A cop investigating the scene of an accident measures the length L of a car skid marks in order to find out its speed v at the beginning of the skid. Express v in terms of L and any other relevant variables.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Rohit is trying to tune an instrument

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer