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Keith_Richards [23]

3 years ago

7

What is the threshold velocity vthreshold(water) (i.e., the minimum velocity) for creating Cherenkov light from a charged partic

le as it travels through water (which has an index of refraction of n

1 answer:

iVinArrow [24]3 years ago

6 0

Answer:

2.3*10^8m/s

Explanation:

Using

V = c/n

Where c= speed of light

n = refractive index of water

By substituting

We have

V= 3*10^8m/s/1.33

= 2.3*10^8m/s

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if a house had timber walls would the heating bill be higher or lower than a house with fiber board and why

Varvara68 [4.7K]

higher, heat might be able to escape

3 0

4 years ago

Write three nuclear equations to represent the nuclear decay sequence that begins with the alpha decay of u-235 followed by a be

vazorg [7]

Answer:

We know that in the decay process the sum of molecular number as well as molecular weight should be constant.

The following three reaction are as follows

1 .

Alpha decay of parent nuclide

$_{92}^{235}\textrm{U} \rightarrow _{90}^{231}\textrm{Th}+_{2}^{4}\textrm{alpha }$

The molecular number of alpha particle is 2 and molecular weight is 4 g/mol.

2.

Beta decay of daughter nuclide

$_{90}^{231}\textrm{Th}\rightarrow _{91}^{231}\textrm{Pa}+_{-1}^{0}\textrm{beta}+v$

v is the neutrino emission,The charge on the beta particle is zero.

3.

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$_{91}^{231}\textrm{Pa}\rightarrow_{89}^{227}\textrm{Pa}+_{2}^{4}\textrm{alpha}$

5 0

4 years ago

Read 2 more answers

) A 73-mH solenoid inductor is wound on a form that is 0.80 m long and 0.10 m in diameter. A coil having a resistance of is tigh

Aleonysh [2.5K]

Complete question is;. A 73mH solenoid inductor is wound on a form that is 0.80m long and 0.10m in diameter a coil having a resistance of 7.7 ohms is tightly wound around the solenoid at its center the mutual inductance of the coil and solenoid is 19μH at a given instant the current in the solenoid is 820mA and is decreasing at the rate of 2.5A/s at the given instant what is the induced current in the coil

Answer:

6.169 μA

Explanation:

Formula for induced EMF is given by the equation;

EMF = M(di/dt). We are given;

di/dt = 2.5 A/s

M = 19μH = 19 × 10^(-6) H

Thus;

EMF = 19 × 10^(-6) × 2.5.

EMF = 47.5 × 10^(-6) V

Formula for current is;

i = EMF/R. R is resistance given as 7.7 ohms.

Thus; i = 47.5 × 10^(-6)/7.7

i = 6.169 μA

5 0

3 years ago

The electric field in a region of space has the components Ey = Ez = 0 and Ex = (4.00 N/C · m) x. Point A is on the y axis at y

igor_vitrenko [27]

Answer:

$V_{b}-V_{a} = -38.72$

Explanation:

Consider the axis diagram attached.

Given:

Ey = Ez = 0

Eₓ = - 4x N/C · m

Since electric field is in x direction, potential difference would be:

$V_{b} - V_{a} =-\int\limits^{4.40}_{0} {E_{x} } \, dx$

Here we integrate between limits 0 and 4.40 which is distance between A and B along x-axis.

$V_{b} - V_{a} = -4 \left[\begin{array}{ccc}\frac{x^{2} }{2} \end{array}\right]^{4.40}_{0}$

$V_{b}-V_{a} = -4 (9.68)\\V_{b}-V_{a} = -38.72$

5 0

3 years ago

A colorless liquid is located in a graduated cylinder that measures 35 mL. If the graduated cylinder has a mass o

Alchen [17]

Density of liquid is 1 g/mL.

<h3>What is density of a substance?</h3>

Density is the ratio of the mass and the volume of a substance

Mathematically density of a substance is given as follows:

Density = mass/volume

The density of the substance is:

mass of liquid = 172 - 137 = 35 g

volume of liquid = 35 mL

Density of liquid = 35 g/35 mL

Density of liquid = 1 g/mL

In conclusion, density is obtained as a ratio of mass and volume.

Learn more about density at: brainly.com/question/1354972

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3 0

2 years ago