Physics, 03.07.2019 01:30 Chavens520
1- suppose your friend is sitting on a sled and asks you to move her across a flat, horizontal field. you have a choice of (a) pushing her form behind by applying a force downward on her shoulders at 30° below the horizontal, or (b) attaching a rope to the front of the sled and pulling with a force at 30° above the horizontal . which option would be easier? why?
2- a crate is sitting in the center of a flatbed truck. as the truck accelerates to the east, the crate moves with it, not sliding on the bed of the truck. what force is accelerating the crate? in what direction is this force?
3- which one you prefer; winning 2.0 newton of gold on earth or 1.0 newton of gold on the moon?
Answers: 3
Physics, 21.06.2019 18:10
Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?
Answers: 1
Physics, 21.06.2019 22:30
Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate
Answers: 2
Physics, 22.06.2019 00:00
True or false: the revolution of the earth creates day and night as it rotates around the sun
Answers: 2
1- suppose your friend is sitting on a sled and asks you to move her across a flat, horizontal field...
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