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Here's a basketball problem: A 80.0 kg basketball player is running in the positive direction at 7.0 m/s. what is the resulting velocity of the 80.0 kg player
A 4.3-m-tall, 50-cm-diameter concrete column supports a 1.0×105{\rm kg} load. By how much is the column compressed
Water (? = 1.00E-3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0149 m3/s. Calculate the radius of the horizontal pipe
A block of mass M=0.986kg is floating stationary in a beaker of water. A string connected to the bottom of the beaker holds the block in place. find the direction of the buoyant force acting on the b
Although the cross-sectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total cross-sectional area is much larger. calculate the total cross-sec
A jet of water squirts out horizontally from a hole near the bottom of the tank, What is the height, h, of the water level in the tank
A luminous object is 3.60m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
TV-reception antennas for VHF (channels 2 through 13) are constructed with cross wires supported at their centers, What is the frequency for channel 4
An Earth satellite has a speed of 28100 km/hr when it is at its perigee, 281 km above Earth's surface. Find the apogee distance
A ladder weighs 150 N, is 5m long, and is leaning against a frictionless wall at an angle of 30* with the horizontal. Draw an extended freebody diagram of this situation
A tube is open only at one end. A certain harmonic produced by the tube has a frequency of 470 Hz. What is the length of the tube
A string that is fixed at both ends has a length of 2.68 m. When the string vibrates at a frequency of 83.9 Hz, What is the wavelength of the waves that travel on the string
A rural power line carries 1.7 A rms at 4700 V. A step down transformer reduces this to 235 V rms to supply a house. Find the turns ratio of the transformer
A candle is placed 13.38 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, Find the focal length of the convex mirror
An electron is accelerated from rest through a potential difference that has a magnitude of 2.90 × 107 V. FIND the relativistic kinetic energy (in joules) of the electron
A plane sinusoidal electromagnetic wave has a magnetic field amplitude of 5.00 x 10^-5 T. What is the electric field amplitude of the wave
In one such test, 150 turns of wire were wrapped around a 7.0-m-diameter cylindrical shark tank. find the magnetic field strength in the center of the tank
A standing observer perceives a train whistle to have a frequency of 300 Hz. compute the frequency of the sound waves emitted from the train
A railroad car of mass 2.46 multiply.gif 104 kg, is moving with a speed of 4.13 m/s. What is the speed of the four cars after the collision
A 5 kg mass attached to a horizontal spring is pulled from its equilibrium position by 2 m and let go. what is the maximum velocity of the mass
A sanding disk with rotational inertia 2.0 multiply.gif 10-3 kg·m2 is attached to an electric drill whose motor delivers a torque of 8 N·m about the central axis of the disk. compute t
Two very narrow slits are illuminated by monochromatic coherent light in air that has wavelength 560 nm, What is the distance between the two slits
A certain gyroscope consists of uniform disk with a 50 cm radius mounted at the center of an axle that is 11 cm long and of negligible mass. what is the precession rate
Before landing astronauts on the moon, the Apollo 11 space vehicle was put into orbit around the moon. Calculate the ratio of densities (moon to earth)
Consider the series RC-circuit for which R = 45.0 k?, C = 45.0 µF, and emf = 33.0 V. find the charge on the capacitor one time constant