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cestrela7 [59]
3 years ago
11

The chemical properties

Physics
1 answer:
BARSIC [14]3 years ago
7 0
Chemical Properties include : change in smell, change in temperature, light is formed, new substance, and change in color.
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Please help on this one somebody? :)
ahrayia [7]

ans D. Substance B has a greater latent heat of vaporization than substance A.

8 0
3 years ago
How many dB greater than 4 Watts is 64 Watts?
Novay_Z [31]

Answer:

64 Watts is 12dB greater than 4 Watts

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3 years ago
If you increase the resistance in a series circuit, ________________
GrogVix [38]
B) the current will decrease 

6 0
3 years ago
F an object has a mass of 200 kg and a weight of 1000 N, what is g?
jeka94

Answer:

g = 5 m/s square

Explanation:

Weight(W), Mass(m), Gravity(g)

W = mg

1,000N = 200g

g = 1000/200

g = 5 m/s square

7 0
3 years ago
Suppose the coefficient of static friction between a quarter and the back wall of a rocket car is 0.383. At what minimum rate wo
djverab [1.8K]

Answer:

25.59 m/s²

Explanation:

Using the formula for  the force of static friction:

f_s = \mu_s N --- (1)

where;

f_s = static friction force

\mu_s = coefficient of static friction

N = normal force

Also, recall that:

F = mass × acceleration

Similarly, N = mg

here, due to min. acceleration of the car;

N = ma_{min}

From equation (1)

f_s = \mu_s ma_{min}

However, there is a need to balance the frictional force by using the force due to the car's acceleration between the quarter and the wall of the rocket.

Thus,

F = f_s

mg = \mu_s ma_{min}

a_{min} = \dfrac{mg }{ \mu_s m}

a_{min} = \dfrac{g }{ \mu_s }

where;

\mu_s = 0.383 and g = 9.8 m/s²

a_{min} = \dfrac{9.8 \ m/s^2 }{0.383 }

\mathbf{a_{min}= 25.59 \ m/s^2}

3 0
3 years ago
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