Physics, 25.01.2021 20:20 ineedhelpplz40
A 1000-kg car collides head-on with a 2500-kg van that is initially traveling at 20 m/s. The two vehicles stick together and come to rest immediately as a result of the collision. Calculate the initial speed of the car. PLS EXPLAIN HOW ALSO
Answers: 2
Physics, 21.06.2019 17:00, itzia00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 21.06.2019 22:00, treytonmesser
•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?
Answers: 3
A 1000-kg car collides head-on with a 2500-kg van that is initially traveling at 20 m/s. The two veh...
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