A transformer supplies 60 watts of power to a device that is rated at 20 volts. The primary coil is connected to a 120-volt ac source. What is the current I1 in the primary coil

The area around a changed object that can exert a force on other charges objects is a (n) A) electric field B) field line C) conductor D) electric potential energy

he conversion factor relating miles to meters is 1mile=1610m1mile=1610m. The speed of light is 3.00*108 m/s3.00*108 m/s. How fast is this in miles per hour (miles/hmiles/h) ?

Consider the gravity of the four spheres. If we wanted sphere C to attract the other three spheres, what is one feature of sphere C we must change? A) Increase its mass. B) Make it less dense. C) Increase its diameter. D) Change its composition.

When a slice of buttered toast is accidentally pushed over the edge of a counter, it rotates as it falls.

If the cart has potential energy of 5,000 J and kinetic energy of 2,750 J. How much mechanical energy does the cart have?

A 1000-kg car is traveling north at 20.0 m/s. A 1500-kg car is traveling north at 36.0 m/s. The 1500-kg collides with the rear of the 1000 - kg car and they lock together.

9. (True or False) During an early morning rain shower, Jim could see a rainbow to the north as the sun's rays in the east broke through the clouds, illuminating the landscape.

Is sugarcane renewable or nonrenwable and why

during a crash, an airbag inflates to stop a dummys forward motion. the dummy mass is 75 kg. if the net force is on the dummy is 825 N toward the rear of the car, what is the dumys deceleration

A bike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. What is her acceleration? Select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2