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
kicyunya [14]
3 years ago
5

What is the mass of a bird if it has a potential energy of 147J when flying at a height of 30 m above the ground?

Physics
1 answer:
Artist 52 [7]3 years ago
5 0

Answer:

0.5kg

Explanation:

Given parameters:

Potential energy = 147J

Height  = 30m

Unknown:

Mass of the bird  = ?

Solution:

Potential energy is the energy due to the position of a body. Now, the expression for finding the potential energy is given as;

      P.E  = mgH

m is the mass

g is the acceleration due to gravity = 9.8m/s²

H is the height

      147  = m x 9.8 x 30

         m = 0.5kg

You might be interested in
Please any one have a clue on this one? Really need help on this
lana66690 [7]
Oxygen and Neon have the same number of valence electrons because both the compounds are in the same group and the outer orbital of both the compounds consists of 6 electrons
5 0
3 years ago
Two people travel from Columbus to Cleveland, one by car at an average velocity of 90km/h, and one by plane at an average veloci
Flura [38]

Answer:

Explanation:

Yes , their displacement may be equal .

Suppose the displacement is AB where A is starting point and B is end point .

The car is covering the distance AB by going from A to B on straight line . On the other hand plane goes from A to C , then from C to D and then from D to B . In this way plane reaches B from A on a different path which is longer than path of the car . In the second case also displacement of plane is AB . In the second case distance covered is longer but displacement is same that is AB .

7 0
3 years ago
As sound waves move from air to glass, the wave property of ________ will cause the wave to bend in that direction
Zarrin [17]
<span>The amplitude because that controls the height of the wave. Correct answer: Amplitude.</span>
5 0
4 years ago
An electric model train is accelerated at a rate of 8 m/s^2 by a 12 N force? What is the
jok3333 [9.3K]

Answer:

m = 1.5 kg

Explanation:

Data:

  • Aceleration (a) = 8 m/s²
  • Force (F) = 12 N
  • Mass (m) = ?

Use formula:

  • \boxed{m = \frac{F}{a}}

Replace in the formula:

  • \boxed{m = \frac{12N}{8\frac{m}{s^{2}}}}

Equate the newtons:

  • \boxed{m = \frac{12kg*\frac{m}{s^{2}}}{8\frac{m}{s^{2}}}}

Simplify m/s²:

  • \boxed{m = \frac{12kg}{8}}

It divides:

  • \boxed{m =1.5kg}

What is the mass of the train?

The mass of the train is <u>1.5 kilograms.</u>

4 0
3 years ago
Water changes from a liquid to a gas in the process of evaporation. Please select the best answer from the choices provided T F
const2013 [10]
The correct answer is T.
6 0
4 years ago
Read 2 more answers
Other questions:
  • A blank tells you what the different symbols and lines represent on a map
    8·1 answer
  • During its final days as a red giant, the Sun will reach a peak luminosity of about 3000LSun. Earth will therefore absorb about
    14·1 answer
  • A cake is removed from a 350◦F oven and placed on a cooling rack in a 70◦F room. After 30 minutes the cake is 200◦F. When will i
    11·1 answer
  • A material that lets electricity pass through it is called​
    5·1 answer
  • A ball thrown straight up into the air is found to be moving at 6.79 m/s after falling 1.87 m below its release point. Find the
    14·1 answer
  • Which of the following types of electromagnetic radiation has the most energy?
    12·2 answers
  • Scientists studying an anomalous magnetic field find that it is inducing a circular electric field in a plane perpendicular to t
    5·1 answer
  • Calcula qué tan lejos está Saturno del Sol, sabiendo que la luz solar necesita una hora y veinte segundos para llegar a Saturno.
    9·1 answer
  • Which of the following is the main difference between speed and velosity? A) speed is measured over time B) velocity has both sp
    10·1 answer
  • What is the frequency of a wave that has a period of .25 s
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!