Physics, 12.10.2019 16:30, babyraerae06
Aspring with a force constant of 167 n/m is compressed 1.0 cm. the work done on the spring is?
Answers: 1
Physics, 22.06.2019 04:00, DragonLovely
19. explain why a magnet from your refrigerator could not be used to lift something as heavy as a car. (chapter 7 โ pages 202-203) 20. can a magnet ever have a single pole? explain your answer. (chapter 7 โ page 208) 21. what happens to the wavelength of a wave if the frequency is increased? (chapter 9 โ pages 280-281) 22. an ocean wave has a wavelength of 10 m and a frequency of 4.0 hz. what is the velocity of the wave? show the appropriate equation from your book and show your work with units. (chapter 9 โ page 282) 23. as you sit outside, the sound of a siren becomes lower in pitch. is the emergency vehicle moving away from or towards you? explain how you know. (chapter 10 โ page 315-316) 24. why are two astronauts in space unable to hear one another? (chapter 10 โ page 307) 25. explain in at least 3 sentences how electromagnetic waves form. (chapter 11 โ page 338-339) 26. using the chart on page 345 in your textbook, what are the three types of electromagnetic wave with wavelengths shorter than those of visible light. give an example of each. (chapter 11 โ pages 345-351) 27. explain why a leaf usually appears to be green, but a rose typically appears red. (chapter 12 โ page 373) 28. what is the difference in light that is refracted compared to light that is reflected? think in terms of speed of light as well as what happens to light waves when they interact with a medium. (chapter 12 โ pages 369-370) 29. how are concave and convex lenses different? (chapter 13 โ page 408-410) 30. what type of mirror is used in rearview mirrors in cars? why is it important that these mirrors have the warning, โobjects in mirror are closer than they appear.โ? (chapter 13 โ page 405)
Answers: 3
Physics, 22.06.2019 10:30, Bayabbay8380
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
Physics, 22.06.2019 18:30, sarinaneedshelp01
A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?
Answers: 3
Aspring with a force constant of 167 n/m is compressed 1.0 cm. the work done on the spring is?...
Mathematics, 30.01.2021 06:50
Mathematics, 30.01.2021 06:50
Advanced Placement (AP), 30.01.2021 06:50
Mathematics, 30.01.2021 06:50
World Languages, 30.01.2021 06:50