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Three fire hoses are connected to a fire hydrant. Each hose has a radius of 0.025 m. Water enters the hydrant through an underground pipe of radius 0.096 m. In this pipe the water has a speed of 2.9 m/s. (a) How many kilograms of water are poured onto a fire in one hour by all three hoses? (b) Find the water speed in each hose

If the chemical energy stored in a 250-Calorie (1.0 × 106 J) energy bar were converted into the kinetic energy of a 2 200-kg car, what would be the speed of the car (assuming it started from rest)?

Coal is mostly carbon. Burning 1 mol (12.0 g) of carbon to form carbon dioxide releases 393 kJ of energy. The fission of 1 mol of uranium-235 can be represented by

235/92 U + 1/0 n → 2 1/0 n + 139/54 Xe + 95/38 Sr + 1.80×10 to the 10th power kJ.

1. Determine how many moles of carbon must be burned to generate the energy produced by fission of 5.00 mol (1180 g ) of uranium-235.

2. What is the mass of this amount of carbon, in metric tons (1 t = 1000 kg)?

Write the nuclear equation that shows how deuterium and tritium fuse to form helium and a neutron.

Living matter has a carbon-14 activity of about 24.0 counts/min per gram of carbon. What is the age of an artifact for which the carbon-14 activity is 3.00 counts/min per gram of carbon? The half-life of carbon-14 is 5730 years.

How long will it take for a 18.0-g sample of iodine-131 to decay to leave a total of 2.25 g of the isotope? The half-life of iodine-131 is 8.07 days.

A nucleus of thallium-209 decays by beta emission, forming nucleus A. Nucleus A also decays by beta emission to nucleus B. Write the nuclear symbol for B.

I just finished the episode and it cut off where Lucifer 'checks in' and it's so unfinished that there has to be a part two. But when I looked at the next episode it didn't show anything. Help? If there is a continued part could you tell me the name, episode, season, etc?