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During a solar eclipse, the moon, earth and sun all lie on thesame line with the moon between earth and the sun
(a) what force isexerted by the sun on the moon?
(B) what force is exertedby earth on the moon?
(C) what force is exerted by the sunon earth?
A ball is thrown upward from a platform 4.0 m high with a speed of 23 m/s at an angle of 37 o from the horizontal. What is the magnitude of its velocity when it hits the ground?
Calculate the gravitational force between the Sun and the Earth. Use the following numbers. G = 6.67 x 10-11 m3/kg/s2, Mass of the Sun (M_sun) = 2.0 x 1030 kg
A two-slit pattern is viewed on a screen 1.25 m from the slits. If the two third-order minima are 29.0 cm apart, what is the width of the central bright fringe? (This is the distance between the nearest minima which bracket the central fringe.)
Some bacteria are propelled by biological motors that spin hair-like flagella. What is the angular speed (the magnitude of the angular velocity) of this bacterial motor
a 5.0m long ladder leans agaisnt a wall, touching it at a point 3.8 above the ground. the ladder is uniform with a mass of 15kg. the was is frictionless. what is the vertical normal force acting on the ladder
A steady current of 1.5 A flows through a 3600 ohm resistor for 2 seconds. How many charges are flowing at any point in the wire during the 2 seconds
Emilie's potter's wheel rotates with a constant 2.20rad/s2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.30s interval
The froghopper, Philaenus spumarius, holds the world record for insect jumps. What horizontal distance did the froghopper cover for this world-record leap
A simple pendulum has a length of 0.80 m and a bob of mass 0.20 kg. It is initially displaced to an angle of 18 degrees from the vertical, What angle does it make with the vertical
The pilot of an airplane travelling 200 km/h wants to drop supplies to flood victims isolated on a patch of land 165m below. The supplies should be dropped how various seconds before plane is directly overhead.
An image of the moon is created by reflection off of a concave mirror at a point 6.0cm from the mirror. where will the image be
The toadfish makes use of resonance in a closed tube to produce very loud sounds. The tube is its swim bladder, used as an amplifier. Calculate the intensity of the sound wave emitted
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