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3 years ago

A suitable model for air could be b-b's moving rapidly around and colliding with each other.

Physics

2 answers:

solong [7]3 years ago

5 0

The answer to your qestion is true

Fed [463]3 years ago

5 0

the answer would be true

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Based on the daughter in figure 1 is mixture see a homogeneous or heterogeneous mixture explain

stiks02 [169]

<span>A homogeneous mixture would be something like a solution, where you can't see the different parts of the mixture. It's like how in salt water, you see one uniform substance (the water).
A heterogeneous mixture is the opposite; you can see the different parts that make it up. An example would be soil, where you can see rocks and leaves and the parts that make it up, etc</span>

8 0

3 years ago

Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a const

Dafna1 [17]

Answer:

$\frac{dA}{dt} = 188.5 m^2/s$

Explanation:

As we know that area of the circle at any instant of time is given as

$A = \pi r^2$

now in order to find the rate of change in area we will have

$\frac{dA}{dt} = 2\pi r\frac{dr}{dt}$

here we know that

rate of change of radius is given as

$\frac{dr}{dt}= 1 m/s$

radius of the circle is given as

$r = 30 m$

now we have

$\frac{dA}{dt} = 2\pi (30)(1)$

$\frac{dA}{dt} = 60\pi$

$\frac{dA}{dt} = 188.5 m^2/s$

8 0

4 years ago

How can a rocket be propelled forward in space where there is no air to push<br> against?

pychu [463]

Answer:

Explanation:

In space, rockets zoom around with no air to push against. ... When a rocket shoots fuel out one end, this propels the rocket forward — no air is required. NASA says this principle is easy to observe on Earth. If you stand on a skateboard and throw a bowling ball forward, that force will push you and the skateboard back.

3 0

3 years ago

The Celsius temperature scale is based on which of the following

saw5 [17]

The boiling and freezing point of water. You know this because at 0degrees water freezes and at 100 degrees water boils

6 0

3 years ago

Read 2 more answers

A flat loop of wire consisting of a single turn of cross-sectional area 7.80 cm2 is perpendicular to a magnetic field that incre

mihalych1998 [28]

Answer:

Explanation:

Area of crossection, A = 7.80 cm²

Initial magnetic field, B = 0.5 T

Final magnetic field, B' = 3.3 T

Time, t = 1 s

resistance of the coil, R = 1.2 ohm

The induced emf is given by

$e=\frac{d\phi}{dt}=A\frac{B' - B}{t}$

where, Ф is the rate of change of magnetic flux.

e = 7.80 x 10^-4 x (3.3 - 0.5) / 1

e = 2.184 mV

i = e/R

i = 2.184/1.2

i = 1.82 mA

4 0

3 years ago