answer.
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
devlian [24]
1 year ago
8

Any person who opens the door he applies​

Physics
1 answer:
miskamm [114]1 year ago
5 0

Answer:

any person who opens the door he applies pulling force

You might be interested in
A farsighted girl has a near point at 2.0 m but has forgotten her glasses at home. The girl borrows eyeglasses that have a power
lisov135 [29]

Find the pictures in the attachment

6 0
1 year ago
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
nataly862011 [7]

Answer:

The major ethical issues in leading examination are: an) Informed assent, b) Beneficence-Do not hurt c) Respect for obscurity and secrecy d) Respect for security.

Explanation:

The major ethical issues in leading examination are: an) Informed assent, b) Beneficence-Do not hurt c) Respect for obscurity and secrecy d) Respect for security.

There are a few reasons why it is essential to stick to ethical norms in research. To start with, standards advance the points of exploration, for example, information, truth, and shirking of blunder. For instance, preclusions against creating, adulterating, or distorting research information advance reality and limit mistake.

6 0
1 year ago
Magnetic fields within a sunspot can be as strong as 0.4T. (By comparison, the earth's magnetic field is about 1/10,000 as stron
WARRIOR [948]

Answer:

The speed of ejection is 2.06\times 10^{4}\ m/s

Solution:

As per the question:

Magnetic field density, B = 0.4 T

Density of the material in the sunspot, \rho = 3\times 10^{4}\ kg/m^{3}

Now,

To calculate the speed of ejection of the material, v:

The magnetic field energy density is given by:

U_{B} = \frac{B^{2}}{2\mu_{o}}

This energy density equals the kinetic energy supplied by the field.

Thus

KE = U_{B}

\frac{1}{2}mv^{2} = \frac{B^{2}}{2\mu_{o}}

where

m = mass of the sunspot in 1\ m^{3} = 3\times 10^{- 4}\ kg/m^{3}

v = \frac{B}{\sqrt{\mu_{o}m}}

v = \frac{0.4}{\sqrt{4\pi \times 10^{- 7}\times 3\times 10^{- 4}}} = 2.06\times 10^{4}\ m/s

3 0
1 year ago
Mrs. Brown's class is studying magnets and electricity. At the end of the unit Claire states that magnets and electricity are bo
Gwar [14]

Answer:

Magnets can create electricity and electricity can create a magnetic force.

Both electric charges and magnets do not have to touch an object in order to exert a force on it.

Electromagnets use electricity to create a magnetic force.

Explanation:

7 0
1 year ago
Read 2 more answers
If a metal wire is 4m long and a force of 5000n causes it to stretch by 1mm, what is the strain?
barxatty [35]

Answer:

2.5\cdot 10^{-4}

Explanation:

The strain is defined as the ratio of change of dimension of an object under a force:

S=\frac{\Delta L}{L_0}

where

\Delta L is the change in length of the object

L_0 is the original length of the object

In this problem, we have L_0 = 4 m and \Delta L=1 mm=0.001 m, therefore the strain is

S=\frac{\Delta L}{L_0}=\frac{0.001 m}{4 m}=2.5\cdot 10^{-4}


5 0
2 years ago
Other questions:
  • Marcia ran at a speed of 3.50 meters per second. How fast was she running in kilometers per hour?
    13·1 answer
  • if a volcano spews a 500-kg rock vertically upward a distance of 500m. what was its velocity when it left the volcano? if the vo
    9·1 answer
  • Explain how scientists know that elephants and hyraxes are related. Be sure to include anatomical similarities as well as fossil
    7·2 answers
  • A 25.0-kg child plays on a swing having support ropes that are 2.20 m long. Her brother pulls her back until the ropes are 42.0°
    5·1 answer
  • What is the Physics Primer?
    15·2 answers
  • A teacher performing demonstration finds that a piece of cork displaces 23.5 ml of water. The piece of cork has a mass 5.7 g. Wh
    10·1 answer
  • In an experiment to illustrate the propagation of sound through fluids, identical sound sources emitting at 440 Hz are used to p
    13·1 answer
  • A wire loop is suspended from a string that is attached to point P in the drawing. When released, the loop swings downward, from
    11·1 answer
  • Calculate the percent error of the distance to the moon.
    13·1 answer
  • A bicyclist is riding at a tangential speed of 13.2 m/s around a circular track. The magnitude of the centripetal force is 377 N
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!