Physics, 14.07.2019 11:30 buchmannhannah0
A60 kg boy and 40 kg girl stand on skateboards on a frictionless horizontal surface. the boy pushes the girl away from him. the girl gains a speed of 0.3 m/s during the 0.50 s the boy's hands are in contact with her. a. what will be the boy's speed after? b. assuming that in each case the girl achieved the same speed, would it matter whether the boy pushed the girl, the girl pushed the boy, or they put their hands together and pushed each other away?
Answers: 1
Physics, 21.06.2019 20:20, jazmaine1217
When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation
Answers: 2
Physics, 22.06.2019 02:30, scasemere
Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.
Answers: 2
Physics, 23.06.2019 15:30, pulliamdylan
Ascience teacher heated liquid ethanol for an experiment. when he turned up the temperature, the ethanol quickly disappeared, and a strong aroma filled the room. what happened to the ethanol?
Answers: 3
A60 kg boy and 40 kg girl stand on skateboards on a frictionless horizontal surface. the boy pushes...
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