A960-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m before stopping. the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed? express answer in two significant figures.
Answers: 2
Physics, 22.06.2019 08:30
What object a collides with object b and bounces back its final momentum is?
Answers: 1
Physics, 22.06.2019 20:30
Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600
Answers: 2
Physics, 23.06.2019 10:00
The standard cell potential (e°cell) for the reaction below is +0.63 v. the cell potential for this reaction is when the concentration of zn2+ = 1.0 m and the concentration of pb2+ = 2.0 x 10-4 m. pb2+(aq) + zn(s) > zn2+(aq) + pb(s)
Answers: 2
Physics, 23.06.2019 12:00
Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?
Answers: 2
A960-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers l...
History, 25.11.2019 22:31
Mathematics, 25.11.2019 22:31