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3 years ago

Is wooden blocks transparent,translucent or opaque

Physics

2 answers:

lesya692 [45]3 years ago

8 0

Answer:

opaque

Explanation:

Materials such as wood, stone, and metals are opaque to visible light.

Zarrin [17]3 years ago

4 0

Materials such as wood, stone, and metals are opaque to visible light.

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Anna learned that every magnet has a north and a south end called poles. One day, while she is playing with magnets she notices

My name is Ann [436]

Just from that one observation, choice-B
would be a reasonable conclusion.

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3 years ago

Read 2 more answers

An electromagnetic flowmeter is useful when it is desirable not to interrupt the system in which the fluid is flowing (e.g. for

AURORKA [14]

Answer:

2 m/s

Explanation:

The electromagnetic flow-metre work on the principle of electromagnetic induction. The induced voltage is given as

$E = Blv$

where $E$ is the induced voltage = 2.88 mV = 2.88 x 10^-3 V

$l$ is the distance between the electrodes in this field which is equivalent to the diameter of the tube = 1.2 cm = 1.2 x 10^-2 m

$v$ is the velocity of the fluid through the field = ?

$B$ is the magnetic field = 0.120 T

substituting, we have

2.88 x 10^-3 = 0.120 x 1.2 x 10^-2 x $v$

2.88 x 10^-3 = 1.44 x 10^-3 x $v$

$v$ = 2.88/1.44 = 2 m/s

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3 years ago

Lighting a match results in light and heat. Since energy was not created by the match, what transformation took place?

Yuki888 [10]

Chemical energy stored in the compounds caked on the head of the match, and later the
chemical energy stored in the wood, was released in the form of heat and light when the
chemical compounds got hot enough.

3 0

3 years ago

What is difference between non uniform and uniform circular motion?

statuscvo [17]

Answer:

The object in a uniform motion covers same distances in an equal time period. Objects in a non-uniform motion cover dissimilar distances in an equal time period.

Explanation:

The speed of the object traveling in uniform motion is constant, the actual speed and the average speed of the moving body is same.

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3 years ago

A ferry approaches shore, moving north with a speed of 6.2 m/s relative to the dock. A person on the ferry walks from one side o

jasenka [17]

Speed of Ferry is towards North with magnitude 6.2 m/s

Here if we assume that North direction is along Y axis and East is along X axis then we can say

$\vec v_f = 6.2 \hat j$