Initially sliding with a speed of 2.2m/s, a 1.8kg block collides with a spring and compresses it 0.31m before coming to rest. What is the force constant of the spring?

If an element has 6 electrons, how many of them will be in the 2nd energy level? How many neutrons does element X have if its atomic number is 54 and its mass number is 163? If element X has 106 protons, how many electrons does it have?

If the total dissipated power is to be reduced by 10%, how much should the voltage be reduced to maintain the same leakage current? note: power is defined as the product of voltage and current.

What is the force between two charged objects

The weight of the space shuttle is about 4.5 million pounds. How many people would it take to move it? Answer in units of people.

At a constant pressure and a temperature of 280 K, the gas in a cylinder has a volume of 10.0 liters. If the volume of the gas is increased to 20.0 liters, what is the new temperature? 2800 K 28 K 140 K 560 K

Why would an orange roll off your cafeteria tray if you stopped suddenly

Each shell is limited to a maximum of four electrons. True or False?

What is a hypothesis answer sentence for a lemon battery experiment

An object that is initially at rest on a frictionless floor is struck by a flying rock with an impulse jfonox. what is the final momentum of the object?

In a classroom, why can we hear the sound waves produced by the teacher talking?