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A flat circular mirror of radius 0.150 m is lying on the floor. Centered above the mirror, at a height of 0.870 m, is a light source. Calculate the diameter of the bright circular spot formed on th
Show that the buoy will execute simple harmonic motion if the resistive effects of the water are neglected. (Do this on paper.
A 35.0-cm-diameter circular loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is measured to be 5.24 10^5 N · m2/C.
An electron is scattered with a speed of 4.5x107m/s at an angle of 60°. Determine the wavelength of the X-ray source.
A loudspeaker of mass 17.0 {rm kg} is suspended a distance of h = 1.80 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 2.70 {rm m}. Wha
A typical American house requires an average 20 kW for heating. How many homes could be heated with the waste heat of this one power plant?
A small circular hole 6.00 mm in diameter is cut in the side of a large water tank, 14.0 m below the water level in the tank. The top of the tank is open to the air. What is the volume dischar
A grating with 633 slits/cm is illuminated with light of wavelength 419 nm. What is the highest-order number that can be observed with this grating?
You discover a binary star system in which one member is a15MSun main-sequence star and the other star is a 10MSun giant. How do we believe that a star system such as this might have come to exist?
On one particular shot, his 1.0 g pellet gets stuck in the cheese, causing it to slide 25 cm before coming to a stop. If the muzzle velocity of the gun is 64 m/s and the cheese has a mass of 98 g, w
A spring with spring constant 11 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 9.0 cm and released. The ball makes 40 oscillations
The hinge applies a force to the left end of the beam that has a horizontal component H and a vertical component V. Find the magnitudes of these three forces.
A skier with mass of 80.0 kg starts from rest and skis down a slop from an elevation of 110.0 m. The speed of the skier at the bottom of the slope is 20.0 m/s. How much work is done by the nonconser
A car travels along a highway with a velocity of 24 m/s, west. The car exits the highway and 4.0 s later,its instantaneous velocity is 16m/s,45 north. what is the magnitude of the average acclerati
A uniform electric field of magnitude 390 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.10 cm. What is the work done by the field
An ice skater with a mass of 80kg pushes off against a second skater with a mass of 32kg. both skaters are initially at rest. what is the total momentum of the system after the push off?
A 25.0 kg loudspeaker is suspended 1.80 m below the ceiling by two 3.50 m long cables that angle outward at equal angles. What is the tension in each of the cables?
A spool of thin wire (with inner radius r = 0.50 m, outer radius R = 0.65 m, and moment of inertia I_cm = 1.1323 kg*m2) pivots on a shaft. The wire is pulled down by a mass M = 1.450 kg. After falli
A rifle is aimed horizontally at a target 55.0 m away. The bullet hits the target 1.50 cm below the aim point. What is the bullets flight time? What is the bullets speed as it left the barrel?
An airplane flies at airspeed (relative to the air) of 170 km/h. The pilot wishes to fly due North (relative to the ground) but there is a 77 km/h wind blowing Southwest (direction 225 clockwise fr
What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20.0C? Assume that the air bubble is always in thermal equilibrium with the surrounding water
The car encounters a loop of radius = 16.0 at ground level, as shown. As you will learn in the course of this problem, the initial height 48.0 is great enough so that the car never loses contact wi
Determine the (a) smallest, (b) second smallest, (c) third smallest (occurs twice), and (d) fourth smallest distance between the object and image of the object.
A box of mass 11 kg is at rest on a horizontal frictionless surface. A constant horizontal force then acts on the box, and accelerates it to the right. It is observed that it takes the box 6.5 secon
Two identical cars capable of accelerating at 3.50 are racing on a straight track with running starts. Car A has an initial speed of 2.70 ; car B starts with speed of 4.90. What is the separation of