3 years ago

Which sentence best describes a role of gravity in the formation of the

Physics

1 answer:

enyata [817]3 years ago

8 0

Answer:

I think it's option D

Explanation:

I think it's option D but not so sure

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If an object moving at 5 m/s accelerates for 30 seconds at a rate of 2

klasskru [66]

Answer:

V=u + at

V= final velocity

U= Initial velocity

a= acceleration

t= time taken

V= 5 + 30*2

V=5+60

V=65m/s

Explanation:

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3 years ago

When the driver is disturbed by emotions this manifest itself by decreased risk behavior true or false?

Alina [70]

I believe your answer is false

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3 years ago

What is the weight of an object with a force of 35 pounds ?

Reika [66]

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Wouldn't it be 17.5. Force doubles in weight.

Explanation:

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List of energy changes when hydroelectricity city is made

ryzh [129]

Answer:

A turbine and generator produce the electricity

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3 years ago

A mass m = 3.9 kg hangs from a massless string wrapped around a uniform cylinder with mass Mp = 10.53 and radius R= 0.96 m. The

luda_lava [24]

Answer:

the rotational inertia of the cylinder = 4.85 kgm²

the mass moved 7.942 m/s

Explanation:

Formula for calculating Inertia can be expressed as:

$I =\frac{1}{2}mR^2$

For calculating the rotational inertia of the cylinder ; we have;

$I = \frac{1}{2}m_pR^2$

$I = \frac{1}{2}*10.53*(0.96)^2$

$I=5.265*(0.96)^2$

$I=4.852224$

I ≅ 4.85 kgm²

mg - T ma and RT = I ∝

T = $\frac{Ia}{R^2}$

$a = \frac{g}{1+\frac{I}{mR^2}}$

$a = \frac{9.8}{1+\frac{4.85}{3.9*(0.96)^2}}$

a = 4.1713 m/s²

Using the equation of motion

$v^2 = u^2+2as \\ \\ v^2 = 2as \\ \\ v = \sqrt{2*a*s} \\ \\ v= \sqrt{2*4.1713*7.56} \\ \\ v = 7.942 \ m/s$

3 0

3 years ago

Read 2 more answers