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1) Compute the period of a 0.123-nmX-ray.
2) An object is placed halfway among a concave mirror and its focal point. Discover the resulting magnification.
3) A 3-cm-tall object is located 8 cm in front of a concave mirror that has a 20-cm radius of curvature. Compute the resulting image height.
4) What is the minimum time it will take light to refract during a pane of glass 1 cm thick?
5) A concave mirror has a focal length of 17.0 cm. If it is forming an image 36.0 cm in front of the mirror, what is the magnification?
The sunball diameter in the calculation of the suns diameter
A tungsten target is struck by electrons that have been accelerated from rest through a 67.8-kV potential difference. Find the shortest wavelength of the radiation emitted
An electron with a speed of 7.50 x 108 cm/s enters an electric field of magnitude 1.00 x 103 N/C, How much time will have elapsed
two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 448 N and F2 = 350 N. What is the resultant of these two forces
A rectangular coil with 22 windings carries a current of 2 mA flowing in the counterclockwise direction. It has two sides that are parallel to they-axis and have length8cm and two sides that are parallel to thex-axis and have length5cm. A uniform mag..
q1. while a roofer is working on a roof that slants at 39.0 degrees above the horizontal he accidentally nudges his
A log of mass 40 kg is dropped into river at 0°C. If the relative density of the log is 0.8, what will be the volume of the log above the surface
Suppose molecules of an ideal gas are escaping by effusion through a small hole in a wall of an enclosure maintained at temp T. Calculate the mean kinetic energy of a molecule in the effusion beam Ue
in a wire with a 1.09-mm2 cross-sectional area 5.17 times 1020 electrons flow past any point during 3.73 s. what is the
A container at 300 K contains H2 gas at a pressure of one atmosphere. At this temperature H2 obeys the Boltzmann distribution. Find to what temperature must the H2 gas be cooled before quantum effects become important
A student m1 = 70 kg runs towards his skateboard, which has a mass m2 = 2.6 kg and is d = 2.8 m ahead of him. What is the velocity of student and skateboard
A doubly charged ion (charge 2e) with velocity 6.9 × 106 m/s moves in a circular path of diameter 60.0 cm in a magnetic field of 0.80 T in a mass spectrometer
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