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An air-track glider attached to a spring oscillates between the 12.0 cm mark and the 55.0 cm mark on the track. The glider completes 15.0 oscillations in 37.0 s. What are the
(a) period,
(b) frequency,
(c) amplitude, and
(d) maximum speed of the glider?
Inside a sealed wooden box of mass M there hangs, by a thread of negligible mass, a lead pellet also of mass M. What is the acceleration of the center of mass of the system of box
With cooperation acrobats in circular rotating cages that are attached to two beams in a shape of a cross (one cage attached to each end of the beam) can rotate the beams. Where does this energy come from
A metal sphere is suspended by a silk thread and charged positively. If in carrying a positive charge of 5.0E-8 C, what is the potential difference between the ground and the sphere
In the Bohr model of the hydrogen atom the electron orbits the proton in a circular orbit. Calculate the orbital frequency of the electron
a room measures 50x3020. the dilution volume flow rate is 3000 cfm. at 800 am the concentration of a contaminant is 50
A 984-kg satellite orbits the Earth at a constant altitude of 106-km. What is the change in the system's potential energy
A 1.5-m-diameter vat of liquid is 2.3m deep. The pressure at the bottom of the vat is 1.3atm What is the mass of the liquid in the vat
A monochromatic beam of light of wavelength 720 nm is incident normally on a diffraction grating with 4,000 lines/cm. What is the angle for the first order maximum
A 4-g bullet is fired into a 1.4-kg block that is resting on a table. After impact, What was the initial speed of the bullet?
From the shore of a frozen lake, a QB throws a 2 kg football at a velocity of 20 m/s. How far does the person slide before they come to a stop
Plane leaves the airport in Galisto and flies a distance 180 at an angle 68 east of north and then changes direction to fly the distance 250 at an angle 48 south of east, after which it makes an immediate emergency landing in a pasture.
q1. two trains each having a speed of 38 kmh are headed at each other on the identical straight track. a bird that can
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