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4 years ago

Why does the Moon not have an atmosphere?

1 answer:

Elena-2011 [213]4 years ago

6 0

Answer: Moon is much smaller in size and has very less mass, when compared to our mighty earth and there is absence of strong magnetic field on the moon which could protect from the incoming solar radiation from the sun. Since there is no magnetic field, it can swipe off any materials that are present there on the moon, diminishing the atmosphere.

This is the reason why moon does not have any atmosphere.

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If san andreas fault slips 2.5 cm each year how far would it separate in 100 years

nadya68 [22]

Answer:

250cm or 2.5m

Explanation:

using direct variation

the length is = l

the time (year) = t

let k be the constant

so he have:

l=kt

2.5=k× 1

k= 2.5

Now in the next statement the 100 is given but not the length so

l=kt

~ l=k× 100 years

But k = 2.5

so :

l= 2.5×100

l= 250 cm

Hence it will be 250cm or 2.5m at which they will get separated

7 0

4 years ago

What is 174HZ and its pitch

Lubov Fominskaja [6]

The lowest recognized solfeggio frequency is 174 Hz, also known as the healing frequency. It has the greatest impact on the body and physical health, rather than spiritual or mental health. People mainly experience pain relief from this frequency, although it also reduces stress.

Answer: 174 Removes pain.

8 0

3 years ago

A ball is thrown upward with a speed of 40 m/s. Approximately how much time goes it take the ball to travel from the release loc

yulyashka [42]

Answer:

(I). The time at highest point 4.0 sec.

(II). It returns to back to its original height in 8.1 sec

Explanation:

Given that,

Velocity $v=40\ m/s$

(I). We need to calculate the time at highest point

Using equation of motion

$v=u+gt$

Where, v = final velocity

u = initial velocity

g = acceleration due to gravity

t = time

Put the value into the formula

$0=40-9.8t$

$-40=-9.8t$

$t=\dfrac{40}{9.8}$

$t=4.0\ sec$

(II). We know that, when the ball to travel from the initial point and reached at initial point then the displacement is zero.

We need to calculate the total time when it returns to back to its original height

Using equation of motion

$s=ut-\dfrac{1}{2}gt^2$

Where, s = displacement

g = acceleration due to gravity

t = time

u = velocity

Put the value in the equation

$0=40t-\dfrac{1}{2}9.8t^2$

$80t-9.8t^2=0$

$t=0, 8.1 sec$

Hence. (I). The time at highest point 4.0 sec.

(II). It returns to back to its original height in 8.1 sec

5 0

3 years ago

A reaction that releases energy as it occurs is classified as a(n ________.

cluponka [151]

The reaction that releases energy is called an EXOTHERMIC process. This is a word from the prefix exo- which means to exit and from the root word therm which is a unit of heat which in turn is form of energy. This is the opposite process of ENDOTHERMIC process.

3 0

3 years ago

A snowboarder starts from rest at the top of a slope. They accelerate to 35 m/s over 9 seconds. What is their acceleration?

leonid [27]

a=v-u/t

v=35m/s

t=9

a=35/9
a=3.88m/s²

4 0

3 years ago