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3 years ago

You and a friend get to spend a fun summer day at

Physics

1 answer:

Veseljchak [2.6K]3 years ago

7 0

Curved because, if you’ve ever been to a real one, you know when you hit the curve it goes faster usually

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When the plutonium bomb was tested in New Mexico in 1945, approximately 1 gram of matter was converted into energy. Suppose anot

Softa [21]

Answer:

$1.08 * 10^{14} J$

Explanation:

Energy and mass are related by the famous equation developed by Albert Einstein:

$E = mc^2$

where m = mass and c = speed of light

This equation explains that an object with very small mass can produce a large amount of energy in reactions such as a nuclear reaction.

Hence, the energy produced by the explosion of a Plutonium bomb containing 3.6 grams of matter is:

$E = 3.6 * 10^{-3} * (3 * 10^8)^2$

E = $1.08 * 10^{14} J$

3 0

3 years ago

Find the acceleration of an object that has a mass of 6 kg, if it is acted upon by a net force of 42 N.

pychu [463]

Answer:

7 m/s²

Explanation:

The formula for force is:

$f= m*a$

We want to find acceleration, so we must rearrange the formula for $a$ . Divide both sides of the equation by $m$

$\frac{f}{m}=\frac{m*a}{m}$

$\frac{f}{m}=a$

Acceleration can be found by dividing the force by the mass.

The force is 42 newtons and the mass is 6 kilograms. A newton is equal to 1 kg * m/s², therefore the force is 42 kg* m/s².

$f= 42 kg*m/s^2\\m=6 kg$

Substitute the values into the formula.

$a=\frac{f}{m}$

$a=\frac{42 kg*m/s^2}{6kg}$

Divide. When we divide, the kg in the numerator and denominator will cancel each other out.

$a=\frac{42}{6}m/s^2$

$a= 7 m/s^2$

The acceleration of the object is 7 meters per square seconds.

7 0

3 years ago

As your rockets went upwards how would you describe how the energies changed?

chubhunter [2.5K]

As a rocket increases height and slows down, it gains more and more potential energy and loses more and more kinetic energy. Potential energy is store energy (usually determined by height), and kinetic energy increases as speed increases.

4 0

3 years ago

3 small identical balls have charges -3×10^-12 ,8×10^-12 and 4×10^-12 find the charge

Norma-Jean [14]

Answer:

3×10^-12 C

Explanation:

The total of the three charges is ...

(-3 +8 +4)×10^-12 C = 9×10^-12 C

Assuming the charge is equally distributed between the balls when they are brought in contact, the charge on each ball will be ...

(9/3)×10^-12 C = 3×10^-12 C

7 0

3 years ago

HEEEEEEELLLLLLLPPPPP

Firdavs [7]

Answer:

the less shielding of electrons

6 0

3 years ago