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A ball is kicked horizontally of the roof of a 100-ft high building at a speed of 18 ft/sec. Determine the angle in which the ball hits the ground, as measured counterclockwise from the positive horizontal.
A string is clamped at both ends and tensioned until its fundamental vibration frequency is 95Hz. what is the lowest frequency at which it will vibrate
A milliammeter reads 15mA full scale. It consists of a 0.20 Ohm resistor in parallel with a 36 Ohm galvanometer
Announcers at a certain radio station say that they are at "95 FM on your dial," meaning that they transmit at a frequency of 95 MHz (95 megahertz, or 95 million cycles per second). What is the wavelength of the radio waves from this station?
A frictional force of 320 N acts on the rim of a 1.4 m diameter wheel to oppose its rotational motion. What is the torque about the wheel's central axis
Classify and explain the five legal theories you could use in an attempt to have the regulation declared invalid and overturned in court.
At a distance of several kilometers from a radio transmitter, the electric field of the emitted radio wave has a magnitude of 0.12 V/m at one instant of time
An airplane is flying with a velocity of 246 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When the altitude of the plane is 2.7 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle ..
A hoop and a disk, both of 0.44- m radius and 5.0- kg mass, are released from the top of an inclined plane 3.5 m high and 8.7 m long. What is the speed of the hoop
A 300 g block on a 50.0 cm -long string swings in a circle on a horizontal, frictionless table at 60.0 rpm, What is the speed of the block
A lab technician uses laser light with a wavelength of 670 nm to test a diffraction grating. When the grating is 40.2 cm from the screen, the first-order maxima appear 6.02 cm from the center of the pattern. How many lines per millimeter does this gr..
A ball is thrown from the top of a building upward at an angle of 46 degrees to the horizontal and with an initial speed of 30m/s. the speed of the ball just before it strikes the ground
A 3.00-g bullet, traveling horizontally with a velocity of magnitude 370 m/s, is fired into a wooden block with mass 0.800 kg, What is the decrease in kinetic energy of the bullet
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