3 years ago

Circular motion occurs on earth true or false

Physics

2 answers:

Bingel [31]3 years ago

8 0

Circular Motion does occur on earth, so yes, true

tamaranim1 [39]3 years ago

5 0

Answer:

True

Explanation:

on apex

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You run a race with your friend. At first you each have the same kinetic energy, but then you find that she is beating you. When

Blizzard [7]

Answer:

52.49 Kg

Explanation:

Let m1 and v1 denote your mass and velocity respectively

Let m2 and v2 denote your friends mass and velocity respectively

Kinetic energy is given by

$KE= 0.5mv^{2}$

Since your kinetic energies are the same hence

$0.5m1(v1)^{2}=0.5m2(v2)^{2}$

$m1(v1)^{2}=m2(v2)^{2}$ and making m2 the subject then

$m2=\frac { m1(v1)^{2}}{(v2)^{2}}$

Since v2 is v1+0.28v1=1.28v1

Substituting m1 for 86 Kg

$m2=\frac { 86 Kg(v1)^{2}}{(1.28v1)^{2}}= 52.49023\approx 52.49 Kg$

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3 years ago

Why is ice harder than liquid water?

yaroslaw [1]

Hello~

Ice is harder than liquid water because the molecules of ice are linked more tightly together than the molecules of liquid water.

Hope this helps!

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2 years ago

Noble gases, such as argon and neon, are known for being extremely non-reactive. Neon and argon are non-reactive because they A.

Greeley [361]

B. have eight electrons in their outer shell

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Instruments on board the trmm (tropical rainfall measuring mission) satellite show 3d images of very tall rain columns called __

Ket [755]

These columns are called hot towers

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2 years ago

A 1050 W carbon-dioxide laser emits light with a wavelength of 10μm into a 3.0-mm-diameter laser beam. What force does the laser

avanturin [10]

The force exerted by the laser beam on a completely absorbing target is $3.5 \times 10^{-6} \ N$ .

The given parameters;

power of the laser light, P = 1050 W
wavelength of the emitted light, λ = 10 μm

The speed of the emitted laser light is given as;

v = 3 x 10⁸ m/s

The force exerted by the laser beam on a completely absorbing target is calculated as follows;

P = Fv

$F = \frac{P}{v} \\\\F = \frac{1050}{3\times 10^8} \\\\F = 3.5 \times 10^{-6} \ N$

Thus, the force exerted by the laser beam on a completely absorbing target is $3.5 \times 10^{-6} \ N$ .

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2 years ago