A transformer is a device that has a primary and secondary coil and is used to change the voltage of electric current. True or False

If the bar magnet is flipped over and the south pole is brought near the hanging ball, the ball be 1) I'am not sure 2) Unaffected by the magnet. 3) Attracted to the magnet 4) Replaced by the magnet.

Imagine that a beam of blue light has hit its wavelength

A bird sits on a branch. It takes off, accelerating at 1.1m/s/. If it travels for 2s, how far has it gone

You bring a negatively charged rod close to some tiny pieces of plastic. Some of the pieces jump up to the rod, but as soon as they make contact, they immediately fly away from the rod. Explain.

What is the currency for performing work and what is its unit?

During a transit, a passes in front of its parent star, temporarily decreasing the star's brightness by a small amount.

Windmill energy transformation

The US Bureau of Labor Statistics predicts that the demand for computer support and network specialists will grow somewhat slower than job growth in the US economy in the next 10 years. A) TrueB) False

What type of organic molecule is this?

Select the correct answer. Which statement best explains that sound waves are pressure waves? A. Sound waves have regions of compressions and rarefactions. B. Sound waves cannot propagate through metals. C.