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
Leno4ka [110]
3 years ago
12

Which describes one event that causes an eclipse?

Physics
1 answer:
Burka [1]3 years ago
3 0

Answer:

Earths shadow covering the moon would create a lunar eclipse.

Explanation:

because i just know

You might be interested in
How is 0.00069 written in scienitfic notation?
victus00 [196]
You need to move the decimal point between the six and nine. 6.9 X 10^-4
8 0
3 years ago
Please Help! 30 points! ASAP PLZ :)
Savatey [412]
The best logical answer is A
5 0
3 years ago
Read 2 more answers
An experimenter adds 970 J of heat to 1.75 mol of an ideal gas to heat it from 10.0∘C to 25.0∘C at constant pressure. The gas do
ipn [44]

Answer:

(a) ΔU=747J

(b) γ=1.3

Explanation:

For (a) change in internal energy

According to first law of thermodynamics the change in internal energy is given as

ΔU=Q-W

Substitute the given values

ΔU=970J-223J

ΔU=747J

For(b) γ for the gas.

We can calculate γ by ratio of heat capacities of the gas

γ=Cp/Cv

Where Cp is the molar heat capacity at constant pressure

Cv is the molar heat capacity at constant volume

To calculate γ we first need to find Cp and Cv

So

For Cp

As we know

Q=nCpΔT

Cp=(Q/nΔT)

C_{p}=\frac{970J}{1.75mol*(25^{o}C-10^{o}C )}\\C_{p}=37J/mol.K

From relation of Cv and Cp we know that

Cp=Cv+R

Where R is gas constant equals to 8.314J/mol.K

So

C_{v}=C_{p}-R\\C_{v}=37-8.314\\C_{v}=28.687J/mol.K\\

So

γ=Cp/Cv

γ=[(37J/mol.K) / (28.687J/mol.K)]

γ=1.3

4 0
3 years ago
Pls pls help me out AHH, what is not true about MEIOSIS?
agasfer [191]

Answer:

B.

Explanation:

This is not true as the number of chromosomes in the daughter cells are half the number in the parent's cells

4 0
3 years ago
The speed of a sound wave traveling through air is 400 meters per second. The wavelength of the wave is 25 meters What is the
sweet [91]

Answer:

16Hz

Explanation:

Given parameters:

Speed of sound  = 400m/s

Wavelength  = 25m

Unknown:

Frequency of the wave  = ?

Solution:

To solve this problem;

      V  = F ∧  

V is the velocity

F is the frequency

∧ is the wavelength

      400  = F x 25

        F  = 16Hz

7 0
3 years ago
Read 2 more answers
Other questions:
  • A closed loop conductor that forms a circle with a radius of is located in a uniform but changing magnetic field. If the maximum
    6·1 answer
  • A 65-cm segment of conducting wire carries a current of 0.35 A. The wire is placed in a uniform magnetic field that has a magnit
    13·2 answers
  • If the speed of light in a sphere is 2 × 108 m/s, its index of refraction is
    11·1 answer
  • The nonmetals include which of the following groups? Use the periodic table to answer the question. Check all that apply. haloge
    8·1 answer
  • Aleksei’s family purchased a new water heater that is a heat pump. After installation, Aleksei noticed that the room containing
    10·2 answers
  • Which sequence shows all the colors of visible light arranged from shortest to longest wavelength?
    5·2 answers
  • If the x-component of velocity is 27m/s and the y-component of velocity is -23 m/s, what is the resultant vector?
    6·1 answer
  • A metal ring 5.00 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpend
    7·1 answer
  • An astronaut weighing 190 lbs on Earth is on a mission to the Moon and Mars.
    9·1 answer
  • A fighter plane is descending at 30 m/s. The pilot ejects, and the ejector seat accelerates him upwards at 120 m/s2 for 2 second
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!