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2 years ago

An atom with more or less neutrons than expected is a what ?

Physics

1 answer:

salantis [7]2 years ago

4 0

Answer:

Isotope it will have a different number of neutrons than normal

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A ten loop coil of area 0.23 m2 is in a 0.047 T uniform magnetic field oriented so that the maximum flux goes through the coil.

andrezito [222]

Answer:

Explanation:

From the question we are told that:

Number of turns $N=10$

Area $a=0.23m^2$

Magnetic field $B=0.947T$

Generally the equation for maximum flux is mathematically given by

$\phi=NBa$

$\phi=10*0.047*0.23$

$\phi=0.1081wbi$

Therefore induced emf

$e= \frac{d\phi}{dt}$

Since

$t=0$

Therefore

$e=0$

4 0

2 years ago

A fluid flows through two horizontal pipes of equal length which are connected together to form a pipe of length 2l. The flow is

Alexxx [7]

Answer:

Explanation:

For rate of flow of liquid in a pipe , the formula is

Q = π p r⁴ / 8 η l

where Q is volume of liquid flowing per unit time , p is pressure drop across pipe , r is radius of pipe , η is coefficient of viscosity and l is length of pipe

If η and l are constant for two pipes having equal rate of flow as in the given case

p₁ r₁⁴ = p₂ r₂⁴

p₁ = 1.789 p₂ ( given )

r₁ = D/2

1.789 p₂ x (D/2)⁴ = p₂ x r₂⁴

r₂ = $\frac{D}{2}\times\sqrt[4 ]{1.789}$

2 x r₂ = D x 1.1565

D₂ = D x 1.1565

6 0

2 years ago

What two things increase the gravitational pull between two objects?

stiv31 [10]

In order to increase the gravitational forces between two objects,
you have exactly two choices:

-- Increase the product of the two masses.

-- Decrease the distance between their centers of mass.

5 0

2 years ago

Read 2 more answers

Determine the length of the tungsten filament in a 100 watt lightbulb given: (i) the resistivity of tungsten is 5.6 × 10−8 Ω · m

svetoff [14.1K]

Answer:

0.34148 m

Explanation:

$\rho$ = Resistivity of tungsten = $5.6\times 10^{-8}\ \Omega m$

d = Diameter = 0.0018 inch

r = Radius = $\dfrac{r}{2}=\dfrac{0.0018}{2}=0.0009\ in$

$r=0.0009\times 0.0254=0.00002286\ m$

$\alpha$ = Temperature coefficient of tungsten = $0.0045 /^{\circ}C$

Power is given by

$P=\dfrac{V^2}{R}\\\Rightarrow R=\dfrac{V^2}{P}\\\Rightarrow R=\dfrac{120^2}{100}\\\Rightarrow R=144\ \Omega$

We have the equation

$R_2=R_1[1+\alpha(T_2-T_1)]\\\Rightarrow R_1=\dfrac{R_2}{1+\alpha(T_2-T_1)}\\\Rightarrow R_1=\dfrac{144}{1+0.0045(2550-25)}\\\Rightarrow R_1=11.64812\ \Omega$

Resistance is given by

$R=\rho\dfrac{l}{A}\\\Rightarrow l=\dfrac{RA}{\rho}\\\Rightarrow l=\dfrac{11.64812\times \pi (0.00002286)^2}{5.6\times 10^{-8}}\\\Rightarrow l=0.34148\ m$

The length of the filament is 0.34148 m

7 0

3 years ago

Which of the following involves an endothermic reaction?

pav-90 [236]

The answer would be c

8 0

2 years ago

Read 2 more answers