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2 years ago

How is nuclear fusion different from an explosion from chemical reactions

1 answer:

8 0

Answer:The main difference between these two processes is that fission is the splitting of an atom into two or more smaller ones while fusion is the fusing of two or more smaller atoms into a larger one.

Explanation:Protons and neutrons make up a nucleus, which is the foundation of nuclear science.

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A moon with a mass of 6.0 x 10 kg orbits about a planet with a mass of 5.0x 10^24 kg. They are 4.0 x 10^8 meters apart What is t

allochka39001 [22]

The gravitational force between them is <em>1.25 x 10^20 Newtons.</em>

(I think you must have typed the mass of the moon wrong.

It must be 6.0 x 10^22 kg.)

4 0

4 years ago

Suppose a tidal basin is 6 m above the ocean at low tide and that the area of the basin is 5×107 m2. Estimate the gravitational

Neko [114]

Answer:

Potential energy will be $176.58\times 10^{11}j$

Explanation:

We have given the height of the basin is h = 6 m

Area of the basin $A=5\times 10^7m^2$

Volume $V=area \times height=5\times 10^7\times 6=30\times 10^7m^3$

Density $\rho =1000kg/m^3$

We know that mass is given by $m=\rho V=1000\times 30\times 10^7=3\times 10^{11}kg$

We know that potential energy is given by $E=mgh=3\times 10^{11}\times 9.81\times 6=176.58\times 10^{11}j$

3 0

3 years ago

6. What is the change in temperature of a metal rod that is 55.0 cm long, decreases length by 0.20 cm, and that has a coefficien

MrMuchimi

Explanation:

We have,

Length of a metal rod is 55 cm or 0.55 m

Change in length is 0.2 cm or 0.002 m

It is required to find the change in temperature of a metal rod. The coefficient of linear expansion is given by :

$\alpha =\dfrac{\Delta L}{L_0\Delta T}$

$\Delta T$ is the change in temperature

$\Delta T =\dfrac{\Delta L}{L_0\alpha }\\\\\Delta T =\dfrac{0.002}{0.55\times 12\times 10^{-6}}\\\\\Delta T= 303.03^{\circ} C$

So, the change in temperature is 303.03 degrees Celsius.

4 0

3 years ago

Fill in the blanks<br>a. Work is assosiated with ___________ and _________ .

Kitty [74]

Answer: Job and career

Explanation:

Work is associated with job and career. If somebody is having a great career and if somebody wants a great career he will look for a job that is fitting his career and in that way, he will work for it to have an even better career which will bring him a better job.

3 0

3 years ago

A uniform stick 1.0 m long with total mass of 270 g is pivoted at it's center.

evablogger [386]

Answer:

ω = 3.66 rad/s

Explanation:

Given that

L= 1 m

M = 270 g = 0.27 kg

m = 3 g

u= 250 m/s

v= 140 m/s

We know that moment of inertia of the rod about it center

$I=\dfrac{1}{12}ML^2$

$I=\dfrac{1}{12}0.27\times 1^2$

I=0.0225 kg.m²

The initial angular momentum

L₁ = m u r

Final angular momentum

L₂= I ω+m v r

Here r= L/4

r= 0.25 m

There is no any external torque ,it means that angular momentum will be conserve

L₁ = L₂

m u r = I ω+m v r

m r (u - v)=I ω

Now by putting the values

m r (u - v)=I ω

0.003 x 0.25 x (250- 140)=0.0225 x ω

ω = 3.66 rad/s

5 0

4 years ago