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Question: A rock is projected upward from the surface of the moon, at time t = 0.0 s, with a velocity of 30 m/s. The acceleration due to gravity at the surface of the moon is 1.62 m/s2.
Part A: The height of the rock when it is descending with a velocity of 20 m/s is closest to?
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The air velocity of an airplane is 188 km/hr at an angle of 26.0 degrees north of east. find the speed and direction of the wine
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6020 N when separated by 50 cm, center-to-center.
a 760 kg light weight helicopter ascends from the ground with an acceleration of 2.5m/s^2. what is the work done by the lifting force
A 3.0 kilogram block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring. Compute what initial speed should the block have if it is to compress the spring by 1.3 centimeter
A ladder is leaning against a wall by negligible friction. It is at an angle of 70 degrees to the horizontal, has a mass of 10kg and is 4 meters long. Its center of mass is 1/3 from the bottom end. What is the minimum coefficient of static friction t..
The energy in a lightning bolt is enormous. Consider, forexample a lightning bolt in which 29C of charge moves through apotential difference of 1.4*108 V. With the amountof energy in this bolt, how many kilograms of water at100o C could be boiled int..
A wheel of diameter 3.0 cm has a 4.0-m cord wrapped around it speriphery. Starting from rest, the wheel is given a constant angular acceleration of 2.0 rad/s2.The cord will unwind in: 0.82 s
While looking at her image in a cosmetic mirror, Dina notes that her face is highly magnified when she is close to the mirror, but as she backs away from the mirror, What type of mirror does Dina have
A transparent rod 50.0cm long and by a refractive index of 1.60 is cut flat at the right end and rounded to hemispherical surface (convex) by a radius of 15.0cm at the left end. An object is placed on the axis of the rod 12.0cm to the left of the ver..
A box slides down a 22° ramp with an acceleration of .92m/s2. Determine out the coefficient of kinetic friction between the box and the ramp.
A 1.50-m-long bar is pulled to the right at a steady 5.0 m/s perpendicular to a uniform 0.75 T magnetic field. The bar rides on parallel metal rails linked through a 25Ωresistor R, so the apparatus makes a complete circuit. The resistance of the bar ..
An electric vehicle starts from rest and accelerates at a rate of 1.8 m/s2 in a straight line until it reaches a speed of 29 m/s. How far does the vehicle move from start to stop
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