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When radium 226 decays emitting an alpha particle, what is the atomic number and atomic mass of the resulting nuclei? Please show your work and write (preferably type) legibly.
A 66-g ice cube at 0°C is placed in 865 g of water at 26°C. What is the final temperature of the mixture
Refraction is caused by the fact that
Protons in cosmic rays have been observed with kinetic energies as large 3.00 ×108 eV. How fast are these protons moving
Coherent light with wavelength of 602 passes by two very narrow slits and the interference pattern is observed on a screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central bright..
Name the four common halogens and tell the normal phase of each. Which one is the most reactive of all elements? Explain why sodium iodide is added to table salt. List some common uses for alkaline earth metals and their compounds.
What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 206 km above Earth's surface, What is the period of revolution
A rubber ball with a mass of 0.160 kg is dropped from rest. From what height was the ball dropped, if the magnitude of the ball's momentum is 0.770 kg·m/s just before it lands on the ground?
a 86 mm focal-length lens is used to focus an image on the film of a camera. the maximum distance allowed between the
In a thundercloud there may be an electric charge of +40 C near the top of the cloud and -40 C near the bottom of the cloud. Obtain the potential energy stored in the cloud
a thin lens has radii of curvature r1-8.00 cm and r2-6.00 cm indices of refraction nred1.50 and nviolet1.53 for red and
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. the
A potential di?erence of 10 V is found to produce a current of 0.44 A in a wire of length 3.1 m with a uniform radius of 0.44 cm What is the resistivity of the wire
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