Please help :)

Ultra violet waves are about the size of ?

In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank