1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anon25 [30]
3 years ago
15

A metal cylinder measures 3.0 cm in diameter, is 12.0 cm high, and has a mass of 750 g. The cylinder hangs from a string attache

d to a scale that measures weight in Newtons (N). The cylinder is lowered into a cylindrical beaker of water until it is submerged completely. The diameter of the beaker is 10.0 cm. (a) By how much does the height of the water in the beaker rise when the cylinder is submerged? (b) What weight does the scale read after the cylinder is submerged?
Physics
1 answer:
kvasek [131]3 years ago
3 0

Answer with Explanation:

We are given that

Diameter of cylinder,d_1=3 cm

Radius,r_1=\frac{d_1}{2}=\frac{3}{2}=1.5cm=1.5\times 10^{-2} m

1m=100 cm

Height,h=12 cm=\frac{12}{100}=0.12 m

Mass,m=750 g=\frac{750}{1000}=0.75kg

1kg=1000 g

Diameter of beaker,d_2=10 cm

Radius of beaker,r_2=\frac{d_2}{2}=\frac{10}{2}=5cm

A.\pi r^2_2h_2=\pi r^2_1 h_1

h_2=\frac{r^2_1}{r^2_2}h

h_2=\frac{(1.5)^2}{(5)^2}\times 12=1.08 cm

Hence, the height of the water in the beaker rises when the cylinder is submerged=1.08 cm

B.Weight read on the scale after the cylinder is submerged

w=mg-\rho A_1h_1g

Where g=9.8 m/s^2

A_1=\pi r^2_1

Density of water=\rho=1000kg/m^3

w=0.75\times 9.8-1000\times \pi(1.5\times 10^{-2})^2\times 0.12\times 9.8

w=6.52 N

You might be interested in
Imagine that while you and a passenger are in a deep-diving submersible in the North Pacific near Alaska’s Aleutian Islands, you
mamaluj [8]

Answer:

I would say its a deep ocean trench

Explanation:

This is because deep ocean trenches are found at the deepest part of the ocean and also at Pacific ocean margins or Rim where subduction usually occurs and Aleutian islands are part of the Pacific Rim

6 0
3 years ago
When is the pressure of the man on the ground more – lying position or standing
Wittaler [7]

Hi,

<u>The man on the ground in standing position has more pressure</u>. This is because when he stands, only his legs are in contact with the ground. While lying, his body is more in contact with the ground, therefore, he exerts less pressure.

To the point, a man standing position on the ground had more pressure.

More is the area of contact, less is the pressure efforted.

Thank you...

7 0
2 years ago
What is the mass of a bird if it has a potential energy of 147J when flying at a height of 30 m above the ground?
Artist 52 [7]

Answer:

0.5kg

Explanation:

Given parameters:

Potential energy = 147J

Height  = 30m

Unknown:

Mass of the bird  = ?

Solution:

Potential energy is the energy due to the position of a body. Now, the expression for finding the potential energy is given as;

      P.E  = mgH

m is the mass

g is the acceleration due to gravity = 9.8m/s²

H is the height

      147  = m x 9.8 x 30

         m = 0.5kg

5 0
3 years ago
How long does it take light to travel from jupiter to earth?.
valentina_108 [34]
The answer is : 35 to 52 minutes.
Hope this helps!
Please give Brainliest!
7 0
2 years ago
You need to build a prototype with machined parts that withstand a saline corrosive environment and temperatures above 200 degre
kondor19780726 [428]

Answer:

Stainless steel

Explanation:

I will try to order the solutions from the least correct to the most correct.

Since a temperature greater than 200 ° F is required, that is to say approximately 93 ° c, <em>Polycaprolactone</em> is the least indicated. Its melting point is approximately 60 ° C, so it would not serve the required application.

On the other hand we have<em> Untreated aluminum</em>, which although it has a melting point higher than the required one, without a zinc and magnesium treatment it will easily oxidize in a salty environment, so it cannot be used in this choice either.

We have to compare the two steels.

The<em> Mild Steel </em>has a better corrosion resistance than the previous ones, but in a long-term cycle it will end up full of corrosion and therefore its properties will be highly affected.

Finally, we have <em>stainless steel</em>, which, as the name implies, contains in some of its variations chromium, zinc or magnesium in its alloys, which makes it highly resistant to corrosion.

In addition its melting point is above 1500 ° c.

The best choice is stainless steel.

5 0
3 years ago
Other questions:
  • Two long, parallel wires separated by 5.0 mm each carry a current of 60 A. These two currents are oppositely directed. What is t
    14·2 answers
  • Which two elements have similar characteristics?
    15·2 answers
  • An elevator weighing 2.00 x 10 5 N is supported by a steel cable. What is the tension in the cable when the elevator is accelera
    11·1 answer
  • The heart rate that indicates your fitness level is the
    6·1 answer
  • Which of these objects could be falling with constant acceleration?
    7·1 answer
  • A scientist who conducted an experiment obtained an unexpected result. What will she most likely do with the unexpected result?
    15·1 answer
  • Does anyone know the answers to these ?
    7·2 answers
  • Which of the following quantities are unknown? initial separation of the particles final separation of the particles initial spe
    15·1 answer
  • An object of mass m is oscillating back and forth in simple harmonic motion. The maximum origin, x = 0, and moving in the x dire
    12·1 answer
  • State that there are positive and negative charges.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!