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A 4.0-kg mass on the end of a string rotates in a circular motion on a horizontal frictionless table. The mass has a constant speed of 2.0 m/s and the radius of the circle is 0.80 m. What is the magnitude of the resultant force acting on the mass?
A 4.0-Kg particle is moving with a velocity 20.0 m/s in the +xdirection when it is at position x=1.0 For x>1.0 m, the particle experiences a single force F= (α-βx)i, where α=36.0N and β=52.0 N/m. Determine the work done by the force on the particle..
Kevin have a mass of 87 kg and is skating with in-lineskates. He see his 22 kg younger brother up aheaed standing on thesidewalk, with his back turned. find Kevin's speed just before he grabbed his brother
A person applies a horizontal force to the top edge of a crate to get it to tip forward. Find the minimum force needed to make the crate start tipping
The load and they are taken down. Two people pull in the opposite directions on the ends of the spring, each with a force of 190 Newton. Determine the length of the spring in this situation
In gaseous sodium chloride, chloride ions have one more electron than they have protons, What is the magnitude of the electrostatic force the molecule exerts on it
A hoop and a disk, both of 0.70- m radius and 5.0- kg mass, are released from the top of an inclined plane 3.0 m high and 8.2 m long. What is the speed of the hoop
A star similar to our sun radiates energy at the prodigious rate of4.6 1026 W. At what rate does this star convert mass into energy
A rod suspended on its end and acting as a physcial pendulum swings with a period of T=1.49 sec. What is the length of this physical pendulum
At 273 K and 1.00 x 10^-2 atm, the density of a gas is 1.24 x 10^-5 g/cm3. Find the Molar Mass of the gas
for a projectile launched horizontally which of the following best describes the vertical component of a projectiles
A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 54.0 m/s. what is the final speed of the ball
water flows through a horizontal pipe, and then out into theatmosphere at a speed of v1=12 m/s. what is the gauge pressure in the left section of the pipe
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