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2 years ago

Is nucluer energy renewable or non-renewable and why?

Physics

1 answer:

kati45 [8]2 years ago

7 0

Explanation:

nuclear energy is non renewable resources because it cannot be renewed...

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A child (approximately 4 years old) takes her metal “slinky Toy” (a flexible coiled metal spring) and does various tests to dete

anzhelika [568]

Answer:

248

Explanation:

L = Inductance of the slinky = 130 μH = 130 x 10⁻⁶ H

$l$ = length of the slinky = 3 m

N = number of turns in the slinky

r = radius of slinky = 4 cm = 0.04 m

Area of slinky is given as

A = πr²

A = (3.14) (0.04)²

A = 0.005024 m²

Inductance is given as

$L = \frac{\mu _{o}N^{2}A}{l}$

$130\times 10^{-6} = \frac{(12.56\times 10^{-7})N^{2}(0.005024)}{3}$

N = 248

8 0

3 years ago

Tangential velocity 2. Parabolic pathway 3. Projectile 4. Centripetal acceleration 5. Centripetal force a. acceleration towards

Stels [109]

1. Tangential velocity:

e) the instantaneous velocity of a body moving in a circular path.

2. Parabolic pathway

c. a curved path followed by projectiles

3. Projectile

d) an object projected through space, traveling in two dimensions, that accelerates vertically due to gravity.

4. Centripetal acceleration

a) acceleration towards the center caused by the centripetal force

5. Centripetal force

b) a force which keeps a body moving with a uniform speed along a circular path and is directed along the radius towards the center

4 0

3 years ago

A car jack with a mechanical advantage of 6 needs to produce an output force of 600 N to raise a car. What input force is requir

Mkey [24]

B.) 100 N is the CORRECT answer

Please mark as brainliest! :)

6 0

3 years ago

Read 2 more answers

The emissivity of galvanized steel sheet, a common roofing material, is 0.13 at temperatures around 300 K, while its absorptivit

vfiekz [6]

Answer:

Total heat transfer rate is combined convection and radiation transfer rate, multiplied with absorptivity factor. From that equation you can find temperature of the roof using iteration method.

Explanation:

Known:

steel sheet roof emissivity ∈ = 0.13

steel sheet roof absorptivity $\alpha$ _s = 0.65

air temperature T∞ = 16°C ...= 289K

heat transfer rate $G_s$ = 750 W/m2

natural convection h = 7W/m2K

Total heat transfer rate is combined heat transfer rate of convection and radiation, multiplied with absorptivity factor:

$\alpha$ $G_s$ = $q_{conv} +q_{rad} =hA($ T∞- $T_m$ )+∈σA( $T_{surf} -T_{s} )$

$\alpha$ $G_s$ - $h(T_s-$ T∞)-∈σ( $T_{s} -T_{surf} )$ =0

2562-7 $T_s$ -7.371*10^-9=0

Use iteration method to solve for $T_s$

$T_s$ =350.17 K...=77.17°C

In this particular situation, cat would not be comfortable with walking on a roof since its surface temperature is 77.17°C which may even cause burns to its paws.

4 0

3 years ago

A bus travels 50 km south for 30 minutes and stops for 15 minutes. then it travels 20 km for 15 minutes. what is the average vel

ollegr [7]

The average velocity of the bus is 70 km/hr.

Explanation:

The average velocity of an object is ratio of net displacement to the total time taken.

Average velocity= $\frac{Net displacement}{Total time taken}$

Net displacement, D = 50 + 20 = 70 km

Total time taken to cover this displacement,

T = 30 min + 15 min +30 min + 15 min = 1 hour

Substituting the values,

Average velocity= $\frac{70}{1}$ = 70 km/hr

8 0

3 years ago