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nikklg [1K]
3 years ago
15

An object in a fluid experiences a buoyant force from the fluid. If the object is completely immersed, on which does the magnitu

de of this force depend on?
Physics
1 answer:
loris [4]3 years ago
4 0

Answer:

Weight of the fluid that the object displaces.

Explanation:

When the fluid is completely immersed in a fluid, it experiences pressure from all the direction. While the object is immersed in the fluid a force acts on it in the opposite direction, i.e., upwards. This force is termed as buoyant force.

Also, as per the Archimedes' Principle, the force experience by the object is the same as the weight of the fluid that gets displaced by the object.

Thus on complete immersion of the object in the fluid, it experiences the force same as the weight of the fluid that gets displaced

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Schizotypal personality disorder and borderline personality disorder 
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3 years ago
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What is the velocity of an electron that has a de Broglie wavelength approximately the length of a chemical bond? Assume this le
melomori [17]

Answer : The velocity of an electron is, 6.1\times 10^{6}m/s

Explanation :

According to de-Broglie, the expression for wavelength is,

\lambda=\frac{h}{p}

and,

p=mv

where,  

p = momentum, m = mass, v = velocity

So, the formula will be:

\lambda=\frac{h}{mv}       .............(1)

where,

h = Planck's constant = 6.626\times 10^{-34}Js

\lambda = wavelength  = 1.2\times 10^{-10}m

m = mass  of electron = 9.11\times 10^{-31}kg

v = velocity of electron = ?

Now put all the given values in formula 1, we get:

1.2\times 10^{-10}m=\frac{6.626\times 10^{-34}Js}{(9.11\times 10^{-31}kg)\times v}

v=6.1\times 10^{6}m/s

Thus, the velocity of an electron is, 6.1\times 10^{6}m/s

6 0
4 years ago
A test charge of +4 µC is placed halfway between a charge of +6 µC and another of +2 µC separated by 20 cm. (a) What is the magn
S_A_V [24]

Answer:

(a) Magnitude: 14.4 N

(b) Away from the +6 µC charge

Explanation:

As the test charge has the same sign, the force that the other charges exert on it will be a repulsive force. The magnitude of each of the forces will be:

F_e = K\frac{qq_{test}}{r^2}

K is the Coulomb constant equal to 9*10^9 N*m^2/C^2, q and qtest is the charge of the particles, and r is the distance between the particles.

Let's say that a force that goes toward the +6 µC charge is positive, then:

F_e_1 = K\frac{q_1q_{test}}{r^2}=-9*10^9 \frac{Nm^2}{C^2} \frac{6*10^{-6}C*4*10^{-6}C}{(0.1m)^2} =-21.6 N

F_e_2 = K\frac{q_2q_{test}}{r^2}=9*10^9 \frac{Nm^2}{C^2} \frac{2*10^{-6}C*4*10^{-6}C}{(0.1m)^2} =7.2 N

The magnitude will be:

F_e = -21.6 + 7.2 = -14.4 N, away from the +6 µC charge

3 0
4 years ago
a box has a length of .5 m and a width of .1m. if the box exerts a force of 10 N on the floor, what is the pressure of the box o
faust18 [17]

Answer:

The pressure of the box on the floor is 200 Pa

Explanation:

Given,

Length of the box=0.5m

Width of the box= 0.1m

∴Area of the box, A= (0.5 X 0.1) sq.m

                                = 0.05 sq.m

We know,

Pressure, P= F/A

                  = 10/0.05 Pa

                  = 200 Pa

∴The pressure of the box on the floor is 200 Pa

4 0
2 years ago
What statements describe acceleration check all that apply?
guapka [62]
Negative acceleration occurs when an object slows down up to stopping at same direction
6 0
3 years ago
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