A900-kilogram compact car was stopped at a traffic light when an 1,800-kilogram luxury sedan struck it from behind. the two cars became entangled due to the collision. if the luxury sedan was traveling at a velocity of 34.0 m/s north before the collision, what is the velocity of the entangled mass after the collision? a. 11.6 kg·m/s b. 22.7 kg·m/s c. 33.8 kg·m/s d. 44.9 kg·m/s
Answers: 3
Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 12:30
Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.
Answers: 1
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
Physics, 23.06.2019 02:00
Consider an air-filled charged capacitor. how can its capacitance be increased?
Answers: 2
A900-kilogram compact car was stopped at a traffic light when an 1,800-kilogram luxury sedan struck...
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