A conducting spherical shell of inner radius r1 and outer radius r2 has a charge Q on it. An additional charge, also Q, is then added to the sphere. What is the resulting charge per unit area on the outer surface of the sphere?

When 108 grams of water at a temperature of 22.5c is mixed with 65.1 grams of water at an unknown temperature, the final temperature of the resulting mixture is 47.9c. what was the temperature of the other sample of water?

In walking across a carpet, you acquire a net negative charge of 50 µC. How many electrons do you have?

How do we use Newton's second law of motion and the law of universal gravitation to solve problems that involve the orbital motion of satellites?

What is the name of the process the puts adenosine diphosphate (ADP) and phosphate (P) together to reform ATP?

Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is A. radiation. B. a stream of particles. C. a wave. D. heat.

The circumference of the Earth is approximately 40,000 km. The Earth has a magnetic field that protects it from solar particle radiation. The major element comprising the solid inner core of the Earth is iron. The Earth is approximately 4.

A capacitor with the capacitance constant C has a charge of Q and a potential difference of V. If the charge is reduced to Q and the potential is increased to 2V, what is the new capacitance? 2c 4c

4. The blades on a fan have a frequency of 15 Hz. a) How many cycles do the blades complete in five minutes? b) What is the period for the fan blades? c) How long would it take for the fan blades to complete 100 revolutions?

What will happen to the soccer ball as it rolls down the ramp? The question is on science there isnt a choice for science

According to Newton's first Law of motion, it takes forces to be balanced to move an object from its resting position. True or False