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An astronomer is using a telescope to observe two distant stars. The stars are marginally resolved when she looks at them through a filter that passes green light near 550 nm. Which of the following actions would improve the resolution? Assume that the resolution is not limited by the atmosphere. Select all that apply. using a telescope with an objective lens of the same focal length but a smaller diameter using a telescope with an objective lens of the same diameter but longer focal length using an eyepiece with more magnification using a telescope with an objective lens of the same diameter but shorter focal length using an eyepiece with less magnification using a telescope with an objective lens of the same focal length but a larger diameter changing the filter to a longer wavelength changing the filter to a shorter wavelength.
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.60 m/s at an angle of 18.0° below the horizontal. How far horizontally from the base of the building does the ball strike the ground
How much work does Bob do on the rock and How much force, assumed to be constant, does Bob apply to the rock
Charges of 3.00 nC, -2.00 nC, -7.00 nC, and 1.00 nC are contained inside a rectangular box with length 1.00 m, What is the electric flux through the surface of the box
Two parallel square metal plates (side length: 13 cm) are separated by a dielectric material with a dielectric constant 3.9 and a thickness of 2.4 mm. Find the energy stored on the capacitor
Consider a hoop of mass 2.1 kg and radius 0.57 m that rolls without slipping down an incline. What forces act on the hoop
A 0.0280 kg bullet moving horizontally at 500 m/s embeds itself into an initially stationary 0.500 kg block. What is their velocity just after the collision
Starting from rest, a 4.10-kg block slides 2.6 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436, Determine the work done by normal force
The decay of a fictitious nucleus is accompanied by the emission of a gamma ray with wavelength 2.48*10-2 nm. What is the difference between these two levels
A positive particle with charge 2Q is at the origin between two equal negative particles each with charge - Q, Draw an electric field line diagram of the three paricle system
The two 10-cm-long parallel wires are divided by 5.0 mm. For what value of the resistor will the force between the two wires be 1.08×10-4 N.
a roller-coaster car has a mass of 504 kg when fully loaded with passengers point a is the bottom portion of roller
The Kinetic coeffficient of friction for a 12Kg mass on a table is 0.25. A string from the mass goes across a pulley and is attached to an 8.0kg mass hanging over the side of the table. find the magnitude of the acceleration of each mass
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