Answers: 2
Physics, 21.06.2019 13:00
Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:
Answers: 3
Physics, 22.06.2019 01:00
An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10
Answers: 3
Physics, 22.06.2019 06:30
Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults
Answers: 1
Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
As an astronaut goes out into space, her mass and her weight...
History, 24.06.2019 02:50
History, 24.06.2019 02:50
Mathematics, 24.06.2019 02:50
History, 24.06.2019 02:50
Mathematics, 24.06.2019 02:50
History, 24.06.2019 02:50
Mathematics, 24.06.2019 02:50