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
Drupady [299]
3 years ago
9

The push switch is closed and the door unlocks. Explain in detail how this happens.

Physics
1 answer:
Amiraneli [1.4K]3 years ago
5 0

Answer:

The push switch is closed and the door unlocks. ... The switch completes the circuit and a current flows through the coil. The coil becomes an electromagnet and its iron core becomes magnetised. The iron bolt is attracted to the electromagnet.

Explanation:

Please Mark me brainliest

You might be interested in
A cylinder contains a mixture of helium and argon gas in equilibrium at 160°C.
Artist 52 [7]

Answer:

a. E=8.97*10^{-21} J

b. v-He2 = 1.161 km/s

v-Ar2 = 369.74 m/s

Explanation:

(a) The average kinetic energy is given by

E_k=\frac{1}{2}k_BT

where KB is the Boltzman's constant and T is the temperature. For each molecule we have:

E_k=\frac{3}{2}(1.38066*10^{-23}\frac{J}{K})(433.15K)=8.97*10^{-21}J

is the same for both type of molecules because is independent of the mass

(b)

v_{rms}=\sqrt{\frac{3RT}{M}}

where R is the constant of ideal gases, and M is the mass of the molecule. BY replacing for each type of molecule we obtain:

v_{rms-He_{2}}=\sqrt{\frac{3(8.311434Jmol^{-1}K^{-1})(433.15K)}{0.008kg\ mol^{-1}}}=1161.9\frac{m}{s}\\\\v_{rms-Ar_{2}}=\sqrt{\frac{3(8.311434Jmol^{-1}K^{-1})(433.15K)}{0.079kg\ mol^{-1}}}=369.74\frac{m}{s}

v-He2 = 1.161 km/s

v-Ar2 = 369.74 m/s

hope this helps!!

8 0
3 years ago
a cylindrical jar is 10cm long and has a cross sectional area of 36cm. if it is completely filled with a fluid of relative densi
ki77a [65]

Answer:

The mass of the fluid is 72 g.

Explanation:

The following data were obtained from the question:

Height (h) = 10 cm

Area of cross section (A) = 36cm²

Relative density = 0.2

Mass =..?

Next, we shall determine the volume of the cylinder. This can be achieved by doing the following:

Volume = Area x Height

Volume = 36 x 10

Volume = 360 cm³

Next, we shall determine the density of the liquid.

This can be obtained as follow:

Relative density = density of substance/density of water.

Relative density = 0.2

Density of water = 1 g/cm³

Density of fluid =...?

Relative density = density of substance/density of water.

0.2 = density of fluid / 1 g/cm³

Cross multiply

Density of fluid = 0.2 x 1 g/cm³

Density of fluid = 0.2 g/cm³

Finally, we shall determine the mass of fluid as follow:

Volume = 360 cm³

Density of fluid = 0.2 g/cm³

Mass of fluid =...?

Density = mass /volume.

0.2 g/cm³ = mass of fluid /360 cm³

Cross multiply

Mass of fluid = 0.2 g/cm³ x 360 cm³

Mass of fluid = 72 g

Therefore, the mass of the fluid in the jar is 72 g.

6 0
3 years ago
the gas in a cylinder has a volume of 4 liters at a pressure of 123 kPa. the pressure of the gas is increased to 204 kpa. assumi
Marat540 [252]
According to boyle's law, pressure is inversely proportional to volume. Therefore (PV) initial = (PV) final. 123x4 = 204xV. V=123x4/204 = 2.41L.
7 0
3 years ago
Are anxiety disorder curable
Anvisha [2.4K]

Anxiety Disorder is treatable, not curable.

7 0
3 years ago
Resolve the vector shown below into its components.
yan [13]

Answer:

D. s=3x+4y

Explanation:

The line is at the 3rd column in the 4th row.

7 0
2 years ago
Other questions:
  • According to a rule-of-thumb. every five seconds between a lightning flash and the following thunder gives the distance to the f
    10·1 answer
  • Arrange the layers from youngest to oldest
    7·1 answer
  • For a human zygote to become an embryo it must undergo
    15·1 answer
  • In any ecosystem, the size of a population
    8·2 answers
  • If you know the distance an object has traveled in a certain amount of time you can determine
    12·2 answers
  • What does the pressure exerted by a gas depend on
    12·1 answer
  • A technician wraps wire around a tube of length 33 cm having a diameter of 8.1 cm. When the windings are evenly spread over the
    11·1 answer
  • what magnetic field is needed to exert a force of 0.4N on a 0.1m long conductor if it carries a current of 2A perpendicular to t
    5·1 answer
  • 2. How do the phytochemicals present in various foods help us?<br>​
    8·1 answer
  • Select the correct answer.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!