Physics, 26.05.2021 17:10 jonmorton159
4. A physics teacher asks their students to conduct an experiment in which they pull a block up an incline
with a force sensor. The students are supposed to change the mass of the block and measure the force
of friction acting on the block. Which is the independent variable?
a. mass of the block
c. same incline
b. force of friction
d. same force sensor
e time
Answers: 2
Physics, 21.06.2019 18:40
An observer that stands still as the electron moves by him, will observe
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Physics, 22.06.2019 05:00
Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s
Answers: 1
Physics, 22.06.2019 10:30
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
Physics, 22.06.2019 18:00
Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point
Answers: 1
4. A physics teacher asks their students to conduct an experiment in which they pull a block up an i...
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