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1.0-kg mass weighs 9.8 N on earth's surface , and the radiusof earth is roughtly 6.4x10^6m.
A) calculate the mass of earth.
B) calculate the average density of earth.
Violet light falls on a surface with two small slits 1.9 x10–4 cm apart. A first-order line appears 13.2 cmfrom the central bright spot on a screen opposite the slits. Thedistance from the center of the slits to the first-order violetline is 60 cm...
The drive propeller of a ship starts from rest and accelerates at 2.44 x 10-3 rad/s2 for 2.43 x 103 s. Find the total angular displacement of the propeller
A net is positioned a horizontal distance of 52.0 m from the cannon. Explain at what height above the cannon should the net be placed in order to catch the daredevil?
An infinitely-long, uniformaly charged line of charge with linear charge density x=0.1_C/m lies a distance d=0.068_m from the center of a sphere with radius R = 0.23_m. What is the amount of charge inside the sphere
A rectangular container measuring 24 cm 48 cm 55 cm is filled with water. What is the mass of volume of water in kilograms.
in what way is the npv consistent with the principle of shareholder wealth maximization? what happens to the value of a
When the three blocks in the figure below are released from rest, they accelerate with a magnitude of 0.740 m/s2, What is the coefficient of kinetic friction between block 2 and the table
An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer first sees the car, the locomotive is 130 m from the crossing and its speed is 17 m/s.
question a 1100 kg car is moving at a speed of 40.0 ms. a what is kinetic energy of the car? b how much work is
A rod of 2.0-m length and a square (2.0 mm × 2.0 mm) cross section is made of a material with a resistivity of 6.0 × 10-8 ? ? m. at what rate is heat generated in the rod
question1two dogs pull horizontally on ropes attached to a post angle problem 1 between the ropes is 60.0 degrees. if
Draw a free body diagram of a container of water that you are holding, you walk with the container at a constant speed and then stop abruptly. Draw arrows for the force of gravity, the normal force (your hand pushing up on the container) and the s..
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