James Joule is credited to be the first to demonstrate a clear connection between mechanical work and heat.

a) True

b) False

A uniform wire is cut into 4 segments. Each segment is twice as long as the earlier segment. If the shortest segment has a resistance of 4 ohm, find the resistance of original wire.

If you exert a force of 700 N to walk 6m up a flight of stairs in 6s how much power do you lose?

How does the pKa values of an ionizable side chain compare when the amino acid is free versus when it is in a polypeptide chain?

A firm bills at the rate of $1.00 per 125 J of work. It bills you $45.00 for carrying a sofa up some stairs. Their workers moved the sofa up 3 flights of stairs, with each flight being 4.50 meters high. What is the mass of the sofa?

What is the overall charge of the wall?

I need this answered quickly. is the branch of science for naming and classifying organisms based on their natural relationships? A-physics B-taxonomy C-genetics D-biology

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?

A 500-kilogram sports car accelerates uni- formly from rest, reaching a speed of 30 me- ters per second in 6 seconds. What distance has the car traveled during the 6 seconds?

What is efficiencywhat is the formula of mechanical advantage and velocity ratio of labour

What is the wavelength of an ekectromagnetic wave that has a frequency of 40,000 hz? the speed of light is 3x10^8 m/s?