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A wave has an angular frequency of 110 rad/s and a wavelength of 1.80m. Calculate the angular wave number and the speed of the wave.
A projectile is fired at an angle of 55 degrees above the horizontal with an inital speed of 35.0 m/s. What is the magnitude of the horizontal component of the bullet's
A ball starts at a point 30 m above the bottom of a dip with of 25 m/s. overlook friction, what will be the speed of the ball at the top of the next slope, which is 45 m above the bottom of the dip.
A conducting rod whose length is ? = 1.60 m is placed on frictionless U-shaped metal rails that is connected to a lightbulb having a resistance of 4.00, At what rate is energy dissipated in the lightbulb
A copper-bottomed kettle, its bottom 24 cm in diameter and 3.0 mm thick, sits on a burner. The kettle holds boiling water, and energy flows into the water from the kettle bottom at 800 W.
A massive pulley in the shape of a solid disk is mounted on an axle with negligible friction. What is the mass of the pulley
A freight company uses a compressed spring to shoot 1.7 kg packages up a 1m high frictionless ramp into a truck. The spring constant is 241 N/m and the spring is compressed 33 cm.
Three point charges -q,-q, and 2q occupy the verices of an equilateral triangleof side a. Find the electric field at the center of the triangle
Now, as both pipes vibrate at their fundamental frequencies, the beat frequency of 17 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 333 m/s.
A spherical mirror is polished on both sides. When the convex side is used as a mirror, the magnification is +1/4. What is the magnification when the concave side is used as the mirror, the object remaining the same distance from the mirror.
An isolated hollow spherical conducting shell has a charge of 10^-6 C. In some manner, a point charge of 3*10^-6 C is placed inside the cavity of the shell,find the charge on the inner surface of the shell
Supply a small island (population of 1 million, some industry, some military) with electrical power. How many power plants would you need
A light source moves toward a receiver with speed v. If the source emits light with a frequency f0, what is the frequency of the received signal for a source of 220nm
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