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3 years ago

16. Calculate the mass in kg of an object that is being accelerated 12 m/s with a force of 654 N.

Physics

2 answers:

Andrej [43]3 years ago

6 0

Mass=force/acceleration

Or,mass=654/12

Or,mass=54.5kg

So,the mass is 54.5kg

Cloud [144]3 years ago

3 0

(654m/s ) / (12m/s) = 54.5 kg.

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Yuri [45]

The total power emitted by an object via radiation is:
$P=A\epsilon \sigma T^4$
where:
A is the surface of the object (in our problem, $A=1.25 m^2$
$\epsilon$ is the emissivity of the object (in our problem, $\epsilon=1$ )
$\sigma = 5.67 \cdot 10^{-8} W/(m^2 K^4)$ is the Stefan-Boltzmann constant
T is the absolute temperature of the object, which in our case is $T=100^{\circ} C=373 K$

Substituting these values, we find the power emitted by radiation:
$P=(1.25 m^2)(1.0)(5.67 \cdot 10^{-8}W/(m^2K^4)})(373 K)^4=1371 W = 1.4 kW$
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3 years ago

Consider a block on a spring oscillating on a frictionless surface. The amplitude of the oscillation is 11 cm, and the speed of

IRISSAK [1]

Answer:

The angular frequency of the block is ω = 5.64 rad/s

Explanation:

The speed of the block v = rω where r = amplitude of the oscillation and ω = angular frequency of the oscillation.

Now ω = v/r since v = speed of the block = 62 cm/s and r = the amplitude of the oscillation = 11 cm.

The angular frequency of the oscillation ω is

ω = v/r

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ω = 5.64 rad/s

So, the angular frequency of the block is ω = 5.64 rad/s

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4 years ago

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Yuri [45]

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Explanation:

A pH scale is a scale for expressing the level of acidity or alkalinity of aqueous solutions.

This scale is called a pH or pOH scale. The pH is the common one.

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The scale ranges from 1 through 14.
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learn more:

acidity brainly.com/question/5121777

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