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A concave cosmetic mirror has a focal length of 24 cm. A 5.0 cm -long mascara brush is held upright 12 cm from the mirror.Use ray tracing to determine the location of its image.Use ray tracing to determine the height of its image.Is the image upright or inverted?Is the image real or virtual?
Given a configuration of three charged particles such that q1= 5.30 nC at (1.50 m, 0.0 m), q2= 9.20 n C at (0.00 m, 2.00 m) and q3= -2.40 nC at the origin
A child in a boat throws a 5.15-kg package out horizontally with a speed of 10.0 m/s. Calculate the velocity of the boat immediately after, assuming it was initially at rest
A rectangular loop of 250 turns is 20.8 cm wide and 16.5 cm high. What is the current in this loop if the maximum torque in a field of 0.410 T is 23.1 N·m
The source of our Sun's energy is a series of fusionreactions. Mainly, four protons become a helium nucleus plus twopositrons, plus two neutrinos (which have no rest mass), plusenergy which is radiated.
Two identical boxcars (m = 15730 kg) are traveling along the same track but in opposite directions. what will be the final speed of the pair
A wheel initially rotating at an angular speed of 2.4 rad/s turns through 30 revolutions during the time, How long did the acceleration last
A runner covers one lap of a circular track 40.0m in diameter in 63.5s, what was her average speed for that half-lap
in a hurricane, the air (density 1.2kg/m3) is blowing over the roof of a house at a speed of 104km/hr. what is the lifting force on the roof of area 100m2
Consider a roller coaster as it travels near the bottom of its track, what is the radius of curvature of the track
A transformer is constructed that has 120 turns of wire on the primary side and 430 turns of wire on the secondary (load) side. what is the AC current measured on the secondary side
What mass (in grams) of steam at 100°C must be mixed with 403 g of ice at its melting point, in a thermally insulated container, to create liquid water at 87°C? The specific heat of water is 4186 J/kg•K. The latent heat of fusion is 333 kJ/kg, and..
The two charges in the figure above are separated by a distance d = 5.00 cm, and Q = +5.70 nC. Find the electric potential at B
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