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3 years ago

In general, fitness evaluations are meant to help you measure your physical fitness against those of similar age and gender

Physics

2 answers:

kirill [66]3 years ago

8 0

Answer:

true

Explanation:

edge2020

AysviL [449]3 years ago

7 0

Answer:

The answer is true on Edgenuity.

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What form of matter is vapor?

katrin [286]

The form of matter that is vapor is a gas made of a substance that is usually liquid.
Vapor is created when water, or some other liquid evaporates - meaning that it becomes so hot in a room, or wherever, that the liquid starts becoming gas.

5 0

3 years ago

The temperature inside a vehicle can rise ____ degrees higher than the outside temperature.

Elis [28]

Answer:

Generally, 40 to 50 degrees

Explanation:

About the heat-up over time, whether the windows of a vehicle are locked or partially open makes very little difference. In both situations, in an internal temperature of a vehicle, even at an outside temperature of only 72 ° F, it may exceed approximately 40 ° F within one hour. This happens mainly due to the greenhouse effect that is the heat inside the car is trapped and not allowed to escape. Thus, raising the temperature of the vehicle.

3 0

3 years ago

Wave-particle duality tells us that wave and particle models apply to all objects whatever the size, so why don't we observe wav

Genrish500 [490]

Answer:

Because the wavelengths of macroscopic objects are too short for them to be detectable.

Explanation:

Wavelength of an object is given by de Broglie wavelength as:

$\lambda=\frac{h}{mv}$

Where, 'h' is Planck's constant, 'm' is mass of object and 'v' is its velocity.

So, for macroscopic objects, the mass is very large compared to microscopic objects. As we can observe from the above formula, there is an inverse relationship between the mass and wavelength of the object.

So, for vary larger masses, the wavelength would be too short and one will find it undetectable. Therefore, we don't observe wave properties in macroscopic objects.

4 0

3 years ago

An image of the moon is focused onto a screen using a converging lens of focal length f= 34.3 cm. The diameter of the moon is 3.

Rashid [163]

Answer:

The diameter of the moon's image is 0.31 cm.

Explanation:

Given that,

Focal length = 34.3 cm

Diameter of the moon $d=3.48\times10^{6}\ m$

Mean distance from the earth $d=3.85\times10^{8}\ m$

At that distance the object is assumes to be at infinity. hence the image will be formed at a distance equal to focal length

So, the image distance is 34.3 cm.

We need to calculate the diameter of the moon's image

Using formula of magnification

$m= \dfrac{image\ distance}{object\ distance}=\dfrac{height\ of\ image}{height\ of\ object}$

$\dfrac{0.343}{3.85\times10^{8}}=\dfrac{h'}{3.48\times10^{6}}$

$h'=\dfrac{0.343\times3.48\times10^{6}}{3.85\times10^{8}}$

$h'=0.0031\ m= 0.31\ cm$

Hence, The diameter of the moon's image is 0.31 cm.

7 0

3 years ago

PLS HELP THIS IS DUE IN 10 MINUTES Describe at least 3 uses of ultraviolet radiation and discuss whether the benefits outwheigh

aliina [53]

Answer:

Three uses that ultraviolet radiation is used for is for cleaning tools like for doctors or dentists, suntanning, and photo therapy. This can be okay and worth the risk if used carefully and with protection. Otherwise, it can cause cancer or blindness

Explanation:

8 0

3 years ago