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A lamp which is 11.5 cm tall is in front of a concave mirror which has a focal length of 66.0 cm.
(a) How tall is the lamp's image if the lamp is a distance of 39.6 cm from the mirror (include sign if negative)?
(b) How tall is the lamp's image if the lamp is a distance of 85.8 cm from mirror (include sign if negative)?
(c) How tall is the lamp's image if the lamp is a distance of 145.2 cm from the mirror?
What are the d irections of electric field
Two Automobiles traveling at right angles to each other collide and stick together. Car A has a mass of 1200 kg and had a speed of 25 m/s before the collision, What was the speed of car B before the collision
15. An object weighing 300 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 265 N. find the density of the object
If 1.00 mol of oxygen is heated at constant pressure of 1.00 atm from 10.0?C to 25.0?C. What is the change of volume of the gas in this process
A 2.65 kg object is moving in a plane, with its x and y coordinates given by x = 2t2 - 3 and y = 2t3 + 6, where x and y are in meters and t is in seconds. Find out the magnitude of the net force acting on this object at t = 2.00 s.
You select a rental package that includes a car with an average consumption of 6rm liters of fuel per 100 rm km. Considering that in Europe average fuel cost is 1.063 rm euros/ liter, how much (in US dollars) will you spend in fuel in your trip.
Electrons are ejected from a metallic surface with speeds ranging up to 4.60 × 105 m/s when light with a wavelength of 625 nm is used. a)What is the work function of the surface? b) What is the cutoff frequency for this surface?
A 2.10 x 10^3 kg car starts from rest at the top of a 4.70 m long driveway that is inclined at 25° with the horizontal. If an average friction force of 4.0 x10^3 N impedes motion, find out the speed of the car at the bottom of the driveway.
A bumper car with mass m1 = 129 kg is moving to the right with a velocity of v1 = 4.50 m/s. A second bumper car with mass m2 = 86.0 kg is moving to the left with a velocity of v2 = -3.6 m/s. The two cars have an elastic collision. Suppose the surface..
A proton and an alpha particle are released from rest when they are 0.225nm {\rm nm} apart. Find the maximum speed of proton
Evaluate what is the distance between the two dark fringes on either side of the central bright fringe?
A particle known as a pion lives for a short time before breaking apart into other particles. What is the lifetime according to a hypothetical person who is riding along with the pion
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