Physics, 06.05.2020 20:58 GreenHerbz206
The picture shows rays passing through an unknown lens. A grey rectangle with rounded corners labeled Unknown lens has a focal point to its left and a grey arrow to the left of the focal point, pointing up from a line running through the center of the lens. A line from the top of the grey arrow goes straight to the centerline of the lens and then sharply down and right to focal point B. A line from the top of the grey arrow goes shallowly down and right to the centerline of the lens and then straight right to label A. A line from the top of the grey arrow goes straight down and right through the center of the lens to a label D. A line from the top of the grey arrow goes down and right through the left focal point to the centerline of the lens and then straight to a label C. Which ray would appear on a ray diagram for both a concave lens and a convex lens? A B C D
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Physics, 22.06.2019 01:30
The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation
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Physics, 22.06.2019 18:00
According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.
Answers: 2
Physics, 22.06.2019 20:50
Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x,y,t)along the plate at any time t.b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax
Answers: 1
Physics, 22.06.2019 22:00
Aspaceship starting from a resting position accelerates at a constant rate of 9.8 meters per second per second. how far will the spaceship travel if its final speed is 1 percent the speed of light (300,000,000 m/s)? a. 3.1 × 106 m b. 2.94 × 108 m c. 7.8 × 1010 m d. 4.6 × 1013 m
Answers: 1
The picture shows rays passing through an unknown lens. A grey rectangle with rounded corners labele...
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