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The wheels, axle, and handles of a wheelbarrow weigh W= 62 N. The load chamber and its contents weigh WL = 665 N. The drawing shows these two forces in two dissimilar wheelbarrow designs. To support the wheelbarrow in equilibrium, the man’s hands apply a force to the handles that is directed vertically upward. Consider a rotational axis at the point where the tire contacts the ground, directed perpendicular to the plane of the paper. Discover the magnitude of the man’s force for both designs.
q1. a rubber ball of mass m 0.739 kg is dropped from a height ho 4.73 m and it rebounds to a height hf 3.66 m.
a persons metabolic rate can be measured using what is called a flow calorimeter. the person is placed in a large
A flywheel turns through 26 rev as it slows from an angular speed of 6.3 rad/s to a stop.
A 2.50-kg Pendulum is attatched to a string 11.4m stringis pulled aside until it is.386m above its lowest position and released. The pendulum is designed to emit sound waves at a frequency of 440 Hz; However, as it swings toward and away from an o..
A 54-kg skater initially at rest throws a 3.0-kg medicine ball horizontally to the left. Determine the acceleration of the ball during the throw
Consider an LC circuit in which L = 470 mH and C = 0.102 µF. What is the resonance frequency and If a resistance of 1.30 k? is introduced into this circuit, what is the frequency of the damped oscillations
at the local grocery store you push a 15.0- shopping cart. you stop for a moment to add a bag of dog food to your cart.
A car is traveling 72.0 km/h when the driver applies the brakes. If if car slows down uniformly with an acceleration of -4.5 m/s2, how far does the car travel before coming to rest.
A man holds a ladder horizontally at its center. Treating the ladder as a uniform rod of length 4.40 meter and mass 10.59 kilogram, find the torque the man must exert on the ladder
An airplane has an effective wing surfacearea of 10 m2 that is generating the lift force. What is the weight of the plane
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 117 bpm, How fast are you moving with respect to the Moon
A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.00 g coins stacked over the 15.0 cm mark, the stick is found to balance at the 42.0cm mark. What is the mass of the meter stick
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