Physics, 04.10.2020 04:01 babyboogrocks5572
1. Consider a circular track with a radius of 200 meters. A runner starts on the east side and runs around the track to a point diametrically opposite her starting point. What is the magnitude of her displacement? She then runs the rest of the way around the track to complete a full lap. What is the magnitude of her total displacement after she has returned to her starting point?
Answers: 3
Physics, 21.06.2019 22:30
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 Γ 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.
Answers: 1
Physics, 22.06.2019 06:00
(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.
Answers: 1
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70βc. calculate the work (in kj) done during this process.
Answers: 3
Physics, 22.06.2019 11:10
An isotope undergoes radioactive decay by emitting radiation that has a β1 charge. what other characteristic does the radiation have?
Answers: 3
1. Consider a circular track with a radius of 200 meters. A runner starts on the east side and runs...
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