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Gnoma [55]
3 years ago
5

Convert 47 meters to gigameters

Physics
1 answer:
snow_tiger [21]3 years ago
8 0

Answer: 4.7× 10-8 gigameter.

Exgiga meter. Hope this helps :)

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Lifting book over your head is what type of energy
AleksandrR [38]

Answer:

potential energy

Explanation:

8 0
2 years ago
alculate the kinetic energies of (a) a 2.00×103-kg automobile moving at 100.0 km/h; (b) an 80.0-kg runner sprinting at 10.0 m/s;
zzz [600]

Answer:

(a) 7.72×10⁵ J

(b) 4000 J

(c) 1.82×10⁻¹⁶ J

Explanation:

Kinetic Energy: This can be defined energy of a body due to its motion. The expression for kinetic energy is given as,

Ek = 1/2mv²................... Equation 1

Where Ek = Kinetic energy, m = mass, v = velocity

(a)

For a moving automobile,

Ek = 1/2mv².

Given: m = 2.0×10³ kg, v = 100 km/h = 100(1000/3600) m/s = 27.78 m/s

Substitute into equation 1

Ek = 1/2(2.0×10³)(27.78²)

Ek = 7.72×10⁵ J

(b)

For a sprinting runner,

Given: m = 80 kg, v = 10 m/s

Substitute into equation 1 above,

Ek = 1/2(80)(10²)

Ek = 40(100)

Ek = 4000 J

(c)

For a moving electron,

Given: m = 9.10×10⁻³¹ kg, v = 2.0×10⁷ m/s

Substitute into equation 1 above,

Ek = 1/2(9.10×10⁻³¹)(2.0×10⁷)²

Ek = 1.82×10⁻¹⁶ J

8 0
3 years ago
All but one statement applies to electromagnetic radiation
lina2011 [118]
<span>D) Electromagnetic radiation travels in the form of longitudinal waves.</span>
3 0
3 years ago
A certain parallel-plate capacitor is filled with a dielectric for which κ = 5.0. The area of each plate is 0.027 m2, and the pl
alexdok [17]

Answer:

Energy will be 4.776\times 10^{-5}J  

Explanation:

We have given that dielectric constant k = 5

Area of the plate A=0.027m^2

Distance between the plates d=2mm=2\times 10^{-3}m

Electric field E = 200 kN/C

We know that capacitance is given by C=\frac{K\epsilon _0A}{d}=\frac{5\times 8.85\times 10^{-12}\times 0.027}{2\times 10^{-3}}=0.597\times 10^{-9}F

We know that electric field is given by E=\frac{V}{d}

So V=Ed=200\times 10^3\times 2\times 10^{-3}=400volt

So energy will be E=\frac{1}{2}CV^2=\frac{1}{2}\times 0.597\times 10^{-9}\times 400^2=4.776\times 10^{-5}J

6 0
3 years ago
We start with 5.00 moles of an ideal monatomic gas with an initial temperature of 129 ∘C. The gas expands and, in the process, a
harkovskaia [24]

The solution is in the attachment

6 0
3 years ago
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