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Two trucks that appear to be identical col-lide on an icy road. One was originally at rest. The trucks are stuck together and move at more than half the original speed of the moving truck. What can you conclude about the contents of the two trucks?
A refracting telescope has an objective and an eyepiece that have refractive powers of 1.25 diopters and 300 diopters, respectively. Find the angular magnification of the telescope
An object of size 3cm is placed 14cm in front of a concave lens of focal length 21 cm. decsribe the image formed by the lens. What happens , if the object is moved further away from the lens
Calculate what is the total charge (in coulombs) on all the electrons in 7 kilogram of water (H2O)
an engineering student has made a robot mouse that is running around a circle on a horizontal table. the mouse is kept
If the angular velocity is held constant and the radius is doubled, how does the force required change
A string under a tension of 60.0 N is used to whirl a rock in a horizontal circle of radius 2.70 m at a speed of 20.5 m/s on a frictionless surface as shown in the figure below. As the string is pulled in, the speed of the rock increases. When the st..
A car with a total mass of 1.65*103 kg has wheels ofradius 35.0 cm and moment of inertia 0.760 kg ·m2. Suppose that the wheels were then replaced byoversized wheels of the same shape and made of the same materials, but 49% wider and witha 49% larg..
The coefficient of static friction among the floor of a truck and a box resting on it is 0.26. The truck is traveling at 84.1 km/hr. What is the least distance in which the truck can stop and ensure that the box does not slide?
the position of an object moving in a straight line is given by x 53.0t - 40t2 -20t3 where x is in meters and t in
An electron, starting from rest, accelerate through a potential difference of 510 Volt. Obtain the final de Broglie wavelength of the electron
Double slits of 0.115 mm separation are placed at the front of a lecture room that is 17.1 m long. what is the separation between the first two bright fringes
A massless rod of length 1.00 m has a 2.00-kg mass attached to one end and a 3.00-kg mass attached to the other. What is the angular speed of this system
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