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Maslowich
2 years ago
9

24) Which of the following equations is correctly balanced? HELP ME ASAP PLEASE

Physics
2 answers:
hammer [34]2 years ago
7 0

Answer:

the correct answer is option C

STatiana [176]2 years ago
6 0

Answer:

The correct option is c

Explanation:

lets see the reactants and products step by step

Reactants:

<em>Fe</em><em>=</em><em>3</em>

<em>O</em><em>=</em><em>4</em>

<em>H</em><em>=</em><em>2</em>

Products:

<em>Fe</em><em>=</em><em>3</em>

<em>O</em><em>=</em><em>4</em>

<em>H</em><em>=</em><em>2</em>

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A 30kg boxed is pushed with a force of 20N. What is the boxes acceleration. Please show work
kozerog [31]

Answer:

<h3>The answer is 0.67 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{20}{30}  =  \frac{2}{3}  \\  = 0.6666666...

We have the final answer as

<h3>0.67 m/s²</h3>

Hope this helps you

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3 years ago
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A crate is pushed up each of the two ramps shown in the diagram below. Based on the concept that simple machines make work easie
Naddik [55]

Answer:

ramp b requires less force than ramp a

Explanation:

7 0
3 years ago
A skydiver of mass 80kg jumps from a slow moving aircraft and reach a terminal speed of 50 m/s. What's her acceleration when her
miskamm [114]

Answer:

a = g = 9.81[m/s^2]

Explanation:

This problem can be solve using the second law of Newton.

We know that the forces acting over the skydiver are only his weight, and it is equal to the product of the mass by the acceleration.

m*g = m*a

where:

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3 years ago
A bat can detect small objects such as an insect whose size is approximately equal to the wavelength of the sound the bat makes.
slamgirl [31]

Answer:

size of insect = wavelength = 16.1 mm

Explanation:

Since the bat can detect the size of small insects which are of size equal to the wavelength of sound in air

So here we can say that the wavelength of sound is the ratio of speed of sound and its frequency

here we know that

speed of sound in air is 536 m/s

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so here we can say

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