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A Ferris wheel with a radius of 20m makes 1 revolution every 9seconds. What force does a 55kg passenger exert on the seat when she is at the top of the Ferris wheel.
The separation between hydrogen and chlorine atoms of the HCl molecule is about 1.30 × 10-10 m. What the location of the center of mass of molecule is as measured from the hydrogen atom (Chlor
Assume that the sun runs out of nuclear fuel and suddenly collapses to form a white dwarf star, with a diameter equal to that of the Earth.
A meter stick supported at the 50 cm mark has masses of 300 g and 200 g hanging from it at the 10 cm and 60 cm mark, respectively. Where must we hang a third, 400 g mass to keep the meter stick bala
The specific heat of a certain 50g metallic block is 900J/kg K. If the block is at an initial temperature of 80degrees Celsius, and dropped into a 50g bucket of water at 1 degree Celsius, what is th
An aluminum rod 15 cm in length is heated from 10 degrees Celsius to 50 degrees Celcius. What is the change in length.
What is Kepler's first law of planetary orbits. What is the change in length.
A Cassegrain astronomical telescope uses two mirrors to form the image. The larger (concave) objective mirror has a focal length f1 = +51.50 cm. A small convex secondary mirror is mounted d = 43.50
Calculate distance from the mirror to the point where the reflected rays meet.
An object with a height of 42cm is placed 2.20 m in front of a concave mirror with a focal length of 0.45 m. Find out the location and magnification of the image produced by the mirror, using the mi
A person's prescription for her new bifocal glasses calls for the refractive power of -0.461 diopters in the distance-vision part, and a power of +1.83 diopters in the close-vision part.
What mass of water at 29 °C added to a Styrofoam cup containing two 60 g ice cubes from a freezer at -16.0°C will result in a final temperature of 5 °C for the drink.
Find the rate of heat transfer passing from the boiling water to the ice bath.find the rate of heat transfer passing.
Calculating the heat absorbed by the gas, change in volume of the gas, and work done by the gas through expansion.
What will be the time constant in a RC circuit when R = 200 kohms and C = 10mf.
Calculating the rise time of a pulse and finding what is caused to the charge carrier transmit time when the pulse is amplified.
In an assured RL time constant circuit, it takes 135 msec for the current to reach maximum after the switch is closed. If the inductance is 4 henrys, what is the value of circuit resistance.
Which of the following will most likely cause arcing at the switch contacts.
In a certain circuit the output signal is NOT permitted to exceed a certain value even though the input signal tries to drive it beyond that value. What is the circuit.
What is the bandwidth of an amplifier that produces a square wave with a rise time of 2 msec? (Microseconds)
To transmit only portions of an input wave lying on one side of an amplitude boundary, you will use a.
Calculate the average value of a pulse and understanding that the monostable multivibrator is a one shot multivibrator.
How long will it take for the current to reach 36.7 percent of its initial value in an inductive discharge circuit if R equals 1000ohms and L equals 4 henrys.
Finding a circuit to change the relationship between the waveform and the zero-volt axis and calculating the period of the waveform.