7.
Zena has a model plane attached to a rod as shown below.
The plane is balanced by a sliding...
Physics, 05.02.2021 02:50 cjd1214812148
7.
Zena has a model plane attached to a rod as shown below.
The plane is balanced by a sliding counterweight.
sliding
counterweight
10 cm
20 cm
rod
pivot
5 N
not to scale
St George's Catholic School
Page
(a) The rod is balanced horizontally.
Calculate the turning moment produced by the counterweight about the
pivot.
Give the unit.
KANNN
2 mark
Answers: 1
Physics, 22.06.2019 01:00
15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?
Answers: 2
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
Physics, 22.06.2019 16:20
Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius
Answers: 1
Physics, 22.06.2019 22:00
What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane
Answers: 3
Computers and Technology, 30.03.2020 19:24
English, 30.03.2020 19:25
Physics, 30.03.2020 19:25
Mathematics, 30.03.2020 19:25
Biology, 30.03.2020 19:25
Computers and Technology, 30.03.2020 19:25