I need help I don’t know how to do this type of problem During an emergency stop, a 1.5 x 10^3-kilogram car lost a total of 3.0 x 10^5 joules of kinetic energy. What was the speed of the car at the moment the
brakes were applied? *

A. 10 m/s

B. 14 m/s

C. 20 m/s

D. 25m/s

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a. m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.