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
Brums [2.3K]
2 years ago
9

A 0.10 g honeybee acquires a charge of +23 pC while flying.

Physics
1 answer:
kari74 [83]2 years ago
3 0

Answer:

a) \frac{F}{w} =2.347\times 10^{-6}\ N

b) E=4.2609\times 10^7\ N.C^{-1} parallel to the earth surface.

  • In this case according to the Fleming's left hand rule the direction of movement of bee must be in a direction parallel to the earth surface and perpendicular to the electric field at the same time.

Explanation:

Given:

mass of the bee, m=10^{-4}\ kg

charge acquired by the bee, q_2=23\times 10^{-12}\ C

a.

Electrical field near the earth surface, E=100\ N.C^{-1}

Now the electric force on the bee:

we know:

F=\frac{1}{4\pi.\epsilon_0} \times \frac{q_1.q_2}{r^2}

F=E.q_2

F=100\times 23\times 10^{-12}

F=23\times 10^{-10}\ N

The weight of the bee:

w=m.g

w=10^{-4}\times 9.8

w=9.8\times10^{-4}\ N

Therefore the ratio :

\frac{F}{w} =\frac{23\times 10^{-10}}{9.8\times10^{-4}}

\frac{F}{w} =2.347\times 10^{-6}\ N

b.

The condition for the bee to hang is its weight must get balanced by the electric force acing equally in the opposite direction.

So,

F=9.8\times10^{-4}\ N

E.q_2=9.8\times10^{-4}\ N

E\times 23\times 10^{-12}=9.8\times10^{-4}\ N

E=4.2609\times 10^7\ N.C^{-1} parallel to the earth surface.

  • In this case according to the Fleming's left hand rule the direction of movement of bee must be in a direction parallel to the earth surface and perpendicular to the electric field at the same time.
You might be interested in
How could I tell if an egg is hard boiled or raw explain using Newton's law of motion
Thepotemich [5.8K]

Answer:

Explanation:

Newton's 2 nd law of motion tells that when equal torque is applied on object having higher moment of inertia , it will rotate slower .

Moment of inertia of boiled egg is higher because the whole egg rotates as s solid unit . Hence it will rotate slower or it rolls slower on an inclined surface .

In this way by applying Newton's law , we can identify raw or boiled egg .

6 0
3 years ago
A substance has life of 40 years. In how many years will the substance disintegrate to 1/8 of its initial size
tia_tia [17]

Answer:

5 years

Explanation:

\frac{1}{8}(40)\\\\= 5

8 0
1 year ago
What is the mach to term of kinetic energy
lord [1]
Kinetic energy means fast move movement
5 0
3 years ago
The revolving nosepiece of a compound microscope is used to: a. move the condenser up or down b. change the objective lens c. ad
Jlenok [28]

Answer:

Option B: change the objective lens

Explanation:

The revolving nosepiece is one of the parts of a microscope. Its responsibility is to hold the objective lenses.

6 0
3 years ago
A cell phone manufacturer uses a trendy celebrity to advertise its product to teenagers. The company is relying on the route to
alina1380 [7]

Answer:

ya ik

Explanation:

8 0
3 years ago
Other questions:
  • What’s the difference between weight and support force? *oof*
    11·1 answer
  • A radioactive sample has a count rate of 800 counts per minute. One hour later, the count rate has fallen to 100 counts per minu
    11·1 answer
  • How does Bohr’s model of the atom compare with Thomson’s model?
    8·2 answers
  • If the Coast Guard warns of a giant wave of water approaching the shore as a result of a major earthquake, they are warning of
    11·2 answers
  • A block is released from the top of a frictionless incline plane as pictured above. If the total distance travelled by the block
    13·1 answer
  • What is the acceleration of a 24 kg mass pushed by a 6 N force
    7·1 answer
  • Conductivities are often measured by comparing the resistance of a cell filled with the sample to its resistance when filled wit
    14·1 answer
  • Which statement is true
    6·1 answer
  • A concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35°. The kinetic between the slab and slope is 0.60
    6·1 answer
  • The concentration of a solution that contains 70g of H2SO4 in 0,28 dm³ of solution is?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!