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VARVARA [1.3K]
3 years ago
10

True Or False? Stars glow because they produce energy by the process of nuclear fission.

Physics
1 answer:
Vlad1618 [11]3 years ago
7 0

Answer:

yes is the correct snswer

Explanation:

hope this help

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Identify the characteristic of the transverse wave that halved from wave A (black) to wave B (green).
kolbaska11 [484]

Answer:

i believe that the answer is D: wavelength

5 0
3 years ago
Read 2 more answers
What is the mass of a rock lifted 2 meters off the ground that has 196 J of potential energy?
eimsori [14]

Answer:

10kg

Explanation:

Let PE=potential energy

PE=196J

g(gravitational force)=9.8m/s^2

h(change in height)=2m

m=?

PE=m*g*(change in h)

196=m*9.8*2

m=10kg

4 0
3 years ago
Explain why the temperature varies with distance from the Sun in this way?​
GenaCL600 [577]

Answer:

The average surface temperature decreases the further you get from the Sun because the more distant planets receive less energy/heat/sunlight per square meter of their surface. This is because the energy from the Sun spreads out (becomes less concentrated) as you travel further from the source/Sun.

Explanation:

6 0
3 years ago
Which of the following is a result of reduced levels of red blood cells and elevated levels of white blood cells in the body?
Tju [1.3M]
The cells  that circulate in the  bloodstream are generally divided into three types, white blood cells.
8 0
3 years ago
Use the impulse-momentum theorem to find how long a stone falling straight down takes to increase its speed from 5.6 m/s to 10.6
Nezavi [6.7K]

As stated, the impulse and momentum definitions will be used to later find the value of time through the force of gravity. According to the theory, the impulse formula is given as,

I = F\Delta t

Here,

F = Force

\Delta t = Change in time

Now using the impulse theorem we have that,

Change in Impulse = Change in momentum

F\Delta t = \Delta p (1)

The change in momentum is given as

\Delta p = p_f -p_i

\Delta p = (-10.6)-(-5.6)

\Delta p = -5m/s

The force due to gravity is through the Newton's second law

F_g = -mg

Here,

m = mass

g = Acceleration due to gravity

Substitute the value in (1)

-mgt = -5m/s

9.8t = 4.9

t = \frac{5}{9.8}

t = 0.51s

Therefore it will take 0.51s.

7 0
3 years ago
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