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A small laser emits light at power 5.00 mW and wavelength 633 nm. The laser beam is focused (narrowed) until its diameter matches the1266 nm diameter of a sphere placed in its path. The sphere is perfectly absorbing and has density 5.00e3 kg/m^3. What are?
1. The radiation pressure on the sphere
2. The magnitude of the corresponding force
3. The beam intensity at the sphere's location
4. The magnitude of the acceleration that force alone would give the sphere
A 10 kg uniform ladder , 8.0 m long is placed against a smooth wallat a height of 3.1 m . What is the force exerted on the wall by the ladder
a runner travels 100 m in 10.4 s. assume that it takes him 1.40 s to reach his top speed which is then maintained for
At t=0 a grinding wheel has an angular velocity of 24.20 rad/s. It has a constant angular acceleration of 24.2 rad/s^2 until a circuit breaker trips at t = 1.2 seconds.
You are in a hot air balloon (yes, another balloon problem!) rising from the ground at a constant velocity of 2.70 m/s upward. To celebrate the takeoff, you open a bottle of champagne, expelling the cork with a horizontal velocity of 4.00 m/s rela..
A car drives up a ramp inclined at 10 degrees above the horizontal,reaching a speed of 40 m/s at the end. It will jump a canyonthat is 101 meters wide. The lip of the takeoff ramp is 201meters above the floor of the canyon.
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistles is444 Hz when the train is approaching him and 440 Hz when the train is receding from him. Using these frequencies, he c..
A mass M1 = 5 kg sits on a table top connected by an ideal rope and pulley with a hanging mass M2 = 1 kg. The coefficient of kinetic friction between the table and M1 is 0.15, and the coefficient of static friction is 0.25. What is the acceleration o..
What current is in the primary circuit. A proton moves at a speed of 8.0 103 m/s as it passes through a magnetic field of 0.55 T. Find the radius of the circular path. Note down that the charge carried by the proton is equal to that of the electron..
A spherical balloon is partially blown up and its surface area is measured. More air is then added, increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 6.7 during this procedure, by what factor does the ..
Two power lines, each 260 meter in length, run parallel to each other with a separation of 35 centimeter. find the magnitude and direction of the magnetic force each exerts on the other
A 20 centimeter long and 170 gram rod is pivoted at one end. Find the period if the rod and clay swing as a pendulum
A 0.70-kg disk with a rotational inertia given by MR2/2 is free torotate on a fixed horizontal axis suspended from the ceiling. A string is wrapped around thedisk and a 2.0-kg mass hangs from the free end.
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