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What are some processes you use to distinguish among elements, compounds, heterogeneous mixtures, and homogeneous mixtures?
A rifle with a weight of 30 N fires a 5.0-g bullet with a speed of 300 m/s. If a 700-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle
A jet pilot puts an aircraft by a constant speed into a vertical loop. Which is greater, the normal force exerted on the pilot with the seat at the bottom of the loop or that at the top of the loop?
An electric field of 1.44 kV/m and a magnetic field of 0.363 T act on a moving electron to produce no net force. evaluate what is the electrons speed
A 35.0 cm diameter coil consists of 30 turns of a circular copper wire 2.80 mm in diameter. determine the rate at which thermal energy is produced
a capacitor consists of three concentric spherical shells with radii r2r and 3r. the inner and outer shells are
A vacuum cleaner produces sound by a measured sound level of55.0 dB. What is the intensity of this sound in W/m2? What is the pressure amplitude of the sound?
A mass on a string of unknown length oscillates as a pendulum with a period of 3.4 s . Parts A to D are independent questions, each referring to the initial situation. (Express your answer to two significant figures and include the appropriate uni..
A hollow, conducting sphere with an outer radius of 0.240 m and an inner radius of 0.197m has a uniform surface charge density of +6.35×106 C/m2. Calculate the strength of the electric field just outside the sphere
Unpolarized light is incident on a stack of two polarizing sheets. At what angle should the transmission axes of all polarizer be oriented (by respect to each other) so that only 1/3 of the incident intensity is transmitted?
A railroad freight car weighing 42 tons and traveling 10 m/s overtakes another freight car weighing 20 tons and traveling at 4.5 m/s in the same direction as the first. a. Find the speed and kinetic energy of the cars if they collide and couple toget..
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 6.00×10?11 mm of Hg, determine the mean free path of a molecule
Polarized light goes through two Polaroid sheets. The angle between the two sheets is 50°. what is the angle between the original light and the first sheet
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