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
Vsevolod [243]
3 years ago
15

A hole is drilled in a metal plate. When the metal is raised to a higher temperature, what happens to the diameter of the hole?

Physics
1 answer:
zysi [14]3 years ago
4 0

Answer:

The diameter of the hole increases

Explanation:

Metals expand and contract with temperature. Whenever metal is heated, it usually expands in relation to its thermal expansivity. This expansion leads to a slight increase in surface area.

Once the surface area of the metal changes, this means that the dimensions of the whole metal surface changed. As a result, the diameter of the hole drilled in the metal plate will change also. In our case, the diameter of the hole will increase.

You might be interested in
1)<br> How much time does it take to lift a box using 18.0 J of work and 20.89 Watt of power?
oee [108]

Answer:.

Explanation:

Z

7 0
2 years ago
The waves shown below represent sound waves. Which of the waves would have the highest-pitched sound?
Ostrovityanka [42]
Humans hear frequencies from 20 Hz<span> (low) up to </span>20,000 Hz (high)

8 0
2 years ago
F = 50 N<br> m = 72 kg<br> m/s2
lyudmila [28]

Answer:

Explanation:

F=ma

a=F/m

a=50/72=

a=0.694

3 0
2 years ago
A girl stands on the edge of a merry-go-round of radius 1.71 m. If the merry go round uniformly accerlerates from rest to 20 rpm
Mashutka [201]

Answer:

a = 0.53 m/s^2

Explanation:

initially the merry go round is at rest

after 6.73 s the merry go round will accelerates to 20 rpm

so final angular speed is given as

\omega = 2\pi f

\omega = 2\pi ( \frac{20}{60})

\omega = 2.10 rad/s

so final tangential speed is given as

v = r\omega

v = 1.71 (2.10) = 3.58 m/s

now average acceleration of the girl is given as

a = \frac{v_f - v_i}{\Delta t}

a = \frac{3.58 - 0}{6.73}

a = 0.53 m/s^2

8 0
3 years ago
72.0-kg person pushes on a small doorknob with a force of 5.00 N perpendicular to the surface of the door. The doorknob is locat
expeople1 [14]

Answer:I=2 kg-m^2

Explanation:

Given

mass m=72 kg

Force F=5 N

door knob is located at a distance of r=0.8 m from axis

Angular acceleration of door \alpha =2 rad/s^2

Torque T=I\alpha =F\times r

where I=moment of inertia

5\times 0.8=I\times 2

I=2 kg-m^2

4 0
3 years ago
Other questions:
  • The picture below shows an asteroid and a comet.
    9·1 answer
  • What physical processes helped to form the caribbean and still poses a threat today?
    8·1 answer
  • a 2.964 kilogram truck strikes a fence at 7.00 meters/second and comes to a stop in 1.9 seconds. what was the average force acti
    12·1 answer
  • Which of the following is true of the structures labeled A in the cell membrane?
    9·2 answers
  • A constant force of 4.5N acts on a 7.2 kg object for 10 s what is the change in the object velocity
    5·1 answer
  • ¿Qué diferencia una magnitud fundamental de una derivada?
    5·2 answers
  • 1. (3 points) Convert the given distances to kilometers using the
    13·1 answer
  • The ancient Egyptians build their pyramids using a ramp to move the heavy blocks up. The length of the ramp was 25m and the heig
    10·1 answer
  • To cut down on injuries, a highway guardrail is designed to be moved a maximum of 0.05 meters when struck by a car. What is the
    12·1 answer
  • What did johannes kepler contribute to the study of planets? he formulated the universal law of gravitation. he identified the f
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!