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An air-track glider attached to a spring oscillates with a period of 1.50s . At t=0s the glider is 4.50cm left of the equilibrium position and moving to the right at 32.6cm/s .
What is the phase constant?
You pull your 55.00 kg friend on a 5.00 kg sled across a patch of snow. You pull using a 48-N force on a rope that makes a 35 degree angle with the horizontal. If the friction force between the sled and the snow is a mere 5-N what is the normal fo..
A curve of radius 40 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely create the curve?
An airplane has a mass of 2.6 x10^6 kg, and the air flows past the lower surface of the wings at 95m/s. If the wings have a surface area of 1200m2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the air?..
A ball is thrown with an initial velocity of 14m/s. using the approximate value g=10 m/s^2, at what time does the ball reach its high point?
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. The mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain by the block and tackle pulley system. What is the work done..
A rotating wheel requires 6.00 s to rotate 30.0 revolutions, What is the constant angular acceleration (in rad/s) of the wheel
What is the electrostatic force on each particle.
A 55.5 kg ice skater is moving at 3.99 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. What is the ratio of this force to her weight
A 3.5 mL syringe has an inner diameter of 5.0 mm, a needle inner diameter of 0.24 mm, and a plunger pad diameter, The nurse empties the syringe in 2.3 s. What is the flow speed of the medicine through the needle
An object's moment of inertia is 1.8kgm2 . Its angular velocity is increasing at the rate of 3.3rad/s2, What is the torque on the object
A hot (70 C) lump of metal has a mass of 250 gm and a specific heat of .25 cal/gm-C. John drops the metal into a 500 gm calorimeter (specific heat of .10 cal/gm-C) containing 75 g of water at 20 C. Once they reach equilibrium, what will be the fin..
Suppose atmospheric pressure at Denver is 1.0135 × 105 N/m2 today. How high will the water column stand on the barometer tube
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