Physics, 08.03.2021 07:40 pollywallythecat

A meter stick has a mass of 200 g. It is balanced on a fulcrum at the 50 cm mark and there is a 100 g mass at the 100 cm mark. Where do you place another 100 g mass and keep this system balanced (at what reading on the meter stick)?
A)At the 0 cm mark.
B)At the 25 cm mark.
C) At the 50 cm mark.
D)At the 100 cm mark.

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 08:30

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

Answers: 3

Answer

Physics, 22.06.2019 13:30

Why do astronauts in the space shuttle weigh less?

Answers: 3

Answer

Physics, 22.06.2019 14:20

Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.

Answers: 1

Answer

Physics, 22.06.2019 14:20

How many atoms of nitrogen are in the chemical formula ni(w on

Answers: 1

Answer

You know the right answer?

A meter stick has a mass of 200 g. It is balanced on a fulcrum at the 50 cm mark and there is a 100...

Questions