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The safe speed (no friction needed to stay on the run) for the smaller radius curve is v. What is the safe speed on the larger radius curve?
The angle between the support cable and the horizontal is 32°, and the angle between the boom and the horizontal is 48°.Find the tension in the support cable. Find the magnitude of the force
Find the minimum aperture diameter of a camera that can resolve detail on the ground the size of a person (2.0 m) from an SR-71 Blackbird airplane flying at an altitude of 29 km. (Assume light with
By how much will the spring stretch if the mass moves along a circular path of radius 0.480 m at a rate of 1.88 revolutions per second?
An infinitely long line of charge has a linear charge density of 8.00×10-12 C/m. A proton is at distance 16.0 cm from the line and is moving directly toward the line with speed 1200 m/s. How
What must be the muzzle speed of the package so that it travels completely around the Moon and returns to its original location?
A 100.0 resistor, a 50.0 resistor, and a 40.0 resistor are connected in parallel and placed across a 12.0 V battery. a) What is the equivalent resistance of the parallel circuit?
Many people mistakenly believe that the astronauts orbiting the earth are "above gravity." Calculate the acceleration due to gravity, g, for space shuttle territory, 245 kilometers above the earth's
Assuming a constant acceleration for the sled, what distance does it travel during the speeding-up phase? (b) What is the net work done on the sled during the time interval?
You're driving down the highway late one night at 18 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s , and the maximum decelerati
On a level road with its brakes on, a car traveling at 100 km/hr stops within 85 m when the brakes lock and the car slides.
A 79 g arrow is fired from a bow whose string exerts an average force of 95 N on the arrow over a distance of 79 cm. What is the speed of the arrow as it leaves the bow?
jump to a height of 12.4 ft when leaving the ground at an angle of 42°. With what speed, in SI units, must the animal leave the ground to reach that height?
What is the work done by each horse if the box is moved a distance of 25m? b) What is the tension in each cable if the angle between each cable and the direction the crate moves is 15 degree?
An infinitely long line of charge has a linear charge density of 7.00×10-12 . A proton is at distance 15.0 from the line and is moving directly toward the line with speed 1700 .How close does
A ladybug is sitting at the center of a turntable. The turntable is rotating on a frictionless bearings and it rotates without assistance from a motor. As the ladybug walks to the edge of the turnta
The free end of the rope is pulled with a constant force P for a distance of 4.00 m, at which point the end of the rope is moving at 7.00 m/s. If the rope does not slip on the cylinder, what is the
A conical pendulum consists of a bob of mass m in motion in a circular path in a horizontal plane. Recall the demo in class with the bowling ball hung from the ceiling that acted as a pendulum. Duri
The average intensity of light emerging from a polarizing sheet is 0.709 W/m2, and that of the horizontally polarized light incident on the sheet is 0.981 W/m2. Determine the angle that the transmi
A train is traveling up a 3.8^circ incline at a speed of 2.80 m/s when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentari
Bonnie and Clyde are sliding 500 bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 410 of force while Bonnie pulls forward on a
When a 50-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 90 rad/s2. What is the mass of the disk?
A 3.2 mass attached to a spring with a spring constant of 114 is oscillating in a vat of oil, which damps the oscillations. If the damping constant of the oil is 10 kg/s, how long will it take the
When catching a baseball, a catcher's glove moves by 11 cm along the line of motion of the ball. If the baseball exerts a force of 403 N on the glove, how much work is done by the ball?
If so how fast will the cars be traveling when they collided? If they did not, what is the distance between the cars at this point?