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
tatyana61 [14]
3 years ago
12

An aerobatic airplane pilot experiences weightlessness as she passes over the top of a loop-the-loop maneuver. The acceleration

of gravity is 9.8 m/s 2 . If her speed is 450 m/s at this time, find the radius of the loop. Answer in units of km
Physics
1 answer:
Debora [2.8K]3 years ago
3 0

Answer:

The radius of the loop is  20.66 km

Explanation:

let the radius of the loop be r

mass of airplane is m

At the top, the pilot experiences two radial forces, which are

1) Gravitational force is  mg

2) Centrifugal forces mv²/r out of the center

When the pilot experiences no weight,

then, mg = mv²/r

r = v² / g

 = 450² / 9.8

 = 20.66 x 10³3

 = 20.66 km

You might be interested in
The distance of Saturn from the sun is:<br><br> &lt; 1 A.U.<br> &gt; 1 A.U.<br> = 1 A.U.
sertanlavr [38]

Answer:

1 astronomical unit is the average distance from the Earth to the Sun; approximately 150 million km. At its closest point, Saturn is 9 AU, and then at its most distant point, it's 10.1 AU. Saturn's average distance from the Sun is 9.6 AU. We have written many articles about Saturn for Universe Today.

Explanation:

6 0
3 years ago
Read 2 more answers
Please answer the question
AfilCa [17]
The answer is Cㅤㅤㅤㅤㅤ
4 0
3 years ago
While studying bacterial cells, scientists measure the lengths of the cells in one colony. The chart shows their data. The scien
jok3333 [9.3K]

Answer:

Following are the solution to the given question:

Explanation:

Its best approach to this measurement ought to be to indicate that there was a mistake throughout the calculation, as well as the gathering of further details while researching cells for bacteria, directly measuring the cell length of a colony. This chart illustrates its data, which scientists have observed that there's still a measurement.

5 0
2 years ago
What is the source of all electromagnetic waves?
kherson [118]

Answer:

Accelerating charges.

Explanation:

Electromagnetic waves are waves produced by the vibration of both electrical and magnetic fields.

This interaction produces an energy source that does not require any medium to propagate.

To produce electromagnetic waves, electric and magnetic fields must be vibrating.

An electric charge produced when vibrating under voltage will produce electromagnetic waves. This is the same for all sources of these waves.

The sun produces electromagnetic waves. A lot of human activities also does this.

6 0
3 years ago
How does uncertainty relate to measurements and calculations made during an investigation?
Rom4ik [11]

there here is your answer to your question

Uncertainty in measurements and calculations means difference between actual and measured data. We can say that all measurements have some degree of uncertainty. ... Systematic error (because of error in measuring instrument) 2. Random error (human errors such as- delay in starting, delay in stopping).

3 0
2 years ago
Other questions:
  • Two charges are located in the x–y plane. If q1 = -2.90 nC and is located at x = 0.00 m, y = 0.840 m and the second charge has m
    9·1 answer
  • Help<br> How much current will flow when a 120 V power supply is connected to a 30<br> resistor ?
    10·1 answer
  • Two Forces Of Magnitude 20N Each Are Acting At 30 And 60 degree with xAxis the Y Component Of The Resultant Force Is
    15·1 answer
  • __________ receptors detect presence of acids in substances, whereas __________ receptors detect sodium in substances. A. Sour .
    11·2 answers
  • A vertical solid steel post of diameter d = 26cmand length L = 2.40m is required to support a load of mass m = 7800kg . You can
    8·1 answer
  • Michael has a substance that he puts in Container 1. The substance has a volume of 5 cubic meters. He then puts the substance in
    13·1 answer
  • In a free body diagram the weight is
    15·1 answer
  • A boy travels 12km east wards to a point B and then 5km southwards to another point C. Calculate the difference between the magn
    8·1 answer
  • A basketball referee tosses the ball straight up for the starting tip-off. At what velocity must a basketball player leave the g
    8·1 answer
  • Find the equilibrant of two 10.0-N forces acting upon a body when the angle between the forces is 90° Solve graphically using a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!