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Stolb23 [73]
3 years ago
13

How can the density of irregularly shaped objects can be calculated?

Physics
1 answer:
Aleks04 [339]3 years ago
6 0
1.Use the balance to find the mass of the object. Record the value on the "Density Data Chart."
2.Pour water into a graduated cylinder up to an easily-read value, such as 50 milliliters and record the number.
3.Drop the object into the cylinder and record the new value in millimeters.
4.The difference between the two numbers is the object's volume. Remember that 1 milliliter is equal to 1 cubic centimeter. Record the volume on the data chart.
5.Compute the density of the object by dividing the mass value by the volume value. Record the density on the data chart.
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A 331 N stoplight is hanging in equilibrium from cables as shown. The tension in the right cable is 550 N, and it makes an angle
Ksju [112]
<u>The correct answer is 580.

</u>The upward force the right tension cord exerts on the traffic light is equal to about 114.35 N. Because the stoplight is being help upright the natural force (upward force) provided by both tension cords must be equal to the gravitational (downward) force of the traffic light which is 331.
If 114 is the upward force on the right side then 216 N must be the force provided by the left side.
You then have a right triangle with the length opposite theta = about 216 and theta = 22. So sin(22)* X = 216, where X is the length of the hypotenuse, or the force found in the left cord.
with sig figs added to the mix the answer is 580 N

I believe the answer is true to the E dgenuity physics course 


8 0
4 years ago
TRUE OR FALSE : Boyle’s law states that, as the pressure of a gas increases, the volume decreases.
White raven [17]

True, but only if the temperature of the gas doesn't change ...
which is pretty hard to manage when you're compressing it.

I think Boyle's law actually says something like

       (pressure) x (volume) / (temperature)  =  constant.

So you can see that if you want to say anything about two of the
quantities, you always have to stipulate that the statement is true
as long as the third one doesn't change.


6 0
3 years ago
Read 2 more answers
What is 4 differences between saturated unsaturated and supersaturated solutions
Dennis_Churaev [7]

Answer:

Unsaturated Solution: Less amount of salt in water, clear solution, no precipitation. Saturated Solution: The maximum amount of salt is dissolved in water, Colour of the solution slightly changes, but no precipitation. Supersaturated Solution: More salt is dissolved in water, Cloudy solution, precipitation is visible.

3 0
3 years ago
Which of the following terms best describes why a skier sliding down a hill eventually comes to a stop?
natta225 [31]
Acceleration means you go faster 
inertia means it has a tendency to do nothing or remain unchanged
gravity is what pulls things down to earth
<span>Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. 
so i would say friction</span>  
6 0
3 years ago
Read 2 more answers
Explain the conditions through which friction can be increased.​
Rufina [12.5K]

Answer:

Friction can be increased the longer two objects are rubbed together, since the longer they are rubbed is the more heat produced.

Explanation:

8 0
3 years ago
Read 2 more answers
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