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
olga55 [171]
3 years ago
8

What are the conditions to increase the stability of a body?​

Physics
1 answer:
cricket20 [7]3 years ago
5 0
Training everyday
..........
You might be interested in
A long solenoid has 103 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.60 cm perp
Aneli [31]

Answer:

0.23348 A

Explanation:

B = Magnetic field

v = Velocity of electron = 1.38\times 10^7\ m/s

q = Charge of electron = 1.6\times 10^{-19}\ C

\mu_0 = Vacuum permeability = 4\pi \times 10^{-7}\ H/m

r = Radius of circle = 0.026 m

N = Number of turns = 103 turns/cm = 103\times 100\ turns/m

I = Current

The magnetic and centripetal force will be balanced

Bqv=m\frac{v^2}{r}\\\Rightarrow B=\frac{mv}{qr}

The magnetic field in solenoid is given by

B=N\mu_0 I\\\Rightarrow I=\frac{B}{N\mu_0}

From the first equation

I=\frac{\frac{mv}{qr}}{N\mu_0}\\\Rightarrow I=\frac{mv}{N\mu_0qr}\\\Rightarrow I=\frac{9.11\times 10^{-31}\times 1.38\times 10^7}{103\times 100\times 4\pi \times 10^{-7}\times 1.6\times 10^{-19}\times 0.026}\\\Rightarrow I=0.23348\ A

The current in the solenoid is 0.23348 A

8 0
3 years ago
A satellite orbits the earth at a speed of 8.0x 10^3m/s . Calculate the period of orbit of the satellite if the distance between
gladu [14]

Hi there!

The period of an orbit can be found by:

T = \frac{2\pi r}{v}

T = Period (? s)
r = radius of orbit (6400000 m)

v = speed of the satellite (8000 m/s)

This is the same as the distance = vt equation. The total distance traveled by the satellite is the circumference of its circular orbit.

Let's plug in what we know and solve.

T = \frac{2\pi (6400000)}{8000} = \boxed{5026.55 s}

8 0
1 year ago
The tow spring on a car has a spring constant of 3,086 N / m and is initially stretched 18.00 cm by a 100.0 kg college student o
sdas [7]

Answer:

The velocity of the skateboard is 0.774 m/s.

Explanation:

Given that,

The spring constant of the spring, k = 3086 N/m

The spring is stretched 18 cm or 0.18 m

Mass of the student, m = 100 kg

Potential energy of the spring, P_f=20\ J

To find,

The velocity of the car.

Solution,

It is a case of conservation of energy. The total energy of the system remains conserved. So,

P_i=K_f+P_f

\dfrac{1}{2}kx^2=\dfrac{1}{2}mv^2+20

\dfrac{1}{2}\times 3086\times (0.18)^2=\dfrac{1}{2}mv^2+20

50-20=\dfrac{1}{2}mv^2

30=\dfrac{1}{2}mv^2

v=\sqrt{\dfrac{60}{100}}

v = 0.774 m/s

So, the velocity of the skateboard is 0.774 m/s.

7 0
3 years ago
A 143 kg astronaut is floating in
Dima020 [189]

The recoil velocity of the astronaut is -0.070 m/s

Explanation:

We can solve this problem by using the principle of conservation of momentum: in fact, in absence of external forces, the total momentum of the astronaut-wrench system must be conserved.

At the beginning, their total momentum is zero:

p=0 (1)

Later, after the astronaut throws the wrench, the total momentum is

p=mv+MV (2)

where

m = 0.725 kg is the mass of the wrench

v = 13.8 m/s is the velocity of the wrench

M = 143 kg is the mass of the astronaut

V is the recoil velocity of the astronaut

Since momentum is conserved, (1) = (2), and so we can find V:

0=mv+MV\\V=-\frac{mv}{M}=-\frac{(0.725)(13.8)}{143}=-0.070 m/s

Learn more about momentum:

brainly.com/question/7973509

brainly.com/question/6573742

brainly.com/question/2370982

brainly.com/question/9484203

#LearnwithBrainly

5 0
3 years ago
The study of ____ is called kinematics
weqwewe [10]
Motaion would be it have a good day
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the relationship between mass and gravitational force between any two objects?
    15·1 answer
  • Two 1.1 kg masses are 1 m apart (center to center) on a frictionless table. Each has +10 JC of charge. What is the initial accel
    10·1 answer
  • Sound will not travel through <br> A. A vacuum<br> B. Solids<br> C. Liquids <br> D. Gases
    5·1 answer
  • A net force of 60 N north acts on an object with a mass of 30 kg. Use Newton's second law of motion to calculate the amount of a
    12·1 answer
  • Thr frequency of a wave traveling throught the air of a hot, dry desert is 1,200 hertz. Its wavelength is 0.300 meters. What is
    13·1 answer
  • What is the average speed in miles per hour of the car that traveled a total of 200 miles in 5.5 hours
    13·2 answers
  • a 2 kg laptop sits on the floor near a 4 kg jar of pennies. if the force of gravity between them is 3.42× 10⁻¹⁰ , how far apart
    9·1 answer
  • Explain why each element has a unique spectrum of absorption or emission lines.
    6·1 answer
  • When elements bond together or when bonds of compounds are broken and form a new substance
    14·2 answers
  • How many dots belong in the electron dot diagram of a boron (B) atom?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!