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professor190 [17]
4 years ago
14

What is the variable that is manipulated by the experimenter during an experiment called

Physics
1 answer:
larisa [96]4 years ago
3 0
Independent variable
The independent variable is the variable that is controlled and manipulated by the experimenter. For example, in an experiment on the impact of sleep deprivation on test performance, sleep deprivation would be the independent variable.
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Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. The astronaut has her lucky penn
scZoUnD [109]

Oct 27, 2015 - In The Martian, astronaut Mark Watney and his crewmates onboard ... is grossly unqualified to challenge the science behind The Martian. ... of Space on the Law of the Sea, that Treaty has thus far been signed by only a handful of nations, none of which have their own ability to launch astronauts into space ...

4 0
4 years ago
A rock is thrown horizontally from a bridge with a velocity of 17.0 m/s. It takes the rock 3.0 s to strike the water below. What
zalisa [80]

Answer:

V= 33.98 m/s

Explanation:

Given that

Horizontal speed ,u= 17 m/s

Time taken by rockets to strike the water ,t= 3 s

We know that acceleration due to gravity ,g= 9.81 m/s²

There is no any acceleration in the horizontal direction that is why the horizontal veloity will remain constant.

In the vertical direction

vy = uy+ g t

Initial velocity in vertical direction is 0 m/s.

vy= 0+ 9.81 x 3

vy = 29.43 m/s

The resultant velocity

V=\sqrt{v_y^2+u^2}

V=\sqrt{29.43^2+17^2}\ m/s

V= 33.98 m/s

7 0
4 years ago
Light of wavelength 550 nm falls on a slit that is 3.50 x 10^-3 mm wide. How far from the central . maximum will the first diffr
myrzilka [38]
Λ= 550 * 10^{-9}\] m.

D = 3.50*10^-6 m.
d = 10 m. 

m = 1

2x = ?

Then you need to find x when n=1
or 
sinθ=λ/w=524x10^-9/0.0033=1.59x10^-4
≈θ for θ<<1 , so θ=1.59x10^-4 radians

Then you can find rhe distance of<span> bright fringe from the center:</span>d= θD=1.59x10^-4x10m ≈ 1.6 mm
6 0
4 years ago
Question 25 of 25 What is a limitation of modeling the effect of gravity on a falling object by using a ball dropped from differ
agasfer [191]

Answer:

Air slows down The fall of any object including a ball.

5 0
3 years ago
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Air pollution is an example of a. The underground economy. B. An external shock. C. A nonmarket activity. D. A negative external
devlian [24]

Answer:

D. A negative externality.

Explanation:

Particulate pollution is a form of pollution that is responsible for the degradation of the environment.

Particulate matter is also referred to as particle pollution or atmospheric aerosol particles and it can be defined as a complex microscopic mixture of liquid droplets and solid particles that are suspended in air.

An externality is typically an unwarranted cost or benefit by a manufacturer or producer of goods and services that affects a third party.

In Economics, an externality could either be positive or negative depending on its effect on a third party.

A negative externality arises when the production or consumption of a finished product or service has negative impact (cost) on a third party.

In conclusion, air pollution is an example of a negative externality because it causes harm to a third party.

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3 years ago
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