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azamat
3 years ago
12

fighter jets can travel at speeds of 2,500 miles per hour. how far will a fighter jet travel in 30 seconds at that speed?

Physics
2 answers:
Harrizon [31]3 years ago
7 0

Explanation:

1 hr= 3600 sec

speed( miles/ sec)= 2500/3600

speed= 0.6944 miles/sec

speed=dis./time

0.6944= dis./30

dis.= 30 ×0.6944

dis.= 20.832 miles

Ksenya-84 [330]3 years ago
4 0

Answer:

75000 mph

Explanation:

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kykrilka [37]

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Explanation:

When an object of mass m is supplied with a certain amount of energy Q, its temperature increases according to the equation:

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m is the mass of the object

C_s is its specific heat capacity

\Delta T is the increase in temperature of the object

In this problem, we have

Q=300 cal \cdot 4.814 = 1444.2 J

m = 50 g

\Delta T = 20C-(-10C)=30^{\circ}C

Therefore, we can solve for C_s to find its specific heat capacity:

C_s = \frac{Q}{m\Delta T}=\frac{1444.2}{(50)(30)}=0.963 J/gC

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To start solving this exercise, we obtain the following data:

<h3><u>Data:</u></h3>
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We substitute the data in the formula: the <u>speed is equal to 4.6 m/s,</u> the <u>time is equal to 10 s</u>, which is left as follows:

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