A weightlifter raises a 200 kg barbell with an accelaration of 3m/s2. how much force does the weightlifter use to raise the barbell?

What are the theoretical properties of a gas at a temperature of 0 kelvin?

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Positrons are spontaneously emitted from the nuclei of