A cold block of metal is placed in contact with a warm block of metal. Which type of energy will be transferred between the blocks?

thermal energy

chemical energy

electrical energy

mechanical energy

If a platinum wire has a resistance of 15 Ω and is connected across the terminals of a 3.0 V flashlight battery, how much current is in the wire? 1.0 amps 5.0 amps 7.5 amps 0.20 amps

The frequency of a sound wave is commonly called

What is the main purpose of the organ system shown above? A) receives stimuli, integrates information, and directs the body B) transports nutrients, gases, hormones, and wastes through the body C) provides support for the body and protects delicate

Why do you think it is so important that all evidence be identified (such as marking the bullets and tagging firearms) ? What consequences might result if these procedures were not followed?

If the solution described in the introduction is cooled to 0 ∘c, what mass of kno3 should crystallize? enter your answer numerically in grams.

Which of the following are likely to be affected by a magnet? Check all that apply. A. A DVD B. A credit card C. An access card you scan for entry into a building D. A CD

Albert Einstein first hypothesized that a large object, such as a planet, bends the space around it. This hypothesis became part of the theory of relativity, which is about how objects affect the space and time around them.

Explain how high-pressure and low pressure systems are different

How many gallons are in a cubic gallon?

A 3 kg toy car with a speed of 7 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 5 m/s. If the cars are locked together after the collision with a speed of 2.20 m/s, how much kinetic energy is lost?