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A purse at radius 2.00 m and a wallet at radius 3.00 m travel in uniform circular motion on the floor of a merry-go-round as the ride turns. They are on the same radial line. At one instant, the acc
A ceiling fan with 86--diameter blades is turning at 65 . Suppose the fan coasts to a stop 26 after being turned off. What is the speed of the tip of a blade 10 after the fan is turned off?
The wire is attached to the top of the rod. Find the tension in the wire,Find the horizontal component of the force exerted on the rod by the hinge. Find the vertical component of the force exerted
An artillery shell is fired with a minimal velocity of 420 m/s at 51o above the horizontal. To clear an avalanche, it explodes on a mountain side 48 s after firing. What is the X-coordinate re
75.0 m north, 300 m east, 205 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.
After falling from rest from a height of 34 m, a 0.55 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.6 ms, what average force was exerted on the
A car is moving at 21 m/s along a curve on a horizontal plane with radius of curvature 57 m. The acceleration of gravity is 9.8 . What is the required minimum coefficient of static friction between
A 0.027 kg golf ball moving at 18.3 m/s crashes through the window of a house in 4.8 10-4 s. After the crash, the ball continues in the same direction with a speed of 12.0 m/s. Assuming the force ex
What is the maximum length (km) of a steel cable that can be lowered into a mine? Assume that the magnitude of the acceleration due to gravity remains constant at 9.8 meters per second per second.
An electron moves at a speed of 480 m/s perpendicular to the direction of a uniform magnetic field of 1 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 109 nm)
At one instant a bicyclist is 53.0 m due east of a park's flagpole, going due south with a speed of 12.0 m/s. Then 37.0 s later, the cyclist is 53.0 m due north of the flagpole, going due east with
Determine electric field at position of the point charge (b) the force experienced by the point charge as a result of the electric field (c) potential difference at the position of the point charge
A 50.0 g Super Ball traveling at 26.0 m/s bounces off a brick wall and rebounds at 19.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the
At what time is the speed of the object three- fourths the terminal speed? How far has the object traveled in the first 5.018 s of motion?
A 2100 kg car traveling to the right at 32 m/s is chasing a second car of the same mass that is traveling to the right at 10 m/s.
If a flight mechanic drops a box of tools from a high-flying jumbo jet, it crashes to Earth. In 2008 an astronaut on the orbiting space shuttle accidentally dropped a box of tools. Why did the tools
When the airport sends out a rescue crew, how far will the crew to go directly to this place? In which direction in degrees south of east?
A particle undergoes the following consecutive displacements: 3.50 m south, 8.20 m northeast, and 15.0 m west. What is the resultant displacement?
Engine B also delivers 1500 J of work, while rejecting heat to an even colder reservoir that has a temperature of T2. Find the temperatures.
A person exerts a horizontal force of F = 190 N in the test apparatus shown in the drawing. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exe
Use kinematic equations to find the magnitude of the acceleration on the bullet as it is penetrating the block (ignore gravity, and assume that the force on the bullet as it penetrates the block is
A 66 kg boy and a 43 kg girl use an elastic rope while engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the
A ranger in a national park is driving at 34.0 mi/h when a deer jumps into the road 190 ft ahead of the vehicle. After a reaction time t, the ranger applies the brakes to produce an acceleration of
The total electric flux from a cubical box 30.0 cm on a side is 1.65 × 103 N·m2/C. What charge is enclosed by the box?
An electric dipole is formed from +/-4.0 nC point charges spaced 3.0 mm apart. The dipole is centered at the origin, oriented along the y-axis. What is the electric field strength at point (x,y) =