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3 years ago

Which instrument is used to measure liquid volume?

Physics

2 answers:

Alecsey [184]3 years ago

3 0

Volumetric cylinders and volumetric flasks

zhuklara [117]3 years ago

3 0

The answer is cylinder blocks

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Two long, parallel wires are attracted to each other by a force per unit length of 305 µN/m. One wire carries a current of 25.0

kykrilka [37]

To solve this problem we will use the concepts related to the electromagnetic force related to the bases founded by Coulumb, the mathematical expression is the following as a function of force per unit area:

$\frac{F}{L} = \frac{kl_1l_2}{d}$

Here,

F = Force

L = Length

k = Coulomb constant

I =Each current

d = Distance

Force of the wire one which is located along the line y to 0.47m is $305*10^{-6}N/m$ then we have

$l_2 = \frac{F}{L} (\frac{d}{kl_1})$

$l_2 = (305*10^{-6}N/m)(\frac{0.470m}{(2*10^{-7})(25A))})$

$l_2 = 28.67A$

Considering the B is zero at

$y = y_1$

$\frac{kI_2}{2\pi y} =\frac{kI_1}{2\pi y_1}$

$\frac{(4\pi*10^{-7})(28.67)}{2\pi (y_1)} = \frac{(4\pi *10^{-7})(25)}{2\pi (0.47-y_1)}$

$y_1 = 0.25m$

Therefore the value of y for the line in the plane of the two wires along which the total B is zero is 0.25m

5 0

4 years ago

a car is rolling backward when it hits the gas. after 8.25 s it is moving forward at 8.62m/s, and is 12.9m to the right of its s

MAXImum [283]

Answer: = . /

Explanation:

The acceleration is

= − 0

In our case, the initial velocity has minus sign.

Thus,

= − (−0) = + 0

Substituting

0 = 2 ( + 0 ) − = 2 + 0 2 −

Thus,

0 2 = 2 −

So,

0 = − = 8.62 − 12.9

8.25 = 7.06 m/s

Answer: = . /

7 0

4 years ago

Read 2 more answers

Calculate the approximate force on a square meter (1.00 m3) of sail, given the horizontal velocity of the wind is 6.00 m/s paral

KiRa [710]

Answer:

The force exerted on square meter of cubic sail is F = 15.3 N

Explanation:

Given:-

- The face area of cubic sail, A = 1 m^2

- The velocity at frontal face, v1 = 6.0 m/s

- The velocity at back face, v2 = 3.5 m/s

- The density of air. ρ = 1.29 kg/m^3

Find:-

Calculate the approximate force on a square meter (1.00 m3) of sail

Solution:-

- We will apply the Bernoulli's equation to the flow of air around the cubic sail. Assuming that elevation changes are negligible. The constant elevation Bernoulli's equation is:

P1 + ρ*v1^2 / 2 = P2 + ρ*v2^2 / 2

- The force (F) applied by any fluid is given by:

F = ( P2 - P1 )*A

- Re-arranging bernoulli's expression:

P2 - P1 = ρ/ 2 [ v2^2 - v1^2 ]

- Multiple the equation by area A:

A*[P2 - P1] = A*ρ/ 2 [ v1^2 - v2^2 ]

F = A*ρ/ 2 [ v1^2 - v2^2 ]

- Plug in the values:

F = (1)*(1.29/2)*[ 6^2 - 3.5^2 ]

F = 15.3 N

7 0

4 years ago

The go kart driver does 1234J of work when hitting a barrier. Assuming the barrier moved 100 meters from its original location,

leva [86]

Force=1234J*100m
So the answer is 123400

6 0

3 years ago

Read 2 more answers

What happens when a boxer doesn't make weight?

ryzh [129]

They would just have to box in a higher weight class

6 0

4 years ago