Asoccer player runs across a soccer field. a. if the soccer player runs with a speed of 4.6 m/s, how long does it take him to run 60 m? b. it takes the soccer player 3 seconds to reduce his speed to 3.1 m/s. what is his acceleration? c. the soccer player is running at a speed of 4 m/s when he slides on the ground, coming to a stop in a distance of 2 m. what was his acceleration? d. the soccer player accelerates from rest at a rate of 3.1 m/s2. how far does he run in 1.5 seconds? physics
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Physics, 22.06.2019 14:30
Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.
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Physics, 22.06.2019 17:00
Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?
Answers: 2
Physics, 22.06.2019 19:00
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
Answers: 1
Asoccer player runs across a soccer field. a. if the soccer player runs with a speed of 4.6 m/s, how...
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