Physics, 10.07.2019 12:00 mercydiaz84
John is riding a ski lift to the top of wildcat mountain. he removes his gloves and rapidly rubs his hands together to warm them up. what happens when john rubs his hands? a. the skin on his hands rapidly conducts heat, similar to metal. b. he traps heat between his hands because skin is an insulator. c. the particles in his hands vibrate faster because of friction. d. thermal energy moves from his fingertips to his palms. e. he simulates a fever that’ll raise his core body temperature.
Answers: 1
Physics, 22.06.2019 02:30
The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information
Answers: 3
Physics, 22.06.2019 09:40
Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly
Answers: 3
Physics, 22.06.2019 10:00
Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.
Answers: 2
Physics, 22.06.2019 14:50
Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.
Answers: 2
John is riding a ski lift to the top of wildcat mountain. he removes his gloves and rapidly rubs his...
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