Why life is often referred to as carbon based

What minimum radius must a large conducting sphere of an electrostatic generating machine have if it is to be at 20000 V without discharge into the air? How much charge will it carry?

In a test run, a certain car accelerates uniformly from zero to 24.0 m/s in 2.95 s. (a) What is the magnitude of the car's acceleration? (b) How long does it take the car to change its speed from 10.0 m/s to 20.

A light bulb, a fan, and a tiny speaker are connected to a battery in a series circuit. How will the circuit behave if it is open? A) None of the devices will work. B) The battery will heat up and explode.

Two objects attract each other with a gravitational force of magnitude 9.20*10^-9 N when separated by 19.2 cm. If the total mass of the objects is 5.01 kg, what is the mass of each?

1.) In the circuit shown a current of 0.45 A will pass through which of the following resistors? R2 R1 R3 R4 2.) Which of the following statements is true about the circuit shown? I1>I2>I3 I1>I3>I2 I1=I2=I3 I2>I3>I1

The horsepower unit is commonly used to indicate the power rating of household appliances.

A 50.9 kg box initially at rest is pushed 5.65 m along a rough, horizontal floor with a constant applied horizontal force of 247.25 N. If the coefficient of friction between box and floor is 0.466, find the work done by the applied force.

Which of the following best defines absolute threshold? A. The presence of stimulus for detection. B. The absence of stimulus from detection. C. The weakest amount of stimulus one can detect. D. The greatest amount of stimulus one can detect.

Liquid hazardous wastes are blended in a CSTR to maintain a minimum energy content before burning them in a hazardous waste incinerator. The energy content of the waste currently being fed is 8.0 MJ/kg (mega - joules/kilogram).

Explanation's of E=MC²