subject
Physics, 13.01.2021 20:40 gamer0078

You shove a chair with wheels(and let it go)and it starts moving across the floor. However, the chair soon shows down and comes to a complete stop. To keep the chair moving, you need to keep pushing on it. This simple experiment implies that ;

A) Newton's first law, or the law of inertia, does not apply to a chair moving horizontally
B) The action-reaction forces act on the chair and cancel each other
C) A net force in the direction opposite to the motion of the chair acts to slow it down
D) The weight of the chair slows it down

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 3
question
Physics, 22.06.2019 04:30
The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
Answers: 1
question
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
question
Physics, 22.06.2019 16:00
The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )
Answers: 2
You know the right answer?
You shove a chair with wheels(and let it go)and it starts moving across the floor. However, the chai...
Questions
question
Mathematics, 13.04.2021 17:50
question
Mathematics, 13.04.2021 17:50
question
English, 13.04.2021 17:50
Questions on the website: 13722359