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An object is placed 10 cm in front of a concave mirror whose focal length is 17 cm. The object is 3.02 cm tall. Using a ray diagram drawn to scale, gauge the location and the height of the image. The mirror should be drawn to scale.
A steel rod has a length of exactly 0.2cm at 30degree centigrade. what will be its length at 60degree centigarde?
the earths magnetic field can affect the electron beam in an oscilloscope or a television tube. an electron that has
frictionless surface and are pushed together with a compressed spring between them. The spring has a spring constant of 154 N/m and the spring is compressed a distance of 2.5 m.
You have a beach ball which has a radius of 11 cm and a mass of 0.3 kg. You have a lead ball which has the same radius but has a mass of 120 kg. What is the buoyancy force felt by the beach ball
a 75 kg swimmer dives horizontally off a 500 kg raft. if the divers speed immediately after leaving the raft is 4 ms
a 40 figure skater is spinning on the toes of her skates at 0.60 . her arms are outstretched as far as they will go. in
At the top of a giant swing on the gymnastics high bar, Candy's velocity is 1 m/s, and she is 3.5 m high. what is her total mechanical energy at this instant
Despite the (incorrect) interpretation that a tunneling particlehas a negative kinetic energy, it turns out that a measurement of anegative kinetic energy is inconsistent with the postulates ofquantum mechanics. Prove it using the "probability postul..
The drawing shows a circus clown who weighs 980 N. The coefficient of static friction between theclown's feet and the ground is 0.42. Hepulls vertically downward on a rope that passes around threepulleys and is tied around his feet.
two particles are fixed to an x axis particle 1 of charge q1 2.43 x 10-8 c at x 22.4 cm and particle 2 of charge q2
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles, What is the force between the two alpha particles when they are 3.00x10^-15 m apart
a buckey ball is a large molecule comprised of 60 carbon atoms arranged in a shape something like a hollow sphare
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