You replace a 40 w incandescent lightbulb with an 8 w led bulb. if you leave your lights on 24 hours a day, how much energy are you saving each day by replacing this bulb?

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?