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Question1
A projectile is launched at 28 m/s at 22 degrees (above horizontal) from the top of a building that is 62 meters above ground. It is fired from the building's edge. How far horizontally, does projectile land from the base of the building in meters?
Question2
Film camera. A 35mm camera has a standard lens with focal length 50mm and can focus on objects between 45cm and infinity.
(a) Is lens for such camera a concave or a convex lens?
(b)The camera is focused by rotating the lens, which moves it on the camera body and changes its distance from the film. In what scope of distances between the lens and the film plane have to the lens move to focus correctly over the 45cm to infinity range?
A particular fish tank filled with fresh water (n = 1.33) has a coral reef sticker stuck to an exterior wall, What is the index of refraction of the tank's walls
Three point charges, -5.2 x 10-9 C, -8.1 x 10-9 C, and +7.7 x 10-9 C, are fixed at different positions on a circle. The total electric potential at the center of the circle is -2300 V
A resistor draws 12mW when placed acriss the terminals of a 1.5V battery, Determine the current drawn by the resistor
A certain car battery with a 12.0 V emf has an initial charge of 178 A•h. assume that the potential across the terminals stays constant until the battery is totally discharged, for how long in hours can it deliver energy at the rate of 115 W.
A series RLC circuit contains a 2200 ohm resistor, a 14.0 nF capacitor, and a 0.0300 H inductor. what is the ratio of the charge to its initial value
Finally is the length is unchanged but the mass is equal to 0.500kg find the period T of the pendulum that is independent of the angle.
an artillery shell is fired with an initial velocity of 350 m/s at 50.0 degrees measured from the horizontal. it hits the side of a mountain 35.0 seconds later. What are the x and y coordinates of the shell where it explodes, if the coordinates fr..
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 25 km/h
A charged particle m=6g q=-80 c moves in a region of uniform field along a helical path (radius = 3.0 cm, pitch = 9.0 cm) as shown. Illustrate what is the angle among the velocity of the particle and the magnetic field?
A student is asked to determine thickness of film of oil (n=1.43) on surface of water n=1.33) Light travels through air to oil film to water. Calculate minimum possible thickness of oil film
A circular coil of radius 6.0 cm has 1500 turns and a total resistance of 0.25. Initially it is in a region with a uniform magnetic field of 0.25 T perpendicular to the coil area. Find the average emf induced in the coil
A child pulls an imaginary friend in a wagon at constant speed for 10m with a force of 16N. how much work does the child do
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