneath the automobile? a. 2.0 x 10^2 m^2 b. 4.0 m^2 c. 0.25 m^2 d. 0.0050 m^2

A battery sits in an iPod before the iPod is turned on. Gravitational Chemical Elastic Electric

Which describes the molecular motion of a solid nickel marble rolled across the floor? A. the constant vibration of the nickel atoms that make up the marble B. the motion of the nickel atoms due to contact with the floor C.

During which stage of prophase i does crossing over take place?

How would you find the speed of a ball thrown in to the air - it takes 6 seconds to get tho the top. The height is not given.

If your vision somehow began to increase so that you could see higher and higher frequencies beyond visible light, what type of wave would you be able to perceive first?

Show that the units N/kg can be written using only units of meters (m) and second (s). Is this a unit of mass, acceleration or force.

How do the sun energy flow through the earth system

Which are precautions to take when working with heat and fire?