Physics, 07.12.2019 04:31 rosetoheart2
An astronaut on the moon pushes with her left hand on a small rock and with her right hand on a large rock. each hand pushes with a force of 15 n. the small rock has mass 2 kg and the large rock has mass 8 kg. what forces do the rocks exert on the astronaut?
the small rock exerts a pushing force of 20 n; the large rock exerts a pushing force of 78 n.
the small rock exerts a pushing force of 3 n; the large rock exerts a pushing force of 12 n.
each rock exerts a pushing force of 7.5 n.
each rock exerts a pushing force of 15 n.
Answers: 2
Physics, 23.06.2019 06:40
12. ritu obtained a distinct image of a distant tree on the screen with the of a concave mirror.to find the focal length of the mirror she has to measure the distance between: (a) mirror and the tree. (b) screen and the tree.(c) mirror and the screen. (d) mirror and tree as well as between screen and the tree.
Answers: 2
Physics, 23.06.2019 11:00
An astronaut on the moon throws a baseball upward. the asatronaut is 6ft, 6in. tall, and the initial velocity of the ball is 30ft per second. the heigh s of the ball in feet is given by the equation s = -2.7^2 + 30t + 6.5, where t is the number of seconds after the ball was thrown. after how many seconds is the ball 16ft above the moon's surface?
Answers: 2
Physics, 23.06.2019 13:30
If 150 kcal of heat raises the temperature of 2.0 kg of a material by 400 f°, what is the specific heat capacity of the material? 0.75 kcal/kg ∙ c° 1.35 kcal/kg ∙ c° 0.19 kcal/kg ∙ c° 0.34 kcal/kg ∙ c°
Answers: 1
An astronaut on the moon pushes with her left hand on a small rock and with her right hand on a larg...
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