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2 years ago

11

What is formed when 2 or more elements combine chemically

1 answer:

ira [324]2 years ago

6 0

Answer:

compound

Explanation:

a substance made from two or more different elements that have been chemically joined. Examples of compounds include water (H2O), which is made from the elements hydrogen and oxygen, and table salt (NaCl), which is made from the elements sodium and chloride.

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If the net force acting on an object is not zero, then the object is definitely

balu736 [363]

Answer:

C

Explanation:

Since the net force is changing, and not the speed, it is C

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3 years ago

A ball with 5j of GPE falls to the ground. What is the KE of the ball at the moment it hits the ground

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3 years ago

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3 years ago

A machine that uses 200 w of power moves an object a distance of 15 m in 25 sec. Find

Sergeeva-Olga [200]

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3 years ago

Find the first three harmonics of a string of linear mass density 2.00 g/m and length 0.600 m when the tension in it is 50.0 n.

blsea [12.9K]

As we know that Nth harmonic of the string is given by

$f = \frac{N}{2L}\sqrt{\frac{T}{m/L}}$

now here we will have

$m/L = mass density = 2 g/m$

$m/L = 0.002 kg/m$

$Length = L = 0.600 m$

$Tension = T = 50.0 N$

now from above formula we have

$f = \frac{N}{2(0.600)}\sqrt{\frac{50.0}{0.002}}$

$f = 131.8N$

now for first harmonic N = 1

$f_1 = 131.8 Hz$

for second harmonic N = 2

$f_2 = 263.5 Hz$

for third harmonic N = 3

$f_3 = 395.3 Hz$

8 0

4 years ago