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3 years ago

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A gamma ray is pure __________.

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1 answer:

ivanzaharov [21]3 years ago

4 0

A gamma ray<span> is </span>pure<span> energy</span>

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Please help ASAP! Will give brainliest! :)

77julia77 [94]

Answer:

composition :))

Explanation:

5 0

3 years ago

Read 2 more answers

Select the volume units that are greater than one liter.

Andreas93 [3]

A.) kiloliter. 1 kiloliter = 1,000 liters
c.) megaliter. 1 megaliter = 1,000,000 liters

hope this helps

5 0

3 years ago

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A 62 kg boy and a 37 kg girl use an elastic rope while engaged in a tug-of-war on a friction-less icy surface. If the accelerati

Paraphin [41]

Answer:

The magnitude of the acceleration of the boy toward the girl is $1.31\ m/s^2$

Explanation:

It is given that,

Mass of the boy, $m_1=62\ kg$

Mass of the girl, $m_2=37\ kg$

The acceleration of the girl toward the boy is, $a_2=2.2\ m/s^2$

To find,

The acceleration of the boy toward the girl.

Solution,

Let $a_1$ is the magnitude of the acceleration of the boy toward the girl. We know that force acting on one object to other are equal in magnitude but opposite in direction. So,

$F_1=-F_2$

$m_1a_1=-m_2a_2$

$a_1=-\dfrac{m_2a_2}{m_1}$

$a_1=-\dfrac{37\times 2.2}{62}$

$a_1=-1.31\ m/s^2$

$|a_1|=1.31\ m/s^2$

So, the magnitude of the acceleration of the boy toward the girl is $1.31\ m/s^2$

7 0

3 years ago

If two metal balls each have a charge of -10^-6 C and the repulsive force between them is 1 N, how far apart are they? (Coulomb'

Vitek1552 [10]

Answer:

The distance between the charges is 9.5 cm

(c) is correct option

Explanation:

Given that,

Charge $q= 10^{-6}\ C$

Force F = 1 N

We need to calculate the distance between the charges

Using Coulomb's formula

$F = \dfrac{kq_{1}q_{2}}{r^2}$

Where, q = charge

r = distance

F = force

Put the value into the formula

$1=\dfrac{9.0\times10^{9}\times(-10^{-6})^2}{r^2}$

$r=\sqrt{9\times10^{9}\times(-10^{-6})^2}$

$r=0.095\ m$

$r= 9.5\ cm$

Hence, The distance between the charges is 9.5 cm

4 0

3 years ago

A car takes 10 s to go from v = 0 m/s to v = 25 m/s at constant acceleration. If you wish to find the distance traveled using th

german

Initial velocity (u) = 0 m/s

Final velocity (v) = 25 m/s

time taken (t) = 10s

acceleration (a) = ?

Now,

Acceleration is rate of change of velocity, so formula is

a = (v - u)/t

a = (25 - 10)/10

a = 15/10

a = 1.5 m/(s^2)

Use this value of a.

5 0

4 years ago