4 years ago

How much kinetic energy does Bryan have?

Physics

1 answer:

denpristay [2]4 years ago

6 0

Bryan? NEED INFO, GIVE ME MOOOOOAR

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Anyone tell me what is the physics

Katyanochek1 [597]

Answer:

physic is branch of science in which math is its brother and will deal with the equation,law and evidence of natural phenomenon.

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3 years ago

A car speeds up from 3 m/s to 10 m/s in 8 s. How far does the car travel while doing this? 2. A

yarga [219]

Initial velocity=u=3m/s

Final velocity=v=10m/s

Time=t=8s

$\boxed{\sf Acceleration=\dfrac{v-u}{t}}$

$\\ \sf\longmapsto Acceleration=\dfrac{10-3}{8}$

$\\ \sf\longmapsto Acceleration=\dfrac{7}{8}$

$\\ \sf\longmapsto Acceleration=0.8m/s^2$

Distance =s

Using second equation of motion

$\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2$

$\\ \sf\longmapsto s=3(8)+\dfrac{1}{2}(0.8)(8)^2$

$\\ \sf\longmapsto s=24+0.4(64)$

$\\ \sf\longmapsto s=24+25.6$

$\\ \sf\longmapsto s=49.6m$

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3 years ago

What does the principle of superposition help scientists determine?

dybincka [34]

Answer:

Explanation:

the exact and absolute age of a rock layer

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3 years ago

Read 2 more answers

The hydrocarbon used to manufacture foam plastics is called styrene. Analysis shows composition to be 92.25% C and 7.75% H. Anal

zhannawk [14.2K]

Answer:

molecular formula = $C_{8} H_{8}$

Explanation:

Given data

c = 92.25%

H = 7.75%

molar mass = 104 g/mol

to find out

the empirical and molecular formula for styrene

solution

we know that

styrene 1 g contain = 0.9225 g C and 0.0775 g H

C = 104 × 0.9225 g / 12 g/mol

C = 7.995 mol = approx 8 mol

and

H = 104 × 0.0775 g / 1 g/mol

H = 8.06 mol = approx 8 mol

so we say that 1 mole of styrene have 8 mole of C and H

molecular formula = $C_{8} H_{8}$

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4 years ago

The acceleration due to gravity is lower on the Moon than on Earth. Which one of the following statements is true about the mass

VashaNatasha [74]

Answer:

Mass is the same, weight is less.

Explanation:

We know the following equation

W = mg

where m is the mass of the astronaut which is constant and W is the weight. As g (the acceleration due to gravity) is a variable which it is directly proportional to the W, if g is lower on the Moon than on Earth, then W is lower on the Moon than on Earth.

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4 years ago