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Q. A 5.0 kg toy race car can move along an x axis. It gives Fx of the force acting on the car, which begins at rest at time t = 0. (The vertical axis is marked in increments of 2.5 N.) what is the momentum at t=6?
Q. A cello string .75m long has a 220-Hz fundamental frequency. Find the wave speed along the vibrating string. How can you produce a low- pitch by altering the length of the string, the thickness, and tension?
A particular guitar string is supposed to vibrate at 214 Hz, but it is measured to actually vibrate at 272 Hz. By what percentage must the tension in string be changed to get the frequency to the accurate value.
suppose that the cross section of the hose opening is circular with a radius of 1.5 centimeters.
A cat, also of weight 47.8 {rm N}, falls asleep on top of block A. If block B is now set into downward motion, what is its acceleration magnitude.
A polar bear of mass 436 kg stands on an ice floe 58.10 cm thick. What is the minimum area of floe that will just support the bear in saltwater of density of 1030 kg/m3? The specific gravity of ice is 0.88.
A hiker's trip consists of three segments. Path A is 8km long heading 65 degrees north of east. Path B is 7km long in a direction due east. Path C is 4.0 km long heading 313 degrees counter clockwise from east.
The men's world record for the shot put, 23.12 m, was set by Randy Barnes of the United States on May 20; 1990.If the shot was launched from 6 ft above the ground at an initial angle of 42degrees, what was its initial speed.
Find out the edge dimension of each cube
Suppose you were performing the same experiment on this crate but were doing it on the moon instead, where the acceleration due to gravity is 1.62 m/s squared. What magnitude push would cause it to move? What will be its acceleration if you maintaine..
A long wire lying along the x-axis carries a current of 2.8 A in the +x direction. There is a uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along the cartesian coordinate axes') in units of..
What angle does water surface make with the horizontal
Light is incident on a slit 0.750 mm wide. On a screen 2.00 m away, the distance from the central maximum to the first minimum is 1.35 mm. compute the wavelength of the light.
Find an action to decrease the rise time of pulses passing through an amplifier.
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