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A 12.0 N force with a fixed orientation does work on a particle as the particle moves through displacement d = (2.00i - 4.00i + 3.00k) m. What is the angle between the force and the displacement if the change in the particle's kinetic energy is?
(a) + 30.0 J and
(b) - 30.0 J?
Two packing crates of massesm1= 10.0kg and m2=7.00 are connected by a light string that passes over a frictionless pulley, Find the acceleration of the 7.00 kg crate
Starting from rest, a 5.2-kg blockslides 2.40 m down a rough 30.0°incline. The coefficient of kinetic friction between the block and the incline is µk = 0.436. Determine the work done by the force of gravity.
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
An explosive charge imparts a velocity of 10,350 feet per second to a mortar as it exits the muzzle of mortar. If the mortar is elevated at 80 degrees what are the horizontal and vertical velocities on the mortar shell.
A body of mass 2.9 kg makes an elastic collision by another body at rest and continues to move in the original direction however with one-fourth of its original speed, What is the mass of the other body? Kg
A meter stick (L = 1 meter) has a mass of m = 0.154 kilogram. Initially it hangs from two short strings: one at the 25 centimeter mark and one at the 75 centimeter mark. Obtain the tension in the string when the meter stick is vertical
a tube open at only one end is cut into two shorter nonequal lengths. the piece that is open at both ends has a
A cat rides a merry-go-round turning with uniform circular motion. At time t1 = 2.00 s, the cat's velocity is (3.00 m/s)i+(2.30m/s)j, What is the magnitude of the cat's centripetal acceleration
A piece of balsa wood of 0.3 g/cm3 is released after being completely submerged underwater. What is the magnitude of the initial acceleration of the wood
A block lies on a horizontal frictionless surface. A horizontal force of 100 N is applied to the block giving rise to an acceleration of 3.0 m/s2. Calculate the distance the block will travel if the force is applied for 10 s
Describe and explain the relationship between the advances in technology and such goals as reduced human workloads, environmental and resource stresses, free time, and contentment. Please Cite in APA
the coefficient of static friction is 0.26. If you apply the minimum force needed to get the refrigerator to move, illustrate what will the acceleration then be?
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