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Physics

1 answer:

Karo-lina-s [1.5K]3 years ago

8 0

Answer: its b because as soon as you go far away from light it get red and dents

Explanation:

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Runner A is initially 5.3 km west of a flag-

Alik [6]

4.8 km because if u add the other bonus if speed and multiply you check the 48 taking off a decimal point

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3 years ago

Physical activity increases your risk for coronary artery disease. true false

goldfiish [28.3K]

Answer:

false here is why :)

Explanation:

Regular, moderate-intensity physical activity reduces the risk of developing coronary heart disease and can reduce the likelihood of dying from heart disease.

hope this helped.

7 0

3 years ago

Find the kinetic energy ofan electron that moves at half the speed of light to four significant digits.

Vlad1618 [11]

Answer:

Ke=electron kinetic energy= $10.24*10^{33} J$

Explanation:

The electron has a mass of $9.1*10^{-31} kg$

The speed of light in a vacuum is a universal constant with the value 299 792 458 m / s (186 282,397 miles / s), although it is usually close to $3*10^{8} \frac{m}{s}$

Kinetic energy (K) is the energy associated with bodies that are in motion, depends on the mass and speed of the body and is calculated using the formula:

$K=\frac{1}{2} *m*v^{2}$ Equation(1)