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3 years ago

How to find weight in science

1 answer:

6 0

In physics the standard unit of weight is Newton, and the standard unit of mass is the kilogram. On Earth, a 1 kg object weighs 9.8 N, so to find the weight of an object in N simply multiply the mass by 9.8 N. Or, to find the mass in kg, divide the weight by 9.8 N.

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MA_775_DIABLO [31]

She should plot her <span>data where the y axis contains the absorbance values while the x-axis are the wavelengths. It should be that the dependent variable is always at the y-axis and the independent variable or the measurement that is manipulated is at the y-axis. Hope this helps.</span>

4 0

3 years ago

Read 2 more answers

Two blocks are arranged at the ends of a massless cord over a frictionless massless pulley as shown in the figure. Assume the sy

ANEK [815]

Answer:

The coefficient of friction is <u>0.242.</u>

Explanation:

Given

Mass on the table is, $m_1 = 4.1$ kg

Hanging mass is, $m_2 = 2.7$ kg

Displacement of the masses is, $s = 0.355$ m

Initial velocity of the masses is, $u=0$ m/s

Final velocity of the masses is, $v = 1.32$ m/s

Acceleration by gravity is $g = 9.8$ m/s².

The acceleration of the system is calculated using equation of motion and is given as:

$a=\frac{v^2-u^2}{2s}\\a=\frac{1.32^2-0}{2\times 0.355}=2.46\ m/s^2$

Therefore, $a = 2.46$ m/s²

Applying Newton's second law on the hanging mass, we get:

$m_2\times g-T = m_2\times a\\T = m_2\times (g - a)\\T=2.7\times(9.8 - 2.46)\\T = 19.82\ N$

Now, applying Newton's second law on the mass on table, we get:

$T - F_f = m_1\times a\\F_f =T - m_1\times a\\F_f = 19.82 -4.1\times 2.46\\F_f = 9.73\ N$

The normal force of the table on the mass is given as:

$N=m_1\times g=4.1\times 9.8=40.18\ N$

The coefficient of friction is the ratio of the frictional force and the normal force and is given as:

$\mu=\frac{F_f}{N}=\frac{9.73}{40.18}=0.242$

Therefore, the coefficient of friction between the mass on the table and the table is 0.242.

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4 years ago

Please help.

Vlada [557]

Answer:

I think it is behavioral

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3 years ago

How does a metamorphic rock become an igneous rock?

Oksana_A [137]

Answer:

If the newly formed metamorphic rock continues to heat, it can eventually melt and become molten (magma). When the molten rock cools it forms an igneous rock. Metamorphic rocks can form from either sedimentary or igneous rocks.

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3 years ago

Which of these has kinetic energy

Sholpan [36]

The correct answer is B) A waterfall. Hope this helps.

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3 years ago