Physics, 31.08.2019 01:30, jjaerere6609
How much energy, in joules, is released when 17 kilograms of granite is cooled from 45°c to 21°c?
a. 785,662.8 j
b. 901,980.3 j
c. 365,575.3 j
d. 327,992.8 j
Answers: 2
Physics, 21.06.2019 16:00, amoakoh800003
As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.
Answers: 1
Physics, 22.06.2019 01:00, blesskids600
An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.
Answers: 1
Physics, 22.06.2019 10:40, itsyagirl11076
Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 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
Physics, 22.06.2019 11:20, cjd1214812148
The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)
Answers: 3
How much energy, in joules, is released when 17 kilograms of granite is cooled from 45°c to 21°c? <...
Mathematics, 27.03.2021 22:30
Mathematics, 27.03.2021 22:30
Computers and Technology, 27.03.2021 22:30
Business, 27.03.2021 22:40
Business, 27.03.2021 22:40
English, 27.03.2021 22:40