23. Two ice skaters stand next to each other on a frozen pond. The first skater has a mass of 65 kg and the
second skater has a mass of 82 kg.
If the first skater pushes against the second with a force of 35 N, south, what are their respective
accelerations?
A. First skater: 0.27 m/s?, north; Second skater: 0.21 m/s2, south
B. First skater: 0.27 m/s?, south; Second skater: 0.21 m/s?, north
C. First skater: 0.54 m/s?, north; Second skater: 0.43 m/s?, south
D. First skater: 0.54 m/s?, south; Second skater: 0.43 m/s?, north
24. A girl is sitting motionless on a swing. Her weight of 245 N is exerting a downward force on the swing.
The ropes are exerting an upward force on the swing.
What is the net force on the swing?
I
A. O Newtons
B. 245 Newtons upwards
C. 245 Newtons downwards
D. 490 Newtons upwards
no
Answers: 2
Physics, 21.06.2019 17:30, corynanderson16
The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
Answers: 1
Physics, 22.06.2019 04:00, katieleeisaacs8368
Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?
Answers: 1
Physics, 22.06.2019 06:20, walmartislife
Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question
Answers: 1
Physics, 22.06.2019 07:20, MannyBanko1350
If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =
Answers: 1
23. Two ice skaters stand next to each other on a frozen pond. The first skater has a mass of 65 kg...
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