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4 years ago

What happens when an object is dropped?

1 answer:

katrin2010 [14]4 years ago

3 0

When an object is dropped, tossed, or kicked, as long as it is not laying on the ground, it accelerates downward, because of the force of gravity acting on it.

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What will terminal velocity look like on a velocity v. time graph?

mrs_skeptik [129]

The horizontal is s or displacement
The vertical is t or time

3 0

3 years ago

A surface receiving sound is moved from its original position to a position three times farther away from the source of the soun

vazorg [7]

Answer:

c. nine times as low.

Explanation:

Sound intensity is defined as the acoustic power transferred by a sound wave per unit of normal area to the direction of propagation:

$I\propto \frac{1}{A}$

Since the sound wave has a spherical wavefront of radius r, then the area is given by:

$A=4\pi r^2$

Here r is the distance from the source of the sound. Thus sound intensity decreases as:

$I\propto \frac{1}{4\pi r^2}\\\\I'\propto \frac{1}{4\pi r'^2}\\\\I'\propto \frac{1}{4\pi (3r)^2}\\\\I'\propto \frac{1}{9} \frac{1}{4\pi r^2}\\\\I'\propto \frac{1}{9} I$

6 0

4 years ago

When you push a child on a swing, you are doing work on the child because _____.

max2010maxim [7]

ur answer is A or also known as

When you push a child on a swing, you are doing work on the child because you are pushing against the force of gravity

hope this helps :)

8 0

4 years ago

Read 2 more answers

9) If a wave has a speed of 362 m/s and a period of 4.17 s, what is its wavelength?

kakasveta [241]

Answer:

Option B (1.51 m)

Explanation:

U 2 can help me by marking as brainliest........

5 0

2 years ago

Read 2 more answers

Why is a flower not a good blackbody radiator?

artcher [175]

Answer:

The answer is O C. A flower absorbs most of the light that hits it.

Explanation:

blackbody radiator is defined as an object that absorbs all electromagnetic radiation that falls on it at all frequencies over all angles of incidence.
No radiation is reflected from such an object. According to thermodynamic arguments embodied in Kirchhoff's law, a good absorber is also a good emitter.

3 0

2 years ago