Physics, 20.08.2019 02:30 mttttttthhhhhhh551
Sophia exerts a steady 40-n horizontal force on a 8-kg box resting on a lab bench. the box slides against a horizontal friction force of 24 n. show that the box accelerates at 2 m/s2.
Answers: 1
Physics, 22.06.2019 05:00
Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
Answers: 1
Physics, 22.06.2019 07:40
Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents
Answers: 2
Physics, 22.06.2019 16:40
The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?
Answers: 1
Physics, 22.06.2019 17:30
Convection currents are caused by differences in what two things?
Answers: 1
Sophia exerts a steady 40-n horizontal force on a 8-kg box resting on a lab bench. the box slides ag...
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