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3 years ago

6

If the diameter of the black marble is 3.0 cm, and by using the formula for volume, what is a good approximation of its volume?

Record to the ones place.

1 answer:

Novay_Z [31]3 years ago

6 0

Answer: 14 centimeters cubed

Explanation:

Using the equation V=4/3*3.14*radius cubed

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What is the acceleration of a cabinet of mass 45 kilograms if Jake and Ted push it by applying horizontal force of 25 newtons an

sladkih [1.3K]

Answer:

$a=0.96\ m/s^2$

Explanation:

Given that,

Mass of cabinet, m = 45 kg

Two horizontal force of 25 newtons and 18 newtons respectively in the same direction.

When the forces are acting in same direction, the net force is equal to the sum of forces i.e.

F = 25 N + 18 N = 43 N

Let a is the aceleration of the cabinet

So,

F = ma

$a=\dfrac{F}{m}\\\\a=\dfrac{43}{45}\\\\a=0.96\ m/s^2$

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3 years ago

What type of meter is connected in

madreJ [45]

Answer / Explanation:

B

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1 year ago

In a Young's double-slit experiment, a set of parallel slits with a separation of 0.142 mm is illuminated by light having a wave

Alexandra [31]

Answer:

$1.152\ \mu m$

$1.44\ \mu m$

Explanation:

d = Gap between slits = 0.142 mm

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m = Order = 2

Difference in path length is given by

$\delta=dsin\theta=m\lambda\\\Rightarrow \delta=2\times 576\times 10^{-9}\\\Rightarrow \delta=0.000001152\ m\\\Rightarrow \delta=1.152\times 10^{-6}\ m=1.152\ \mu m$

The difference in path lengths is $1.152\ \mu m$

For dark fringe the difference in path length is given by

$\delta=(m+\dfrac{1}{2})\lambda\\\Rightarrow \delta=(2+\dfrac{1}{2})\times 576\times 10^{-9}\\\Rightarrow \delta=0.00000144\ m=1.44\ \mu m$

The difference in path length is $1.44\ \mu m$

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3 years ago

2. Ms. Evelyn lined up her students at recess on the soccer field. She told each student to kick a soccer ball as hard as they c

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Answer

A. Yes, because they did several tests with the soccer balls and recorded their observations. B. Yes, because every student kicked

Explanation:

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2 years ago

Joe follows the procedure below to make a compass.

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The answer would be C.

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3 years ago

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