3 years ago

PLAESE ANSWER FAST!!!!! MAKE SURE IT"S RIGHT

Physics

1 answer:

pychu [463]3 years ago

4 0

(if you have Q1: Carbon is found in: living animals and plants, oceans, rocks, atmosphere, and fossil fuels)

Q2: Humans are burning carbon and putting it into the atmosphere.

Q3: True

Q4: While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.

(and if you have Q5: In the last 250 years, the amount of carbon in the air has increased by 40 percent.)

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A regulation basketball has a 15 cm diameter and may be appropriated as a thin spherical shell.

REY [17]

Solution :

From the given data,

For the spherical shell is $\frac{k^2}{R^2}= \frac{2}{3}$

where x is the radius of gyration and the acceleration of a rolling body on an inclined plane = a

Therefore,

$a =\frac{g \sin \theta}{1+ \frac{k^2}{R^2}}$

$= \frac{g \sin \theta}{1 +\frac{2}{3}}$

$= \frac{3}{5} g \sin \theta$

= 0.6 x 9.81 x sin ( 29.7)

$= 2.913 \ m/s^2$

$h = \frac{1}{2} a(\Delta t)^2$

$\Delta t = \sqrt{\frac{2h}{a}}$

$\Delta t = \sqrt{\frac{2 \times 2.9}{2.913}}$

Δt = 1.411 s

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2 years ago

Every year, new records in track and field events are recorded. Let's take a historic look back at some exciting races.

masya89 [10]

V=r/t
Speed equals displacement over the time

V=100/9.92=10.08ms^-1

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3 years ago

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Why is static electricity worse in winter?

Ratling [72]

Because static electricity build up in our homes because we have the heaters on which suck moisture out of the air.

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3 years ago

How can an object overcome static friction?

larisa86 [58]

Answer:

Applying enough force in one direction to move the object, making kinetic energy.

Explanation:

Simpleness

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3 years ago

Help me with this review question please.

QveST [7]

Answer:

K E=( mv²)/2

=(60×3.5²)/2

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3 years ago