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2 years ago

Convert 9.75 millimeters to centimeters.

Physics

2 answers:

Alex777 [14]2 years ago

4 0

0.975 is correct, to get the answer you divide the length value by 10.

zysi [14]2 years ago

4 0

Answer:

.975 cenimetters

Explanation:

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Change a speed of 72.4 miles per hour to its equivalent in meters per second.

4vir4ik [10]

Answer:

Speed in meter/sec will be 32.1777 m /sec

Explanation:

We have given speed = 72.4 miles per hour

We have to convert this speed in meter per second

We know that 1 miles = 1.6 km

So 72.4 miles = 72.4×1.6= 115.84 km

We also know that 1 km = 1000 m

So 115.84 km $=115.84\times 10^3m$

We know that 1 hour = 60×60 = 3600 sec

So $72.4miles/hour=\frac{72.4\times 1600m}{3600sec}=32.1777m/sec$

7 0

3 years ago

An asteroid is discovered in a nearly circular orbit around the Sun, with an orbital radius that is 3.570 times Earth's. What is

inysia [295]

Explanation:

Given:

$r_a = 3.570R_E$

$R_E = 1.499×10^{11}\:\text{m}$

$M_S = 1.989×10^{30}\:\text{kg}$

$G = 6.674×10^{-11}\:\text{N-m}^2\text{/kg}^2$

Let $m_s$ = mass of the asteroid and $r_a$ = orbital radius of the asteroid around the sun. The centripetal force $F_c$ is equal to the gravitational force $F_G:$

$F_c = F_G \Rightarrow m_a\dfrac{v_a^2}{r_a} = G\dfrac{m_aM_S}{r_a^2}$

$\dfrac{4\pi^2 r_a}{T^2} = G\dfrac{M_S}{r_a^2}$

where

$v = \dfrac{2\pi r_a}{T}$

with T = period of orbit. Rearranging the variables, we get

$T^2 = \dfrac{4\pi^2 r_a^3}{GM_S}$

Taking the square root,

$T = 2\pi \sqrt{\dfrac{r_a^3}{GM_S}}$

$\:\:\:\:=2\pi \sqrt{\dfrac{(3.57(1.499×10^{11}\:\text{m}))^3}{(6.674×10^{-11}\:\text{N-m}^2\text{/kg}^2)(1.989×10^{30}\:\text{kg})}}$

$\:\:\:\:= 2.13×10^8\:\text{s} = 6.75\:\text{years}$

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2 years ago

¿cuales son los motivos para hacer una carta formal?<br>es para hoy porfavor necesito su ayuda

galina1969 [7]

La carta motivos es un documento escrito dentro del formato epistolar, por el cual se expresan las razones por la cual un postulante solicita algo, por ejemplo: continuar con sus estudios de posgrados en una universidad fuera de su ciudad natal o para dar una razón por la cual se encuentra calificado para un puesto de trabajo.

Nomas ponlo en tus palabras

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2 years ago

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Answer:

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3 years ago

3. Tyrone wants to determine how fast a bowling ball travels when it is bowled. He uses a stopwatch to

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3 years ago