Physics, 14.09.2019 07:10 afonseca73
In order to start a fire, a camper turns a lens toward the sun to focus its rays on a piece of wood. the lens has a 12 cm focal length. use a ray diagram of the lens and the incoming light rays to find the distance from the lens at which the wood should be placed for the best effect.
Answers: 1
Physics, 21.06.2019 16:20, claudia1252
Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be
Answers: 1
Physics, 22.06.2019 04:20, gonzalesalexiaouv1bg
When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.
Answers: 1
Physics, 22.06.2019 06:40, miaglory3828
Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?
Answers: 2
Physics, 22.06.2019 13:00, Ryleetarver
Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg
Answers: 1
In order to start a fire, a camper turns a lens toward the sun to focus its rays on a piece of wood....
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