GIVE ME THIS PRONTO
please! its the day befor the samester ends!!!
In Hooke's law, Fspri...
GIVE ME THIS PRONTO
please! its the day befor the samester ends!!!
In Hooke's law, Fspring=kΔx, what does the k stand for?
the amount of force acting on the spring
the constant of gravity
the elastic constant, a number that tells the relative strength of the spring
the distance the spring stretches
Answers: 2
Physics, 21.06.2019 22:50
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
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 30.0°c to 8.0°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 δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?
Answers: 3
Physics, 22.06.2019 05:40
An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
Answers: 1
Physics, 22.06.2019 10:00
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Mathematics, 22.03.2021 01:00
Chemistry, 22.03.2021 01:00
Biology, 22.03.2021 01:00
Mathematics, 22.03.2021 01:00
Mathematics, 22.03.2021 01:00
English, 22.03.2021 01:00
Mathematics, 22.03.2021 01:00
Mathematics, 22.03.2021 01:00
Mathematics, 22.03.2021 01:00
History, 22.03.2021 01:00
Biology, 22.03.2021 01:00