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A rock falls off the back bumper of a truck which is traveling at 26.8 m/s. The rock hits the ground 0.387 seconds after it leaves the bumper.
A) How far does the rock travel horizontally until it first hits the road?
B) How high above the road is the trucks bumper?
Blocks A and B are connected across a frictionless pulley by a cord of negligible weight. If block B lies on a horizontal, frictionless surface and block A hangs vertically, what can be said about the acceelration of block B?
A mirror that is spherical has a focal length of -15 cm. what type of image would it be, What is the magnification going to be
A guitar string of diameter 0.79 mm and length 1 m is subject to a tension of 182 N. what is the Young's modulus of the string
A laser with wavelength d/8 is shining light on a double slit with slit separation 0.450 mm. What is the wavelength of the second laser
q1. suppose that the two speakers are separated by 2.50 m and are vibrating exactly out of phase at a frequency of 429
A string attached to an oscillator at one end forms 5 nodes (counting the two ends) and produces a frequency of ? = 1.5 kHz. What is the linear density of the string
How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than as the car is stationary? The speed of sound is 343 m/s.
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field. Given the charge on the ball is 2.00 ?C , find the strength of the field. The angle that the string makes with the vertical is 8.00° N/C.
A 2.0kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 360m/s, find the speed of the block immediately after the bullet exits
If an average frequency emitted by a 200,-,rm W light bulb is 5.00 times 10^{14} , {rm Hz}, and 10.0 percent of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second .
a 741 kg stopped at a intersection is rear ended by a 1580kg truck moving at 17.5 m/s. Find final speeds of both vehicles
A VW Beetle goes from 0 to 99.0 mi/h with an acceleration of +3.90 m/s2. How much time does it take for the Beetle to reach this speed
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