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3 years ago

Can we fly if we were falling for two days

Physics

2 answers:

snow_lady [41]3 years ago

8 0

It is scientifically impossible to fall for 2 days unless a device to make you fall slower is used

nevsk [136]3 years ago

4 0

...................no

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Susie rides down and to the right on a slide for a total displacement of -3m at an angle of 45 degrees above the ground. What wa

Svetlanka [38]

Susie's vertical displacement is 2.1 m

Explanation:

In order to solve this problem, we have to resolve the displacement vector along the vertical direction.

The vertical component of a vector is given by:

$v_y = v sin \theta$

where

v is the magnitude of the vector

$\theta$ is the angle between the direction of the vector and the horizontal

Therefore, the vertical component of the displacement in this problem is given by

$d_y = d sin \theta$

where

d = 3 m is the magnitude of the displacement

$\theta=45^{\circ}$ is the angle between the displacement and the horizontal

Substituting, we find

$d_y = (3)(sin 45^{\circ})=2.1 m$

Learn more about vector components:

brainly.com/question/2678571

#LearnwithBrainly

6 0

4 years ago

Two train whistles, and , each have a frequency of 392 Hz. is stationary and is moving toward the right (away from ) at a speed

trasher [3.6K]

Answer:

Part a)

f = 371.1 Hz

Part b)

f = 417.7 Hz

Part c)

beat frequency = 46.6 Hz

Explanation:

Part a)

Due to doppler's Effect the frequency of the sound heard by the train which is moving away from the observer is given as

$f_1 = f_0\frac{v + v_o}{v + v_s}$

$f_1 = 392(\frac{340 + 15}{340 + 35})$

$f_1 = 371.1 Hz$

Part b)

Now from the second train which is approaching the person we can say

$f_2 = f_0\frac{v - v_o}{v - v_s}$

$f_2 = 392(\frac{340 - 15}{340 - 35})$

$f_2 = 417.7 Hz$

Part c)

As we know that beat frequency is the difference in the frequency from two sources

$f_b = f_2 - f_1$

$f_b = 417.7 - 371.1 = 46.6 Hz$

8 0

3 years ago

Which hormone is released in response to daily variations in light and tends to rise as night falls, peaks at midnight, and fall

hram777 [196]

Melatonin is a hormone being produced by small gland in the brain called pineal gland that helps control sleep and wake cycles. It is also called the sleep hormone because it gives signal that it’s time to sleep. People also used this hormone to adjust the body’s internal clock. It is the hormone that released in response to exposure to sunlight. When the sun sets and night falls, the pineal is activated and begins to vigorously produce melatonin. The amount of melatonin tends to rise as night falls, peaks at midnight, and falls again as the sun rises. It means that it produced more when darker and when the lighter it is; the less melatonin is produced.

5 0

4 years ago

A light microscope allows for more magnification than electron microscope because it uses a beam of visible light. true false

Igoryamba

False because light microscopes have low resolve and magnification.

4 0

3 years ago

Which statement or question is a good hypothesis

Kisachek [45]

I’m pretty sure it’s A)

4 0

3 years ago