A thermometer measures its own temperature? What does it mean?

A 700-watt gasoline engine and a 300-watt electric mother. Which machine can do more work faster?

What is the magnitude and direction of the wall on the ball

Two carts connected by a 0.05 m spring hit a wall, compressing the spring to 0.02 m. The spring constant k is N 100 m What is the elastic potential energy stored from the spring's compression? Choose 1 answer: -3.0J -0.045 J 0.090 J 0.045 J

Potential difference of a battery is 2.2 V when it is connected across a resistance of 5 ohm, if suddenly the potential difference falls to 1.8V, its internal resistance will be

Dalton theorized that atoms are indivisible, but the discovery of particles changed this theory. scientists now know that atoms are made up of electrons, which have a charge; which have a positive charge; and, which are neutral.

Emily jogs 3 laps at the track to warm up. She jogs at 5 mph. Then she runs 3 more laps at 7 mph. What is true about her average speed and her average velocity?

Which of the following elements are the most reactive? beryllium, calcium, magnesium, barium?

1.) State which definition of power below is correct. A.) the energy transferred per hour. B.) the energy transferred. C.) the energy transferred per second. D.) the force over a distance. 2.

Science and technology are closely related, but not the same. Which of the following is most likely a result of technology, not science?

Ashlee pours some quantity of orange juice in a glass. She accidentally breaks the glass and juice spills all over the floor. Which characteristic of the juice will change? A. mass B. State C. Shape D. Volume