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
son4ous [18]
3 years ago
10

Assume that you have two objects, one with a mass of 6 kg and the other with a mass of 17 kg, each with a charge of −0.027 c and

separated by a distance of 3 m. what is the electric force that these objects exert on one another? answer in units of n. what is the gravitational force between them? answer in units of n.
Physics
1 answer:
kirill115 [55]3 years ago
3 0
Ken jenr ewjk hfjek kwe hwlr herw hriehr jkwehrt 
You might be interested in
What career has to do with fossil fuels??
ki77a [65]
Paleontology is the scientific study of life that existed prior to
8 0
3 years ago
A bike travels at a constant speed of 4.0m/s for 5 seconds. How far it goes ?
alex41 [277]
The speed of 4m/s means that the bike goes 4 meters for each second of movement. Multiplying this by 5 seconds we have a total distance travelled of 20m.
3 0
3 years ago
Read 2 more answers
A wooden block of mass M resting on a frictionless, horizontal surface is attached to a rigid rod of length ℓ and of negligible
mr Goodwill [35]

Answer:

a)

mv l

b)

\frac{M }{(M + m)}

Explanation:

Complete question statement is as follows :

A wooden block of mass M resting on a friction less, horizontal surface is attached to a rigid rod of length ℓ and of negligible mass. The rod is pivoted at the other end. A bullet of mass m traveling parallel to the horizontal surface and perpendicular to the rod with speed v hits the block and becomes embedded in it.

(a) What is the angular momentum of the bullet–block system about a vertical axis through the pivot? (Use any variable or symbol stated above as necessary.)

(b) What fraction of the original kinetic energy of the bullet is converted into internal energy in the system during the collision? (Use any variable or symbol stated above as necessary.)

a)

m = mass of the bullet

v = velocity of the bullet before collision

r = distance of the line of motion of bullet from pivot = l

L = Angular momentum of the bullet-block system

Angular momentum of the bullet-block system is given as

L = m v r

L = mv l

b)

V = final velocity of bullet block combination

Using conservation of momentum

Angular momentum of bullet block combination = Angular momentum of bullet

(M + m) V l = m v l\\V =\frac{mv}{(M + m)}

K_{o} = Initial kinetic energy of the bullet

Initial kinetic energy of the bullet is given as

K_{o} = (0.5) m v^{2}

K_{f} = Final kinetic energy of bullet block combination

Final kinetic energy of bullet block combination is given as

K_{f} = (0.5) (M + m) V^{2}

Fraction of original kinetic energylost is given as

Fraction = \frac{(K_{o} - K_{f})}{K_{o}} = \frac{((0.5) m v^{2} - (0.5) (M + m) V^{2})}{(0.5) m v^{2}}

Fraction = \frac{(m v^{2} - (M + m) (\frac{mv}{(M + m)})^{2})}{m v^{2}} = \frac{(Mm v^{2} + m^{2} v^{2} - m^{2} v^{2})}{(M + m) m v^{2}}

Fraction = \frac{(Mm v^{2} + m^{2} v^{2} - m^{2} v^{2})}{(M + m) m v^{2}}\\ \frac{M }{(M + m)}

6 0
3 years ago
If an automobile had a 100%-efficient engine, transferring all of the fuel's energy to work, would the engine be warm to your to
svetlana [45]

Answer:

The engine would be warm to touch, and the exhaust gases would be at ambient temperature. The engine would not vibrate nor make any noise. None of the fuel entering the engine would go unused.

Explanation:

In this ideal engine, none of these events would happen due to the nature of the efficiency.

We can define efficiency as the ratio between the used energy and the potential generable energy in the fuel.

n=W, total/(E, available).

However, in real engines the energy generated in the combustion of the fuel transforms into heat (which heates the exhost gases, and the engine therefore transfering some of this heat to the environment). Also, there are some mechanical energy loss due to vibrations and sound, which are also energy that comes from the fuel combustion.

5 0
3 years ago
Given the nuclear equation:
Leokris [45]
This is a nuclear fission reaction, in which a larger nucleus is bombarded with a neutron to make it break down into two smaller nuclei and release energy.
6 0
3 years ago
Other questions:
  • Byun walked 15 blocks in 25 minutes. What was his average speed?
    15·1 answer
  • A child of mass 46.2 kg sits on the edge of a merry-go-round with radius 1.9 m and moment of inertia 130.09 kg m2 . The merrygo-
    13·1 answer
  • Ice has a specific heat of 2090 J/(kg C) and water has a specific heat of 4186 J/(kg C). Water has a latent heat of fusion of 3.
    5·1 answer
  • What drug is an illegal stimulant
    8·1 answer
  • The landing of a spacecraft is cushioned with the help of airbags. During its landing on Mars, the velocity of downward fall is
    8·2 answers
  • In a hydroelectric dam, water falls 35.0 m and then spins a turbine to generate electricity. Suppose the dam is 80% efficient at
    6·1 answer
  • What system includes oceans, lakes, rivers, and groundwater?
    11·2 answers
  • Waves are often caused by
    13·2 answers
  • Grade 8 Science Admin. May 2018 Released
    14·2 answers
  • Which of the following does not dissolve in water​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!