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A projectile is launched at 28 m/s at 22 degrees (above the horizontal) from the top of a building which is 62 meters above ground. It is fired from the building's edge. How far horizontally, does
A roller coaster (305 kg) moves from A (5.00 m above the ground) to B (23.0 m above the ground)Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mech
In a cloud chamber experiment, a proton enters a uniform 0.280T magnetic field directed perpendicular to its motion. You measure the proton's path on a photograph and find that it follows a circula
From a reference manual he determines that the coefficient of kinetic friction between the tires and the road under the prevailing conditions was 0.300. How fast was the car going when the driver ap
At the left end, the resistivity is 2.25*10^-8 ohm-meters , while at the right end it is 8.50*10^-8 ohm-meters. What is the resistance of this rod?
A hotel elevator ascends 160 with a maximum speed of 4.9. How far does the elevator move while accelerating to full speed from rest
Shoreline near Sitka, Alaska, roughly 1900 miles away. What was the approximate average speed (in mi/h and m/s) of the ocean current that carried the ducks to shore?
Imagine a small metal ball of mass and negative charge . The ball is released from rest at the point and constrained to move along the z axis, with no damping. If , what will be the ball's subseque
A hotel elevator ascends 200 m with a maximum speed of 5 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2. How long does it take to make the complete trip from bottom to top
A rifle bullet with a muzzle speed of 300 m/s is fired directly into a special, dense material that stops the bullet in 36 cm. Assuming the bullet's deceleration to be constant, what is its magnitu
At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 25.0 . The stone and ball collide part way up. How far above the base of the cliff does t
A uniform spherical shell of mass 8.50 {rm kg} with diameter 45.0 {rm cm} has four small masses of mass 2.30 {rm kg} attached to its outer surface and equally spaced around it. This combination is
While a parachutist is falling toward the ground, the downward force of gravity is exactly equal to the upward force of air resistance. Describe how/if the velocity of the parachutist changes- and
Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time t_{rm TO} needed to take off?
The car accelerates with a constant acceleration. It reaches a speed of 16.8 m/s (60.5 km/h) in a distance of 126 m. Calculate the acceleration of the car.
If magnitude of F1 is increased until the object just starts to leave the surface,, what is the magnitude of the acceleration on the mass in m/s^2 at this point?
The potential at the surface of a sphere of radius R is given by V = kcos^2(x) where k is constant. Find the potential inside and outside the sphere as a function of r and x (assuming there is no ch
Tina begins to accelerate at a steady 2.70 m/s^2 at the instant when David passes. How far does Tina drive before passing David? What is her speed as she passes him?
Consider an alcohol and a mercury thermometer that read exactly 0°C at the ice point and 100°C at the steam point. The distance between the two points is divided into 100 equal parts in both
How long is the bridge? Write an equation for the bridge's height. And how far from the center of the bridge are two points if the bridge's height at those points is 30 meters.
A 27 pound meteorite struck a car, leaving a dent 18 cm deep in the trunk. If the meteorite struck the car with a speed of 550 m/s, what was the magnitude of its deceleration, assuming it to be con
A beam of light travels from a medium with an index of refraction of 1.95 to a medium with an index of refraction of 1.30. If the beam refracts at an angle of 23.5° from the normal, at what ang
Find the maximum angle between the string and the vertical:
Calculate the impulse delivered to the ball during impact. If the ball is in contact with the slab for a time of 1.60ms , find the average force on the ball during impact.
When you have traveled only half the distance in part (a), is your speed equal to, greater than, or less than 5.9 m/s? Support your answer with a calculation