Why would an object float in water, but sink in rubbing alcohol?

Physics

1 answer:

Romashka [77]2 years ago

6 0

Because water is more dense than the object but rubbing alcohol is less dense than the object

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An airplane undergoes the following displacements, all at the same altitude: First, it flies 59.0 km in a direction 30.0° east o

ddd [48]

Answer:

B) 71.5 [km]

Explanation:

To solve this problem we will decompose each of the directions in the x & y axes.

To solve this problem we will decompose each of the directions in the x & y axes. also for a greater understanding of the angles, you should look at the attached image, which contains the orientations for each angle (clockwise or counterclockwise).

59.0 km in a direction 30.0° east of north

$d_{1x}= 59*sin(30) = 29.5[km]\\d_{1y}= 59*cos(30) = 51.09[km]$

58.0 km due south

$d_{2y} = - 58 [km]\\$

It flies 100 km 30.0° north of west

$d_{3x}= - 100*cos(30) = -86.6[km]\\d_{3y} = 100*sin(30)= 50 [km]$

Now we sum algebraically the components

$d_{x}=29.5-86.6 = -57.1[km]\\d_{y}=51.09 -58+50=43.09[km]\\\\$

Using the Pythagorean theorem we can find the magnitude of the displacement.

$d = \sqrt{(57.1)^{2} +(43.09)^{2} } \\d= 71.53[km]$

7 0

3 years ago

Can you see an apple in the dark?

abruzzese [7]

No. Because the color of the apple is red.

8 0

2 years ago

Go around your house and hit (or tap) ten different objects. The objects should be different shapes and made of different materi

Blababa [14]

Answer:

Explanation:

go around your house and tap random objects. For example, a sink. What noise did it make? was it loud or quiet? was it soft or hard? I hope this helps

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2 years ago

Read 2 more answers

Weight is influenced by which of the following

nignag [31]

Out of the given options, weight is influenced by mass and gravity

Answer: Option A

Explanation:

The object's mass is defined as the quantity of a matter with which the object is formed. It can change its state of matter but the quantity will remain the same. However, the weight is defined as how much force gravity exerts on the object's mass to pull it.

The mass is always same irrespective the location but the weight may vary from one place to the other while talking for the bigger picture. For example, the object's weight may be 60 kg on Earth but when it is measured on the moon, it will be lesser.

The weight of an object generally has nothing doing with the volume and it doesn't depend solely on the gravitational pull. The mass plays a crucial role.

$W=F=m \times g$