The temperature of a 50 g sample of aluminum is raised from 20°c to 60°c when 440 cal of heat are added. the specific heat capacity of the aluminum is

Scientists have estimated that the area of Earth covered by water is 70.98 percent, or 362,031,100 km^2. Express this value in scentific notation

A fully charged capacitor with a voltage of 120 v is discharged through a resistor. (a) what is the voltage across the capacitor at the end of three time constants?

Name THREE simple machine found in a ferris wheel

Nineteenth century English scientist Michael Faraday found that if he moved a magnet through a loop of wire, an electric current flowed in that wire. What process did Faraday discover? A. solenoid induction B. electromagnetic induction C.

What is electricity? A) the orbit of electrons around a nucleus B) the flow of positive electric charge C) the flow of negative electric charge D) the flow of electric charge

Which of Newton's laws of motion is demonstrated by a hammer pounding a nail into a board

Heated air molecules in a hot air balloon soon carried thermal energy to the top of the balloon. this is an example of ... conduction. Convection. Radiation. Cooling.

When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Which law of motion is being described in this scenario?

When attempting to solve a difficult problem, the best scientific approach would be to a. bring together a team of scientists with different backgrounds and perspectives to work together to find a solution to the problem. b.

When viewing a piece of art that is behind glass, one often is affected by the light that is reflected off the front of the glass (called glare), which can make it difficult to see the art clearly.