Explain why incandescent light bulbs are not energy efficient? Also use the words heat energy, electricity energy, light energy.

Imagine you can take all the atoms in a single drop of water and put them on a single line as closely packed as they can be. How long would that line be in meters? There are approximately 1022 atoms in a droplet of water.

Suppose you push horizontally with precisely enough force to make the block start to move, and you continue to apply the same amount of force even after it starts moving. Find the acceleration a of the block after it begins to move.

Which of the following components of an electrical circuit is generally used to connect all other components? A. a wire B. a battery C. a resistor D. a light bulb

A car travels at uniform acceleration over a tine interval of 20.0s. its initial velocity is 11.0m/s and its final velocity is 33.0 m/s. what distance did it travel during this time? 880m 220m 440m 50m

An object's resistance to change in motion is dependent solely on what quantity

All matter we encounter in everyday life exists in one of three physical formss True or False.

15 grams of liquid plastic are frozen in a physical change that increases the volume. What can be known about the plastic after the change?

A Car is lifted a certain distance in a service station and therefore has potential energy relative to the floor. if it was lifted twice as high, how much potential energy would it have?

How long does it take a 750-w coffeepot to bring to a boil 0.75 l of water initially at 11°c? assume that the part of the pot which is heated with the water is made of 280 g of aluminum, and that no water boils away?

An electric motor rotating a workshop grinding wheel at a rate of 151 rev/min is switched off. Assume constant angular deceleration of magnitude 2.23 rad/s 2. Through how many revolutions does the wheel turn before it finally comes to rest