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
Natasha_Volkova [10]
3 years ago
5

A plane that is 2000m in the air of the potential energy of the plane is 86000 J what is the mass of the plane

Physics
1 answer:
sveticcg [70]3 years ago
6 0

Hi there!

Recall the equation for gravitational potential energy:
GPE = U = mgh

m = mass (kg)
g = acceleration due to gravity (9.8 m/s²)

h = height (m)

We are given the GPE, so we can solve for mass:
86000 = m * 2000 * 9.8

Solve for m:
m = \frac{86000}{2000(9.8)} = \boxed{4.39 kg}

You might be interested in
A 59 kg physics student is riding her 220 kg Harley at 12 m/s when she has a head-on collision with a 2.1 kg pigeon flying the o
IgorLugansk [536]

Answer:

Explanation:

Using conservation of momentum

m_1=59+220=279kg

m_2=2.1kg

U_1=12m/s

U_2=-44m/s

m_1U_1+m_2U_2=(m_1+m_2)V\\\\\frac{278\times 12-2.1\times 44}{279+2.1}=V\\\\V=11.58m/s

6 0
3 years ago
A car passes point “A” and then 120 meters later. It’s velocity was measured 21 m/s. If it’s acceleration was constant at 0.853
Norma-Jean [14]

Recall that

{v_f}^2-{v_i}^2=2a\Delta x

where v_i and v_f are the initial and final velocities, respecitvely; a is the acceleration; and \Delta x is the change in position.

So we have

\left(21\dfrac{\rm m}{\rm s}\right)^2-{v_i}^2=2\left(0.853\dfrac{\rm m}{\mathrm s^2}\right)(120\,\mathrm m)

\implies v_i\approx\boxed{15.4\dfrac{\rm m}{\rm s}}

(Normally, this equation has two solutions, but we omit the negative one because the car is moving in one direction.)

7 0
3 years ago
A car travels 2155.0m in 195.9s. What is the car's average speed?
inna [77]

Average speed of the car is 11 m/s

Explanation:

  • Speed is calculated by the rate of change of displacement.
  • It is given by the formula, Speed = Distance/Time
  • Here, distance = 2155 m and time = 195.9 s

Speed of the car = 2155/195.9 = 11 m/s

3 0
4 years ago
Which statement best describes metallic bonding
horrorfan [7]

Answer:

It's a type of chemical bonding that rises from the electrostatic attractive force between conduction electrons and positively charged metal bars. It can also be described as the sharing of free electrons among a structure of positively charged ions

4 0
3 years ago
Which chemical reaction absorbs energy?
andre [41]
Photosynthesis. Photosynthesis is the process the plant uses to absorbs light to make food
8 0
3 years ago
Read 2 more answers
Other questions:
  • In the stream, water waves bunched up as the water flowed by. As we
    10·1 answer
  • Which of the following is an illuminated object? a lightbulb a fire the Sun the Moon
    10·2 answers
  • The first outside orbit of Earth planet is <br>a Jupiter <br>b Mars <br>c Saturn <br>d uranus​
    14·2 answers
  • Help plsss i need #1
    14·1 answer
  • The height of a student is 150cm. What is his height in metres???! Plz ans with solution
    5·2 answers
  • What is the name of the compound br8P4
    14·1 answer
  • Gus likes to create pictures or clusters to show the information he has learned. What kind of learner is Gus likely to be?
    9·2 answers
  • A box of unknown weight is 1 m away from the fulcrum. To balance the sides, a student applies a force of 4 N at a distance of 3
    6·1 answer
  • A current carrying wire of length 50cm is positioned perpendicular to a uniform magnetic field
    5·1 answer
  • #1 explain why there is no such thing as a quick and easy way to lose weight.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!