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Physics, 16.07.2021 22:00, rhettperkins
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Post Test: Chemical Reactions
4
Drag the tiles to the correct boxes to complete the pairs.
Match the chemical reactions with their properties.
Yes
Answers: 3
Physics, 21.06.2019 22:50, periwinkleaqua72
An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?
Answers: 3
Physics, 22.06.2019 00:10, oktacos
The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0Ā°c to 8.0Ā°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and Ī“t is the observed temperature change. if the specific heat of liquid water is 4.19 j/gĀ·Ā°c, how much energy was absorbed by the reaction?
Answers: 3
Physics, 22.06.2019 10:40, itsyagirl11076
Two point charges are on the y axis. a 3.90-Āµc charge is located at y = 1.25 cm, and a -2.4-Āµc charge is located at y = ā1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v
Answers: 1
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