Calculate the current in a circuit whose total resistance is 4 ohms and whose emf is 12 volts.

0.3

3

5

50

If you have just combed your hair and you hold the comb near a small, uncharged object, what will most likely happen?

It takes a car 1.75 h to go from mile marker 115 what's the average speed of the car?

If the tube were filled with helium instead of air, how would your results change

Dźwig podniósł kontener o masie m = 80 kg na wysokość h = 10 m. Pierwsze 5 m kontener przebył z przy- spieszeniem o wartości a = 1 m/s2, a następne 5 m - ruchem jednostajnym. Przyjmij, że g = 10 m/s2.

An experimenter finds that standing waves on a string fixed at both ends occur at 24 Hz and 32 Hz, but at no frequencies in between. Part A What is the fundamental frequency

Suppose the gravitational force between two spheres is 100 N. If the distance between the spheres is halved, what is the new gravitational force between them?

Ilya and Anya each can run at a speed of 8.00 mph and walk at a speed of 3.20 mph. They set off together on a route of length 5.00 miles.

Jill is getting ready to push little Frank in his swing. She pulls Frank back as high as she can and then releases the swing. What is the initial transfer of energy that accelerates the swing when she lets go?

Which phenomenon generates electric current? A black body radiation B ultraviolet catastrophe C emission spectra D photoelectric effect

What is the product of 3.15 m and 2.006 m with the correct number of significant figures?