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The rope of a swing is 3.00 m long. Calculate the angle from the vertical at which a 83.0 kg man must begin to swing in order to have the same KE at the bottom as a 1500 kg car moving at 1.25 m/s (2.80 mph).
A uniform thin rod of mass 4.19 kg pivots about an axis through its center and perpendicular to its length. What must the length of the rod be so that the moment of inertia of the three-body system with respect to the described axis is 0.977 kg·m2
An object moves 2.90m in the + x- direction under the influence of a 148 N force directed 42 degrees above the x-axis. Find the work done on the object
A student wants to determine the coefficients of static friction and kinetic friction between a box and a plank. What is the coefficient of static friction
While following a treasure map, you start at an old oak tree. You first walk 825m directly south, then turn and walk 1.25 km at 30.0 west of north, how far will you walk
A stone is thrown upwards with an initial velocity of 60 km/h. Calculate the maxiumum height from the ground
Two narrow slits are illuminated by a laser with a wavelength of 581nm. Calculate the distance between the two slits
A heat engine extracts 50.0kJ of heat from the hot reservoir each cycle and exhausts 35.0kJ of heat. What is the thermal efficiency
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 4.4 when the flywheel is rotating at 1.4×104 revolutions per minute. What is the moment of inertia of the flywheel
Which of the following quantities vary as a sine function or a cosine function of time for a particle that is executing simple harmonic motion? Displacement Velocity Acceleration Total energy
a wooden box weighing 245 n is pushed across the floor by a workman who exerts a horizontal force of 172 n. if the
An arteriole has a length of 1.03 mm and a radius of 24.7 %u03BCm. Calculate the resistance of the arteriole
four identical particles each with mass m 10-6 kg and charge q 10-6 c are initially at the four corners of a square
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