A piece of iron is heated and then cooled by dropping it in water. The heat lost by the piece would be higher if

How is a scientific theory different from a hypothesis?

If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them? from the hand to the cup from the cup to the hand from the cup to the surrounding air from the hand to surrounding air

Which circuit component is usually a device that uses electrical energy to to perform a certain function? A. wire B. power source C. load

If a 100Ib women walks up a flight of stairs to get to the top of a 100 meter building. How much work did she perform?

How can you connect four of them to produce an equivalent resistance of 0.25 kω?

How long does it take for light from a star that is 8 light years away to reach Earth? Question 7 options: 8 earth minutes 16 earth minutes 8 earth years 16 earth years

Why does water in hot springs always remain hot? Why doesn't it's thermal energy spread out?

True or false All forces are different; each exerts a particular type of effect on a object

The Yerkes refracting telescope has a 1.00 m diameter objective lens of focal length 20.0 m. Assume it is used with an eyepiece of focal length 2.50 cm. (a) Determine the angular magnification of the planet Mars through this telescope.

A small kid sits on a bike (Anita). A bigger and stronger person (Jamy) pushing the kid so that the kid starts speeding up. (neglect friction). Mark all correct statements about the forces between them. A.