Aforce of 200 n is required to keep an object sliding at a constant speed of 2 m/s across a rough floor. how much power is being expended to maintain this motion?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z