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A cylindrical bucket, open at the top, is 24.0cm high and 15.0cm in diameter. A circular hole with a cross-sectional area 1.43cm is cut in the center of the bottom of the bucket. Water flows into th
A rock is thrown straight upward with an initial velocity of 24.5 m/s where the downward acceleration due to gravity is 9.81 m/s2. What is the rock's displacement after 1.00 s?
The pilot of an aircraft wishes to fly due west in a 67 km/h wind blowing toward the south. The speed of the aircraft relative to the air is 220 km/h. In what direction should the aircraft head? Ans
If a wind of 31.5 kt is blowing from the east (azimuth = 090°), calculate the heading (azimuth) you must ask your copilot to maintain.
A swimmer heads directly across a river, swimming at 1.8 m/s relative to the water. She arrives at a point 37 m downstream from the point directly across the river, which is 75 m wide. (a) What is t
What is the ratio of the final magnitude of the displacement to the total distance walked?
A object is found to move with an acceleration of magnitude 12 m/s^2 when it is subjected to a force of magnitude 200 N. Find the mass of the object?
The Roadrunner launches himself across the gorge at a launch angle of 16° above the horizontal, and lands with 1.4 m to spare. (a) What was the Roadrunner's launch speed?
The human ear canal is about 2.3 cm long. If it is regarded as a tube open at one end and closed at the eardrum, what is the fundamental frequency around which we would expect hearing to be most sen
A pipe open at both ends has a fundamental frequency of 380 Hz when the temperature is 0°C. (a) What is the length of the pipe?
Two protons are placed at a = 5.05 cm above and below the x axis at x = 0 as shown in the figure. An electron is placed along the x axis a distance b = 11.7 cm from the origin. a) Determine the magn
Three point charges are located on a circular arc as shown. (a) What is the total electric field at P, the center of the arc? (b) Find the electric force that would be exerted on a -5.00-nC point ch
Two small metallic spheres, each of mass m = 0.200 g, are suspended as shown. The spheres are given the same electric charge of 7.2 nC, and they come to equilibrium when each string is at an angle o
Two parallel wires are separated by 6.20 cm, each carrying 2.5 A of current in same direction. What is the magnitude of the force per unit length between the wires?
A rescue boat with speed 28.2 km/hr (with respect to the water) sets off from the dock at the optimum angle to reach the child as fast as possible. How far from the dock does the boat reach the chil
A wire carries a current of 7.0 A in a direction that makes an angle of 37.0° with the direction of a magnetic field of strength 0.300 T. Find the magnetic force on a 6.00 m length of the wire.
One mole of an ideal monoatomic gas initially at 300 K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. The molar heat capacity for constant volume for the gas is Cv = 3
Calculate the maximum force constant of the spring kmax that can be used in order to meet the design criteria.
A converging lens has a focal length of 4.0 cm. A 1.0cm high arrow is located 7.0 cm from the lens with its lowest point 5.0mm above the lens axis. make a full scale drawing of the situation, and us
Find the change in electric potential energy if the alpha particle is allowed to escape to infinity while the two protons remain fixed in place. (Throughout, neglect any radiation effects.) (d) Use
What is the absolute uncertainty for each measured period? What is the percentage difference between the two measurements?
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.14 g and a charge of magnitude q. The balls are attracted to each other, and the threads attached to the balls
Use the equations of motion with constant acceleration to find the electron's speed after 1.00 multiplied by 10-8 s, assuming it starts from rest.
A long wire has a radius of 1.45 mm. If charges on the surface of the wire produce an electric field just outside its surface of 564 N/C, what is the magnitude of the electric field a distance of 2.
(c) If the charge is all brought tn the center of the disk, find the magnitude and direction of the electric field at point P. (d) Why is the field in part (a) stronger than the field in part (b)? W