Physics, 07.03.2020 00:07 elliehemms6324
Suppose a child drives a bumper car head-on into the side rail, which exerts a force of 4000 N on the car for 0.200 s.
a. What impulse is imparted by this force?
b. Find the final velocity of the bumper car if its initial velocity was 2.80 m/s and the car plus driver have a mass of 200 kg. You may neglect friction between the car and floor.
Answers: 2
Physics, 21.06.2019 22:30
Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?
Answers: 1
Physics, 22.06.2019 06:30
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
Answers: 2
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 21:00
The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.
Answers: 1
Suppose a child drives a bumper car head-on into the side rail, which exerts a force of 4000 N on th...
Mathematics, 14.02.2020 04:28
Computers and Technology, 14.02.2020 04:29
Mathematics, 14.02.2020 04:29
Computers and Technology, 14.02.2020 04:29
Mathematics, 14.02.2020 04:29
History, 14.02.2020 04:29