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
VashaNatasha [74]
3 years ago
10

One of the largest planes ever to fly, and the largest to fly frequently, is the Ukrainian-built Antonov An-124 Ruslan. The grav

itational potential energy associated with the plane at an altitude of 1450 m is 3,360,000,000 J. What is the airplane's mass?​
Physics
1 answer:
Lerok [7]3 years ago
4 0

Answer:

m = 236212 [kg]

Explanation:

The potential energy can be determined by means of the product of mass by gravity by height. In this way, we have the following equation.

P=m*g*h\\

where:

P = potential energy = 3360000000 [J]

m = mass [kg]

g = gravity acceleration = 9.81 [m/s²]

h = elevation = 1450 [m]

Now, we can clear the mass from the equation above:

3360000000=m*9.81*1450\\m = 236212 [kg]

You might be interested in
What is an ellipse?
Rom4ik [11]

Answer:

i think it's C thx correct me if wrong

6 0
3 years ago
Consider the following situations: i. A ball moving at speed v is brought to rest ii. The same ball starts at rest and is projec
tatyana61 [14]

Answer:

c. Case iii

Explanation:

the ball will experience the largest change in case iii

3 0
3 years ago
State four law of photoelectric effect​
Bogdan [553]

Answer:

LAW 1 :  For a given metal and frequency, the number of photoelectrons emitted is directly proportional to the intensity of the incident radiation.  

---------------------------------------------

LAW 2: For a given metal, there exists a certain frequency below which the photoelectric emission does not take place. This frequency is called threshold frequency.

-----------------------------------------------

LAW 3: For a frequency greater than the threshold frequency, the kinetic energy of photoelectrons is dependent upon frequency or wavelength but not on the intensity of light.

-----------------------------------------------

LAW 4: Photoelectric emission is an instantaneous process. The time lag between incidence of radiations and emission of electron is 10^-9 seconds.

Explanation:

7 0
2 years ago
Read 2 more answers
For lunch you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.300 kg of Italia
Oliga [24]

Answer with Explanation:

We are given that

m_1=0.3 kg

m_2=0.4 kg

Spring constant,k=200 N/m

h=0.250 m

a.Speed of ham before collision

u=\sqrt{2gh}=\sqrt{2\times 9.8\times 0.25}=2.2m/s

Collision is inelastic

According to law of conservation of momentum

m_1u_1=(m_1+m_2)v

0.3\times 2.2=(0.3+0.4)v

v=\frac{0.3\times 2.2}{0.7}=0.94 m/s

Kinetic energy of masses=Spring potential energy at maximum distance

\frac{1}{2}(m_1+m_2)v^2=\frac{1}{2}kA^2

A^2=\frac{(m_1+m_2)v^2}{k}

A=\sqrt{\frac{(m_1+m_2)v^2}{k}}

Substitute the values

A=\sqrt{\frac{(0.3+0.4)\times (0.94)^2}{200}}=0.056 m=0.056\times 100=5.6 cm

1 m=100 cm

b.Time period,T=2\pi\sqrt{\frac{(m_1+m_2)}{k}}

T=2\pi\sqrt{\frac{(0.3+0.4)}{200}}=0.37 s

7 0
3 years ago
Why is photosynthesis essential for plant homeostasis?
aalyn [17]
It should be answer choice b
6 0
3 years ago
Read 2 more answers
Other questions:
  • When using the scientist method, which step comes last?
    12·1 answer
  • A refrigerator _ objects placed inside it.
    9·2 answers
  • Experimental Inquiry: What factors influence the loss of nutrients from a forest ecosystem?
    5·1 answer
  • A simple pendulum consists of a point mass, m, attached to the end of a massless string of length L. It is pulled out of its str
    11·1 answer
  • Two small insulating spheres with radius 3.50×10^−2m are separated by a large center-to-center distance of
    7·1 answer
  • Two blocks, 1 and 2, are connected by a rope R1 of negligible mass. A second rope R2, also of negligible mass, is tied to block
    10·1 answer
  • What does Newton's 2nd Law explain?
    11·1 answer
  • One side of a seesaw carries a 21kg mass four meters from the fulcrum and a 25.5kg mass two meters from the fulcrum. To balance
    14·1 answer
  • A 0.5 kg object, initially at rest, is pulled to the right along a frictionless horizontal surface by a constant horizontal forc
    13·1 answer
  • Three energy changes that result in movements accuring in your body as sit down reading book?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!