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You see lightning strike a mountaintop, and 2.98 s later you hear the accompanying thunder. How far away is the mountaintop? The speed of sound is 340 m/s, and the speed of light is 3.00 multiply.gif 108m/s
A professor's office door is 0.9 wide, 2.0 high, and 4 thick; has a mass of 25; and pivots on frictionless hinges. A "door closer" is attached to door and top of the door frame.
In a physics laboratory experiment, a coil with 200 turns enclosing an area of 12.0 cm^2 is rotated from a position where its plane is perpendicular to the earth's magnetic field to one where its plane is parallel to field.
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 88.0 cm, what was the speed of bullet at impact with the block.
What is the width of a single slit that produces its first minimum at 60.0° for 580 nm light, Using the slit from part (a), find the wavelength of light that has its first minimum at 62.5°
A small metal ball is given a negative charge, then brought near (i.e., within a few millimetres) to end A of the rod. What happens to end A of the rod when the ball approaches it closely this first time.
Determine the greatest vertical displacement of the pendulum (height). The mass lost by the rocket during these 30.0 is negligible. What impulse does an engine impart to the rocket?
What must the charge (sign and magnitude) of a particle of mass 1.44g be for it to remain stationary when placed in a downward directed electric field of magnitude 660 N/C.
Two slits spaced 0.500mm apart are placed 78.0cm from a screen. What is the distance between the second and third dark lines of the interference pattern on the screen
What is the frictional force
In a downtown office building you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width of each section of the door if a force of 64 N applied to the outer edgE
A parallel plate capacitor with 4.0 mm plate spacing has circular plates and holds a charge of +/- 6 uC on each plate when it is charged to a potential of 100 V. What is the radius of the plates
The current in a 100 watt lightbulb is 0.900A . The filament inside the bulb is 0.120mm in diameter. What is the electron current in the filament
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