Physics, 10.12.2020 16:30 Mynameismath
A student wants to use a ramp to move boxes into a truck bed that is 3 m high. He has a choice of 2 different ramps. The length of one ramp is 2m, and the length of the other ramp is 8m. Which one will make his work easier? A. 8m, because he has to apply more force over a greater distance. B. 8m, because he has to apply less force over a greater distance. C. 2m, because he has to apply less force over a greater distance. D. 2m, because he has to apply more force over a greater distance
Answers: 2
Physics, 22.06.2019 05:30
Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue
Answers: 2
Physics, 22.06.2019 14:10
Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length
Answers: 1
Physics, 22.06.2019 15:40
How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9
Answers: 1
A student wants to use a ramp to move boxes into a truck bed that is 3 m high. He has a choice of 2...
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