Physics, 06.03.2021 04:10, genyjoannerubiera

A good workout would burn about 100,000 joules of chemical energy. Suppose you wanted to push a sofa with a force of 1600 Newtons as exercise. How far would you need to push the sofa for you to get a good workout?

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 01:30, chandranewlon

Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j

Answers: 1

continue

Physics, 22.06.2019 18:40, mckennacwilliams

Smallest intensity of a stimulus that you can detect 50 percent of the time is

Answers: 1

continue

Physics, 23.06.2019 01:30, eliascampos823

Acyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. deuterons are nuclei of deuterium, an isotope of hydrogen, consisting of one neutron and one proton, with total mass 3.34×10−27kg. the deuterons exit the cyclotron with a kinetic energy of 6.40 mev .a-what is the speed of the deuterons when they exit? b-if the magnetic field inside the cyclotron is 1.25 t, what is the diameter of the deuterons' largest orbit, just before they exit? c-if the beam current is 350 μa how many deuterons strike the target each second?

Answers: 3

continue

Physics, 23.06.2019 08:00, edjiejwi

Athin electrical heater is inserted between a long circular rod and a concentric tube with inner and outer radii of 20 and 40 mm. the rod (a) has a thermal conductivity of ka = 0.15 w/(m*k), while the tube (b) has a thermal conductivity of kb = 0.8 w/(m*k) and its outer surface is subjected to convection with a fluid of temperature t= -15°c and heat transfer coefficient 60 w/(m2 *k). the thermal contact resistance between the cylinder surfaces and the heater is negligible. (a) determine the electrical power per unit length of the cylinders (w/m) that is required to maintain the outer surface of cylinder b at 15°c. (b) what is the temperature at the center of cylinder a?

Answers: 2

continue

Do you know the correct answer?

A good workout would burn about 100,000 joules of chemical energy. Suppose you wanted to push a sofa...