A resistor has a current of 2 amperes when connected to a single battery. If a second identical battery is connected in series with the first, what is the current through the resistor?

a) Still 2 amps

b) 4 amps

c) 1 amp

d) no current

How are step-up transformers used in the transmission of electrical energy? A They decrease the voltage before it leaves a power plant. B They increase the voltage for efficient long-distance transmission.

Describe what happens to pressure as the force exerted on a given area increases.

What is a bed load that a stream carries made up of?

Which statement best describes the motion of a mass on a spring

A cart is pulled by a force of 250 N at an angle of 35 degrees above the horizontal the cart accelerates at 1.4 m/s^2 what is the mass of the cart

A train travels 120 km in 2 hours and 30 minutes what is the average speed

How many constellations are there?

What units are given to the right of the equals sign

Vector has a magnitude of 5.2 units and is directed east. vector has a magnitude of 4.3 units and is directed 35° west of north. by constructing vector diagrams, find the magnitudes and directions of (a) and (b) 4. (a)

Which of the following has the greatest momentum? A - Truck with a mass of 2250 kg moving at a velocity of 25m/s B - car with a mass of 121010 kg moving at a velocity of 51 m/s C - truck with a mass of six 6120 kg moving at a velocity of 10 m/s