Kimberly, alex, and fernando built small sailboats in science class. their boats have the following weights: kimberly: 150 grams alex: 175 grams fernando: 200 grams think about how much force is needed to move each boat. which correctly lists the boats in order from the most to least amount of force needed to move them? a) fernando, alex, kimberly b) alex, kimberly, fernando c) kimberly, alex, fernando d) kimberly, fernando, alex
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Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?
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Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?
Answers: 1
Kimberly, alex, and fernando built small sailboats in science class. their boats have the following...
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