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The position of an object connected to a spring varies with time according to the expression x = (4.8 cm) sin(9.3 ?t).
(a) Find the period of this motion.
s
(b) Find the frequency of the motion.
Hz
(c) Find the amplitude of the motion.
cm
(d) Find the first time after t = 0 that the object reaches the position x = 2.6 cm.
The diodes are oppositely oriented, so that when one diode is forward-biased, the other is back-biased. Which phrase best describes the current in the circuit.
In a popular amusement park ride, a rotating cylinder of radius 4.00 m is set in rotation at an angular velocity of 6.00 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position.
Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt, What is the maximum charge on the dome
A circuit has a battery voltage of 12.0 V, a 5.60 pF capacitor and a 300 kOhm resistor. what energy is stored in the fully charged capacitor
The Sun radiates energy at a rate of about 4×1026W. At what rate is the Sun's mass decreasing
A shotgun blast of 140 decibels occurs with humidity of 70% and temperature of 50 degrees. Illustrate what is the decibel level at 100 yards away? At 200 yards
Electrons in an x-ray tube are accelerated through 105 kV and directed toward a target to produce x-rays. Calculate the power of the electron beam in this tube
If the parachutist comes to rest with constant acceleration over a distance of 0.610 m, what force does the ground exerts on her.
It is expected to measure an X-ray peak which occurs at an angle of around 31.6g. Alter viewing the scale and pointer, with what accuracy w ill you quote the result?
(8c1p14) Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars, What is the mass of gasoline (? = 0.680 g/cm3) in a 94.6 L gasoline tank? (kg)
Speedboat A negotiates a curve whose radius is 118 m. Speedboat B negotiates a curve whose radius is 270 m. Each boat experiences the equivalent centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A person sees clearly wearing eyeglasses that have a power of -5.00 diopters, If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed
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