When the instantaneous voltage and current in an ac circuit are in phase, we know that?

A 3-ohm resistor and a 6-ohm resistor are connected in parallel across a 9-volt battery. Which statement best compares the potential difference across each resistor?

According to the nebular theory of planet formation, which type of force was responsible for causing particles in the protoplanetary disk to clump and bind together, growing from soot-sized specks into boulder-sized blocks, and eventually into

4 ways the atmosphere can affect light?

The atoms in a solid move about freely

Why there is only 0.1% of the energy remaining at the 4th level of the pyramid of energy

A physics book slides off a horizontal tabletop with a speed of 3.90 m/s. It strikes the floor in 0.350 s. Ignore air resistance. Find the height of the tabletop above the floor.

A guitar string 66 cm long vibrates with a standing wave that has two antinodes. 1. Which harmonic is this 2. what is the wavelength

An RLC series circuit has an applied voltage of 240 volts. R = 48 Ω, XL = 100 Ω, XC = 36 Ω, and Z = 80 Ω. What is the voltage drop across the capacitor?

You are on an elevator that is plummeting toward the ground at 30 m/s and you jump up right before it hits the ground. you jump upward with a velocity of 5 m/s. at what speed do you hit the ground?

An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a straight line until it reaches a speed of 27 m/s. The vehicle then slows at a constant rate of 1.3 m/s2 until it stops.