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3 years ago

CAN YOU EXPLAIN?

Physics

1 answer:

Anni [7]3 years ago

4 0

<h2>Answer:</h2><h2>this this is an image of this is helpful to you please thank you</h2>

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What is the volume of an object that has a density of 65g/cm3 and a mass of 130g.

lora16 [44]

Density ρ is mass m per unit volume v, or

ρ = m / v

Solving for v gives

v = m / ρ

So the given object has a volume of

v = (130 g) / (65 g/cm³) = 2 cm³

5 0

3 years ago

Mrs. Waid drives her car up Route 8 at 80mph. If her car weighs 2500 lbs,

Anvisha [2.4K]

1.358 J is the kinetic energy of the car driven by Mrs. Waid.

Explanation:

Given data:

Velocity at which Mrs. Waid drives her car = 80 mph

In order to convert mph (meter per hour) into mps (meter per second),

$\frac{80}{3600}=0.0222 \mathrm{m} / \mathrm{s}$

Car weighs 2500 lbs, means mass of the car, m = 2500 lbs

I kilo gram = 2.20462 pound

Therefore, 1 pound (lb)= 0.45359237 kilograms (kg).

To converting pounds into kilogram,

$\frac{2500}{0.45359237}=5511.55 \mathrm{kg}$

As we know, the kinetic energy can be defined as directly proportionate to the object’s mass (m) and square of its velocity (v). The expression can be given as below,

$\text { kinetic energy }(K . E)=\frac{1}{2} \times m \times v^{2}$

By substituting the given values, we get

$\text { kinetic energy }(K . E)=\frac{1}{2} \times 5511.55 \times 0.0222^{2}$

$\text { kinetic energy }(K . E)=\frac{1}{2} \times 5511.55 \times 0.00049$

$kinetic energy (K . E)=1.358 joule$

3 0

4 years ago

What an object at rest stays at rest and an object in motion with the same speed and in the same direction unless acted upon by

GalinKa [24]

Answer:

True.

Explanation:

Newton's First Law of Motion states that every object continues in it's state of rest or of uniform motion in a straight line unless acted upon by an external force.

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3 years ago

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What is the y component of a vector that is 125 m at 312 degrees?

kondaur [170]

Explanation:

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3 years ago

Six parallel-plate capacitors of identical plate separation have different plate areas a, different capacitances c, and differen

lina2011 [118]

Seis condensadores de placas paralelas de separación de placas idénticas tienen diferentes áreas de placa a, diferentes capacitancias c, y dieléctricos diferentes que llenan el espacio entre las placas. A continuación se muestra un diagrama genérico de lo que cada uno de estos condensadores podría parecer

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3 years ago