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
sergejj [24]
3 years ago
13

four equal charges of +3microcolumb are placed at the four corners of a square that is 40cm on a side. Find the force on any one

of the charge.​
Physics
1 answer:
Reil [10]3 years ago
6 0

Answer:

i can see your question

pls fast

You might be interested in
A liquid of density 1288 kg/m3 flows with speed 2.88m/s into a pipe of diameter 0.24 m. The diameter of the pipe decreases to 0.
Tju [1.3M]

Answer:

66.35m/s

Explanation:

Para resolver el ejercicio es necesario la aplicación de las ecuaciones de continuidad, que expresan que

A_1V_1 =A_2 V_2

From our given data we can lower than:

R_i = \frac{0.24}{2} = 0.12m

R_f = \frac{0.05}{2} = 0.025m

So using the continuity equation we have

A_1V_1 =A_2 V_2

V_2 = \frac{A_1V_1}{A_2}

V_2 = \frac{(\pi(0.12^2))(2.88)}{(\pi (0.25)^2)}

V_2 = 66.35m/s

Therefore the velocity at the exit end is  66.35m/s

8 0
3 years ago
Because not all stars are the same distance from earth, it can be difficult to determine?
Inessa [10]
I think answer is A. The Brightness of a Star
8 0
3 years ago
Read 2 more answers
Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes the
Genrish500 [490]

Explanation:

Given:

Final speed of mass A = Va

Final speed of mass B = Vb

Mass of A = Ma

Mass of B = Mb

Ma = 2 × Mb

By conservation of linear momentum,

0 = Ma × Va + Mb × Vb

0 =  2 × Mb × Va + Mb × Vb

Vb = - 2 × Va              

Energy of the spring, U = 1/2 × k × x^2

1/2 k x² = 1/2 × Ma × Va² + 1/2 × Mb × Vb²

35 = 1/2 × Ma × Va² + 1/2 × Mb × Vb²

Ma × Va² + Mb × Vb² = 70

2 × Mb (-Vb/2)² + Mb × Vb² = 70

1/2 × Mb × Vb² + Mb × Vb² = 70

3/2 × Mb × Vb² = 70

Mb × Vb² = 140/3

= 46.7 J

Ma = 2 × Mb and Vb = - 2 × Va

Ma/2 × (4 × Va²) = 140/3

Ma × Va² = 70/3

Kinetic energy of mass A, KEa = 1/2 × Ma × Va² = 23.3 J

Kinetic energy of mass B = 1/2 × Mb × Vb² = 46.7 J

8 0
2 years ago
3. A cat is moving at 18 m/s when it accelerates at 4 m/s2 for 2 seconds. What is
salantis [7]

Answer:

v=u+at

v=8+(4x2)

v=16m\s2

4 0
3 years ago
Which statement is true?
vlabodo [156]
Correct Answer is B.

In a parallel circuit, the voltage is same across all the branches however the current in each branch is different and depends on the resistance of that branch. 

Points to Remember:
1) In series circuit current remains the same and voltage varies
2) In parallel circuit voltage remains the same and current varies
8 0
2 years ago
Read 2 more answers
Other questions:
  • A boat takes 4.0 h to travel 36 km down a river, then 5.0 h to return.how fast is the river flowing
    5·1 answer
  • Is the momentum of a 0.1 kg Mass moving with a velocity of 5 miles per second West
    7·2 answers
  • the pull of gravity on mars is 3.7m/s^2. if a astronaut on mars lifts a 10 kg rock 1 m off the ground, just to see whats under i
    13·1 answer
  • A 1.0-kg ball is attached to the end of a 2.5-m string to form a pendulum. This pendulum is released from rest with the string h
    7·1 answer
  • A large fake cookie sliding on a horizontal surface is attached to one end of a horizontal spring with spring constant k = 440 N
    8·1 answer
  • Facts about sunspots
    9·2 answers
  • Circular motion formulas
    12·1 answer
  • An athlete whirls a 7.00 kg hammer 1.8 m from the axis of rotation in a horizontal circle, as
    6·1 answer
  • How long does it take an object to travel 375 m at a rate of 25 m/s?
    7·1 answer
  • What is the gravitational field strength of a 5 kg object that weighs 25 N?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!