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3 years ago

PLEASEEE HELP Write a few sentences- addressing this prompt. Is this a true statement? Exlpain Why or why not.

1 answer:

8 0

True.
Explanation:
Earths tilted axis causes the seasons. Different parts of the earth receive the suns most direct rays. So when The north tilts towards the sun, it is summer in the northern hemisphere. Meaning when south tilts towards the sun, it’s winter in the northern hemisphere.
HOPE THAT HELPS <3

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Alexxandr [17]

I am 100% sure its A.

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3 years ago

Read 2 more answers

In abiding by the code of ethics, forensic scientists must possess what characteristics or ethics?

bixtya [17]

Scientists must have an unbiased type of investigation. These type of science requires three major characteristics for it to be functional and sticked to the truth: they must be impartial, accuarate and truthful. Without these characteristics there is no way forensic science must be treated as science.

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3 years ago

Increasing the concentration of greenhouse gases in Earth's atmosphere decreases the transparency of the atmosphere to infrared

kondaur [170]

Answer:

Decreases the transparency of the atmosphere to infrared light.

Explanation:

When a large amount of green-house gases are present in the atmosphere, the layer of these gases become opaque to infrared radiation and radiation from the sun get trapped into these gases molecules. These excited molecules radiate this energy into our own atmosphere and that why the temperature of Earth is rising due to the Green-House effect.

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3 years ago

You have developed a method in which a paint shaker is used to measure the coefficient of static friction between various object

Paladinen [302]

Answer:

0.62

Explanation:

A = Amplitude

f = Frequency = 1.85 Hz

$\mu$ = Coefficient of static

g = Acceleration due to gravity = 9.81 m/s²

Angular frequency

$\omega=2\pi f\\\Rightarrow \omega=2\pi\times 1.85$

Maximum acceleration

$a_{max}=A\omega^2\\\Rightarrow a_{max}=0.045\times (2\pi\times 1.85)^2$

$a_{max}=\mu g\\\Rightarrow \mu=\frac{a_{max}}{g}\\\Rightarrow \mu=\frac{0.045\times (2\pi\times 1.85)^2}{9.81}\\\Rightarrow \mu=0.62$

Coefficient of static friction between penny and tabletop is 0.62

6 0

4 years ago

Two identical cars are traveling at the same speed. One is heading due east and the other due north, as the drawing shows. Which

VMariaS [17]

Answer:

A) They have the same kinetic energies, but different momenta.

Explanation:

Before answering, let's remind that:

- Kinetic energy is a scalar quantity, which is given by:

$K=\frac{1}{2}mv^2$

where m is the mass of the object and v is the speed.

- Momentum is a vector quantity, whose magnitude is given by:

$p=mv$

where m is the mass of the object and v is the velocity, and whose direction is the same as the velocity.

By looking at the two definitions, we can say that:

- the two cars have same kinetic energy, because they have same mass and same speed

- The two cars have different momenta, because they do not have same velocity (in fact, their directions are different, since one is heading east and the other one is heading north)

6 0

3 years ago