Physics, 16.11.2020 02:00 tiffanybrown703

REALLY NEED HELP, 3 QUESTIONS 20 POINTS. ONLY ANSWER IF YOU KNOW THE CORRECT ANSWER. DO NOT ANSWER WITH "I DON'T KNOW, SORRY" JUST FOR THE POINTS. Thanks very much, have a great day. ( I Will report you if you answer with "I don't know, sorry" 1) A spring with a natural height of 60 mm is compressed by a 300 g mass to a new height of 54 mm.
 Find the spring constant in SI units.
 Find the height of the spring if the 300 g mass were replaced by a 400 g mass

2) A spring is stretched by 2m with a force of 100 N. Calculate its spring constant.

3) You have just bought an innerspring mattress that contains coil springs in a rectangular array 20 coils wide and 40 coils long. You estimate that when you lie on the mattress, your weight is supported by about 200 springs (about one-fourth of the total number of springs in the mattress). You observe that the springs compress
about 2.0 cm when you lie on the mattress. Assuming that your weight of 600 N is supported equally by 200 springs, find the force constant of each spring.

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 03:50

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

Answers: 1

Answer

Physics, 22.06.2019 07:30

The slope of a velocity time graph over any interval of time gives the during that interval

Answers: 2

Answer

Physics, 22.06.2019 14:10

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?

Answers: 1

Answer

Physics, 22.06.2019 18:30

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.

Answers: 2

Answer

You know the right answer?

REALLY NEED HELP, 3 QUESTIONS 20 POINTS. ONLY ANSWER IF YOU KNOW THE CORRECT ANSWER. DO NOT ANSWER W...

Questions