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The distance between two telephone poles is d = 52.0 m. How much tension does the bird produce in the wire
A golf ball strikes a hard, smooth floor at an angle of 33.1 ° and, as the drawing shows, rebounds at the same angle. find the magnitude of the impulse applied to the golf ball by the floor
What is the Kinetic Energy of the sphere when it is 4.70cm from the line of charge if the only force on it is the force exerted by the line of charge
The velocity of an airplane with respect to the ground is 2.00 x 102 m/s at an angle of 30.0 degrees NORTH of EAST. What is the velocity of the air with respect to the ground
A skier who starts from rest reached a speed of 8.0m/s while goind down a ski slope for 5.0s. how far does the skier travel in this time
A football quaterback runs 15.0 m staright down the playing field in 2.50s. what are the average velocities for the three intervals
A toddler weighs 10 kg and raises herself onto tiptoe (on both feet). Her feet are 8cm long with each ankle joint being located 4.5cm from the point at which her feet contact the floor. What is the
If 5.0 moles of an ideal gas expands isothermally at 100 degrees C to 5.5 times its intial volume, then find heat flow into a system
In a certain experiment, the pressure of a gas depends on the volume by P=alphaV^2 + betaV^2, where alpha = 3.5 Pa/m^9 and beta = 8.2 Pa/m^6. What is the work done on the gas
Suppose 2.50 kg of 32 degrees C water is mixed with 9.30 kg of 65 degrees C water. If no heat is lost in this system, what is the final temperature of the water
a 25-kg iron cannonball is fired with speed 220 m/s. If it hit a concrete wall, how much does the temperature of the cannonball increase
A simulated bungee jumper falls off a ledge. The plot below shows the force the bungee cord exerts on the jumper as a function of distance from the ledge. estimate the work done by the bungee cord
The during an Apollo moon landing, reflecting panels were placed man the moon. find the distance between the astronomers and the moon
If material increases its length by 4.2% when its temperature is raised 40 degrees C, then what is its coefficient of linear expansion
A 47 microfarad capacitor is connected to a 9 volt battery. How many electrons is this charge equivalent to
If a feather is dropped on the moon falls 81.7cm in one second, calculate the acceleration due to gravity on the moon
A 200 gram ball is attached to a string that is 1 m long and swung in a vertical circle. What is the minimum veocity of the ball so that the string will not slack at the top
A projectile is fired from the edge of a 10m high cliff at 10m/s and an angle of 30 degrees from the horizontal. what is the magnitude of the final velocity
A racecar starts from rest and accelerates to 100 km/hr halfway around a circular track of a radius 50 m. What is the magnitude of the acceleration of the car
A rocket takes off vertically from the launchpad with no initial velocity but a constant upward acceleration of 2.25 m/s2. What is the maximum height the rocket will reach above the launchpad
For a 30 degree launch angle, the initial velocity(v0) is 3.12 m/s, the height at which the launcher is shot from has a height(h) of 1.17 m from the ground, Calculate angle the projectile makes with
consider two blocks of wood, one having mass of 1 kg and the other having a mass of 2 kg. What is the net force of the bottom block
A ball (m=1kg) is dropped from a height of 3 m. Assume no air resistance. After it bounces off the ground it only reaches a height of 2 m. What is the balls change in energy
A 9.0*10^-2kg ice cube at 0.0 degrees celcius is dropped into a styrofoam cup holding .35 kg of water at 13 degrees celcius. Find the amount of ice (if any) remaining
A hill that has a 32.1% grade is one that rises 32.1 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal