Solve the above equation for an algebraic formula which gives the speed of venus (vp) required to achieve circular orbit around the sun. make sure to fully simplify your answer, including by plugging in the formula for fgrav (the algebraic formula in box 5

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90