What's the difference between (mu k) and (mu s)

The current in a hair dryer measures 23 amps. The resistance of the hair dryer is 11 ohms. What is the voltage?

A 25.0-meter length of platinum wire with a cross-sectional area of 3.50 * 10^-6 meter^2 has a resistance of 0.757 ohm at 20°C. Calculate the resistivity of the wire. [Show all work, including the equation and substitution with units.]

The scientists tested a hypothesis on running in the rain performed only one controlled experiment that supported their hypothesis. Can their supported hypothesis be called a theory?

Which of Newton's laws of motion relates to the force pairs that are described by the law of universal gravitation? A) First B) Second C) Third D) Fourth

What is the theoretical volume of 10mL of an ideal gas at absolute zero?

Suppose a body has a mass of 60 kilograms and a velocity of 2 meters per second upward. What is the linear momentum?

Reflection and abssorption prevent some

Why is it important to change only one experimental variable at a time in an experiment?

A 0.0663 kg ingot of metal is heated to 241◦C and then is dropped into a beaker containing 0.395 kg of water initially at 25◦C. If the final equilibrium state of the mixed system is 27.4 ◦C, find the specific heat of the metal.

What does it mean when we say an atom has decayed?