A steam engine absorbs

J and expels

J as heat, how much work is done?

A hollow glass sphere has a density of 1.30g/cm cubic at 20°C. Glycerine has a density of 1.26g/cm cubic at 20°C. At what temperature would the sphere begin to float in glycerine? Given coefficient of volume expansion of glycerine is 53 * 10^-5 / °C.

A container can hold a mass of 40 grams. If Jackson has a fake gold chain that has a density of 10 g/cm3 that occupies a space of 5 cm3, will the box be able to hold it? (D=M/V, V=M/D, M=DxV)

Explain why guitar strings of the same length have different pitches.

The diagram below shows the forces acting on a box. Describe the motion of the box. Calculate all forces

What is another name for marshes, estuaries and swamps?

A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same? Select one or more: a. delta V increases b.

Energy is observed in two basic forms: potential and kinetic. Which of the following correctly matches these forms with a source of energy? a. the heat released from a living organism: potential energy b.

What should you do when operating a boat in large waves and high wind?

A planetary nebula forms when the outer layers are expelled from which type of star?

During a medical condition screening lung capacity testing is a standard procedure. True of false