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An 18 g rifle bullet traveling 210 m/s buries itself in a 3.6 kg pendulum hanging on a 2.7 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal compo
A 65 kg woman and a 85 kg man stand 14.5 m apart on frictionless ice. If they hold on to the two ends of a rope, and the man pulls on the rope so that he moves 2.4 m, how far from the woman will he
Find a. the speedd of the disk's center of mass when it reaches the bottom of the ramp and b. the angular speed of the disk at the bottom of the ramp.
Particle 1 of charge 1 µC and particle 2 of charge -3 µC are held at separation L = 10cm on an x-axis. What must be the x and y coordinates of particle 3?
If the coefficient of kinetic friction is 0.20, how much work was done by the worker's force?
What is the mass of an ice cube, taken from a -19.0^circ C freezer, that will cool your coffee to a pleasant 59.0^circ?
He holds a flashlight between his feet and manages to point it at the mirror. At what angle of incidence must the light strike the mirror so the light will reach his eyes?
A constant torque of 21.4 N·m is applied to a grindstone whose moment of inertia is 0.125 kg·m2. Using energy principles, calculate the angular speed (in revolutions per second) after
In the determination of the volume of the irregularly shaped object, any air bubbles sticking to the surface of the object when it is submerged cause systematic error. Will this error give an exper
What is the radius of the turn if theta = 20.0 degrees (assuming the car continues in uniform circular motion around the turn)?
A alpha particale has a mass 6.64× 10^27 kg and a charge of + 2e What the magnitude and direction of the electric field that will balance the gravitational force on the particale?
A 0.250 kg block on a vertical spring with a spring constant of 500x 10^ N/m is pushed downward, compressing the spring 0.100m. when released, the block leaves the spring and travels upward vertical
How much energy is lost per second when the steam is at 200°C and the surrounding air is at 20.0°C? The pipe has a circumference of 800cm and a length of 50.0m.
It has been suggested that rotating cylinders about 12 mi long and 3.9 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal ac
An automobile traveling at 15.0km/h along a straight, level road accelerates to 67.0km/h in 6.20s . What is the magnitude of the auto's average acceleration?
A person pushes on the outer edge of one pane with a force of F = 51 N that is directed perpendicular to the pane. Determine the magnitude of the door's angular acceleration.
A 42 kg pole vaulter running at 13 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her alti
Assume that at some point just outside the surface of the conductor, the electric field has magnitude and is directed toward the surface of the conductor. What is the charge density on the surface
A 400 gram block, attached to the end of an ideal spring (horizontal) with force constant k = 10 N/m. Compute the magnitude of the maximum acceleration of the block.
The following information came from the income statement of the Wilkens Company at December 31, 2007: sales $1,800,000; beginning inventory $160,000; ending inventory $240,000; and gross profit $600
(a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? (c) What is the magnitude of the vertical component of its veloci
Helium plus air density in the balloon is 0.247kg/m^3, and Helium density is 0.179kg/m^3. Ignoring the volume of the payload, find the volume of the balloon.
A 280 block on a 52.0 -long string swings in a circle on a horizontal, frictionless table at 55.0. What is the speed of the block? What is the tension in the string?
A 3.3 kg block slides along a frictionless horizontal with a speed of 6.2 m/s. After sliding a distance of 2 m, the block makes a smooth transition to a frictionless ramp inclined at an angle of 33?
Three teams are involved in pulling a 435 kg anvil. Team A is pulling with a force of 70 N to the East. Team B is pulling with a force of 126 N to the West. Team C is pulling with a force of 85 N t