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Flura [38]
2 years ago
5

A block of aluminum has a volume of 15.0 ml and a mass of 50.5 g. the density is ___________. group of answer choices

Physics
1 answer:
VARVARA [1.3K]2 years ago
8 0

A block of aluminum has a volume of 15.0 ml and a mass of 50.5 g. the density is: 3.36 g/ml

To solve this problem the density formula and the procedure that we have to use is:

d = m/v

Where:

  • v= volume
  • d= density
  • m= mass

Information about the problem:

  • v= 15.0 ml
  • m= 50.5 g
  • d = ?

Applying the density formula we get:

d = m/v

d = 50.5 g/15.0 ml

d= 3.36 g/ml

<h3>What is density?</h3>

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

What is volume?

It is the space occupied by a body, it is calculated by multiplying its dimensions, for example: length, height and width.

Learn more about density in: brainly.com/question/1354972

#SPJ4

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You have a grindstone (a disk) that is 95.2 kg, has a 0.399 m radius, and is turning at 93 rpm, and you press a steel axe agains
olya-2409 [2.1K]

Answer:

angular acceleration is -0.2063  rad/s²

Explanation:

Given data

mass m = 95.2 kg

radius r = 0.399 m

turning ω = 93 rpm

radial force N  = 19.6 N

kinetic coefficient of friction  μ = 0.2

to find out

angular acceleration

solution

we know frictional force that is = radial force × kinetic coefficient of friction

frictional force = 19.6 × 0.2

frictional force = 3.92 N

and

we know moment of inertia  that is

γ =  I ×α = frictional force × r

so

γ  = 1/2 mr²α

α  = -2f /mr

α  = -2(3.92) /95.2 (0.399)

α  = - 7.84 / 37.9848 = -0.2063

so angular acceleration is -0.2063  rad/s²

3 0
3 years ago
What physical quantity is a measure of the amount of inertia an object has?
satela [25.4K]
Mass is the physical quantity
3 0
4 years ago
A ball is launched from the ground with a horizontal speed of 30 m/s and a vertical speed of 30 m/s. What will the horizontal sp
gulaghasi [49]

Answer:

C

Explanation:

horizintal speed stays same

only vertical speed changes

so H speed will stay 30 m/s

6 0
3 years ago
Which statement describes an intensive property of matter
Fantom [35]

Answer:

where are the statements so i can see which one is correct

Explanation:

4 0
3 years ago
If a car has a mass of 200 kilograms and produces a force of 500 N, how fast will the car accelerate?
Hitman42 [59]

Answer:

2.5m/s²

Explanation:

Given parameters:

Mass of car  = 200kg

Force on car  = 500N

Unknown:

Acceleration of the car  = ?

Solution:

According to Newton's second law of motion:

      Force  = mass x acceleration

Insert the given parameters and find the acceleration;

         500  = 200 x acceleration

           acceleration = 2.5m/s²

3 0
3 years ago
Read 2 more answers
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