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shutvik [7]
3 years ago
9

A scientist studies the effect of adding different amounts of salt on the boiling point of water. He places his results in the g

raph below. what are the independent and dependent variables in this experiment?
Physics
2 answers:
den301095 [7]3 years ago
5 0
The amounts are the independent boiling water is dependent

Phantasy [73]3 years ago
4 0

Answer: The amount of salt- independent variable

The boiling point of water- dependent variable

Explanation:

An independent variable can be manipulated manually in an experiment the result of this manipulation can be observed on the dependent variable. The dependent changes with respect to the independent variable.

In the given experiment the amount of salt is the independent variable as the amount of the salt can be changed or manipulated. The effect of such change can be observed on the dependent variable that is the boiling point of water.

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DiKsa [7]

Answer:

true

Explanation:

5 0
2 years ago
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Potential Energy Equation (GPE = mgh)
Shkiper50 [21]

Answer:

10

Explanation:

weight=25x9.2=230

25x9.2x10=2300

2300/230=10

6 0
2 years ago
A hoop (I = MR2) of mass 3 kg and radius 1.1 m is rolling at a center-of-mass speed of 11 m/s. An external force does 842 J of w
Scilla [17]

Answer:

v_f = 20 m/s

Explanation:

Since the hoop is rolling on the floor so its total kinetic energy is given as

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now for pure rolling condition we will have

v = R\omega

also we have

I = mR^2

now we will have

KE = \frac{1}{2}mv^2 + \frac{1}{2}(mR^2)\frac{v^2}{R^2}

KE = mv^2

now by work energy theorem we can say

W = KE_f - KE_i

842 J = mv_f^2 - mv_i^2

842 = 3(v_f^2) - 3\times 11^2

now solve for final speed

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3 0
3 years ago
What is the difference between radial acceleration and tangential acceleration and how do you calculate both of these accelerati
sergey [27]

Answer:

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a = (V2 - V1) / T

Radial acceleration is perpendicular to the direction of motion if the object is not moving in a straight line (perhaps along the circumference of a circle)

a = m V^2 / R = m ω^2 R   where R is the radius vector of the velocity - note that the Radius vector is directed from the center of motion to the object and for circular motion would be constant in magnitude but not  in direction

8 0
2 years ago
Robert hook used an early microscope to observed a cork sample. How did this help contribute to cell theory?
Lady bird [3.3K]

Answer:

Robert Hooke used an early microscope to observe a cork sample. How did this help contribute to cell theory? It helped to show that cells contain water. ... It helped to show that some cells are visible to the naked eye.

Explanation:

If your teacher checks if it was copied just put it in your on words

3 0
3 years ago
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