Answers: 3
Another question on Physics
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 04:20
Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?
Answers: 2
Physics, 22.06.2019 07:00
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
Physics, 22.06.2019 07:10
Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?
Answers: 2
You know the right answer?
What role do chloroplasts play in plants? plz explain...
Questions
English, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Biology, 30.11.2021 14:00
Social Studies, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Computers and Technology, 30.11.2021 14:00
Biology, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Mathematics, 30.11.2021 14:00
Chemistry, 30.11.2021 14:00
