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3 years ago

15

A bag of sugar weights 20 N on the earths surface. If you double the distance from the center of the earth, the bag now weighs w

hat

1 answer:

elena-s [515]3 years ago

4 0

I have no idea that’s a hard one

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Iron + Hydrochloric acid --> ?

marusya05 [52]

<h3>Iron - Fe</h3>

<h3>Hydrochloric Acid- HCl</h3>

<h2><u>Solution</u></h2>

$\bold{Fe +2HCl \rightarrow FeCl _{}{ \tiny2} + H{ \tiny{2}}}$

$\therefore \bold{\fbox{{Balanced}}}$

Iron + Hydrochloric Acid $\rightarrow$ Ferrous Chloride + Hydrogen

<h2>Hope This Helps You ❤️</h2>

8 0

3 years ago

Read 2 more answers

If I turn on a light in a spaceship traveling 1C BACKWARDS, what happens to the photons? Speed -0-, or 1C in opposite direction?

Advocard [28]

If the spaceship's Physicist happens to be hanging out of one side
of the ship, and he measures the speed of the photons as they pass
him and leave the ship, he'll see them passing him at 'c' ... the speed
of light.

When those photons pass somebody who happens to be in their
path, and he decides to measure their speed, he'll see them move
past him at 'c' ... the speed of light.

It doesn't matter whether the observer who measures them is
moving, or at what speed.

And it doesn't matter what source the photons come from, or
whether the source is moving, or at what speed.

And it doesn't matter what the photons' wavelength/frequency is ...
anything from radio to gamma rays.

The photons pass everybody at 'c' ... the speed of light.

Yes, I hear you. That can't be true. It's crazy.
Maybe it's crazy, but it's true.

5 0

3 years ago

A high speed train travels with an average speed of 227 km/h. The train travels for 2 h.how far does the train travel in meters?

Sedbober [7]

2 x 227 km/h = 454 m

8 0

3 years ago

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The equation for photosynthesis is 6H2O (water) + 6CO2 (carbon dioxide) + Light Energy → C6H12O6 (glucose) + 6O2 (oxygen). When

aleksklad [387]

Answer:

b

Explanation:

bc

8 0

3 years ago

An ideal incompressible fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twice its original radius, what is the

grandymaker [24]

Answer:

d) 3 m/s

Explanation:

As we know by equation of continuity

$A_1v_1 = A_2v_2$

here we have

$A_1 = \pi r^2$

$A_2 = \pi (2r)^2$

$A_2 = 4\pi r^2$

now from above equation we have

$\pi r^2 v_1 = 4\pi r^2 v_2$

$v_2 = \frac{v_1}{4}$

here we have

$v_1 = 12 m/s$

$v_2 = 3 m/s$

5 0

3 years ago