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
Yuliya22 [10]
3 years ago
15

A black widow spider hangs motionless from a web that extends vertically from the ceiling above. If the spider has a mass of 1.2

7 g, what is the tension in the web
Physics
1 answer:
leva [86]3 years ago
8 0

Answer:

Tension = 0.012 N

Explanation:

If the black widow spider is hanging vertically motionless from the ceiling above. Then, the weight of the spider must be balancing the tension in the spider web. Therefore,

Tension = Weight

Tension = mg

where,

m = mass of spider = 1.27 g = 0.00127 kg

g = acceleration due to gravity = 9.8 m/s²

Therefore,

Tension = (0.00127 kg)(9.8 m/s²)

<u>Tension = 0.012 N</u>

You might be interested in
Hlo <br><br> what is a force........??
Paha777 [63]

Explanation:

In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.

Formula

Newton's Second Law

F = m * a

F = force

m = mass of an object

a = acceleration

5 0
3 years ago
Bằng lý luận và thực tiễn, anh (chị) hãy làm sáng tỏ nhận định: “Tâm lý người là sản phẩm của hoạt động và giao tiếp”, từ đó rút
Ronch [10]

the awnser is yes because when I did this assignment I got an A

3 0
2 years ago
BRAINLIEST!!!!!
Serggg [28]

Answer:

A., an action which causes movement and an opposite reaction

Explanation:

I don't really know how to explain it, but this helped hopefully! :) Have a bless day

5 0
3 years ago
A boat race runs along a triangular course marked by buoys A, B, and C. The race starts with the boats headed west for 3700 mete
ale4655 [162]

Answer:

The  last two bearings are

49.50° and 104.02°

Explanation:

Applying the Law of cosine (refer to the figure attached):

we have

x² = y² + z² - 2yz × cosX

here,

x, y and z represents the lengths of sides opposite to the angels X,Y and Z.

Thus we have,

cos X=\frac{x^2-y^2-z^2}{-2yz}

or

cos X=\frac{y^2 + z^2-x^2}{2yz}

substituting the values in the equation we get,

cos X=\frac{2900^2 + 3700^2-1700^2}{2\times 2900\times 3700}

or

cos X=0.8951

or

X = 26.47°

similarly,

cos Y=\frac{1700^2 + 3700^2-2900^2}{2\times 1700\times 3700}

or

cos Y=0.649

or

Y = 49.50°

Consequently, the angel Z = 180° - 49.50 - 26.47 = 104.02°

The bearing of 2 last legs of race are angels Y and Z.

7 0
3 years ago
What is the difference between an open and closed circuit?
exis [7]
A closed circle means the number is included and an open circle means its not.
7 0
3 years ago
Other questions:
  • Bjorn is holding a tennis ball outside a second floor window (3.5 meters from the ground) and billie jean is holding one outside
    15·1 answer
  • 9) At a construction site, a small crane is raising two boxes of nails on a plank to the roof. One box has already been opened a
    12·2 answers
  • you cover 10 meters in a time of 1 second .Is your speed the same if you cover 20 meters in 2 seconds?
    10·1 answer
  • An airplane flies 33 m/s due east while experiencing a tailwind
    13·1 answer
  • describe at least 2 reasons (pieces of evidence) for why we know that the continents were once joined together and have since dr
    6·2 answers
  • How long dose long term alcohol abuse affect the liver?
    14·2 answers
  • Variable.
    9·1 answer
  • Everything is made up of blank and all matter is made of blank. There are three basic parts of atom: protons,neutrons, and blank
    8·1 answer
  • Write some harms of friction.
    9·2 answers
  • She left the cubes in the water for three hours which of the following describes a heat flow that took place during those three
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!