Physics, 18.12.2019 00:31, Alexis3456829
Suppose you are at the beach, standing at the edge of the water with your dog. as you look westward into the ocean, you throw a tennis ball out into the water. the ball lands in the water 20 meters north and 13 meters west of where you are standing. the dog swims at 5 m/s but runs at 13 m/s. how far north does the dog run before jumping in the water to minimize his time to get to the ball? assume the coastline is straight and ignore both water currents and wind drag.
Answers: 1
Physics, 22.06.2019 11:50, kaylallangari2145
Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?
Answers: 2
Physics, 22.06.2019 16:30, amayareyes101
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?
Answers: 2
Physics, 22.06.2019 19:30, cocoabean1981
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 2
Suppose you are at the beach, standing at the edge of the water with your dog. as you look westward...
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