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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
A subway train accelerates from rest at one station at a rate of 1.30 m/s^2 for half the distance to the next station, then decelerates at this same rate for the second half of the distance. If the
Susan's 12.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30 degrees above the floor. The tension is a constant 30.0 N and the coefficient of
A 15 g piece of Styrofoam carries a net charge of -0.5 μC and floats above the center of a very large horizontal sheet of plastic that has a uniform charge density on its surface.
A centrifuge is a common laboratory instrument that separates components of differing densities in solution. How many revolutions did the centrifuge complete after being turned off?
A car starts from rest on a curve with a radius of 110 and accelerates at 0.500 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 3.50 ?
The same elevated temperature, 50°C. You now plop (yes, plop) them down in a dark, much cooler room. Which object will reach the room's temperature first?
A heavy piece of hanging sculpture is suspended by a 90-cm-long, 5.0 g steel wire. When the wind blows hard, the wire hums at its fundamental frequency of 80 Hz. What is the mass of the sculpture?