Alarge, cylindrical water tank with diameter 3.60 m is on a platform 2.00 m above the ground. the vertical tank is open to the air and the depth of the water in the tank is 2.00 m. there is a hole with diameter 0.520 cm in the side of the tank just above the bottom of the tank. the hole is plugged with a cork. you remove the cork and collect in a bucket the water that flows out the hole. part a when 1.00 gal of water flows out of the tank, what is the change in the height of the water in the tank?

The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)

Elements in group viiia (also known as group 18, or the noble gases) have similar properties because they all have a. the same number of electron shells b. full octets c. the same number of valence electrons d. the same number of electrons needed to fill their octet

How long will it take a car traveling of a constant speed of 45m/s to cover the distance of a 2.5km?