If you were trying to design the most efficient nuclear fission reactor possible, what ratio of U-235 to U-238 would you want? Explain why.

A tall, cylindrical chimney falls over when its base is ruptured. Treat the chimney as a thin rod of length 58.8 m. At the instant it makes an angle of 30.

Check my work on this one question A worker uses a cart to move a load of bricks a distance of 10 m across a parking lot. If he pushes the cart with a constant force of 209 N, what amount of work does he do? Show your work.

An astronaut is being tested in a centrifuge. The centrifuge has a radius of 5.20 m and, in starting, rotates according to θ = 0.170t2, where t is in seconds and θ is in radians. When t = 4.

What are two dimensions of development? For each, give an example of how they can overlap

Explain the relationship among negative charges, positive charges, electrons and protons.

How many chromosomes will an elephant's sperm have?

Would the springs inside a bathroom scale be more compressed or less compressed if you weighed yourself in an elevator that was moving upward at constant velocity

tessa bought stock in a restaurant for $287.00 her stock is now worth $401.80 what is the percentage increase of the value of Tessa's stock?

Withholding Judgment on the mentally Ill is wise because It saves you from embarrassing yourself often people have disorders that don't affect you then you can try to understand what a person is experiencing all of the above

A 1200 W refrigerator, a 1500 W electric frying pan, and a 200 W lamp are plugged into the same outlet in a 15 A, 220 V circuit. (these devices are in parallel when plugged into the same socket.) What current (in A) is drawn by refrigerator?