Physics, 18.05.2021 06:00 kimbely7704
In a refrigerator, energy is used to make thermal energy flow from the inside of the refrigerator to the outside. Use a law of thermodynamics to explain why thermal energy will not move in this direction naturally
Answers: 2
Physics, 21.06.2019 20:30
3. on your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. locate these elements on your periodic table. what term or description would you use to identify these elements with respect to the periodic table?
Answers: 2
Physics, 22.06.2019 11:20
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
Physics, 22.06.2019 14:30
Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?
Answers: 3
Physics, 22.06.2019 15:30
An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?
Answers: 1
In a refrigerator, energy is used to make thermal energy flow from the inside of the refrigerator to...
Arts, 05.03.2021 20:00
Business, 05.03.2021 20:00
Mathematics, 05.03.2021 20:00
French, 05.03.2021 20:00
Mathematics, 05.03.2021 20:00
Mathematics, 05.03.2021 20:00
Mathematics, 05.03.2021 20:00
Physics, 05.03.2021 20:00
English, 05.03.2021 20:00
Mathematics, 05.03.2021 20:00
Biology, 05.03.2021 20:00
Mathematics, 05.03.2021 20:00
Advanced Placement (AP), 05.03.2021 20:00