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Svetradugi [14.3K]
3 years ago
9

3. Bond energy is the energy

Mathematics
1 answer:
11111nata11111 [884]3 years ago
6 0
The answer is C
Have a nice day <3
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During a figure skating routine, Jackie and Peter skate apart with an angle of 15° between them. Jackie skates for 5 meters and
Fantom [35]

Answer:

Ans = 2.53m

Step-by-step explanation:

It is a simple law of Cosine, on a right-angle triangle draw the length as 5 and the base as 7 the angle is 15°. Find x.

So x = 5² +7² - 2 (5) (7)cos 15°

Solve this and you get your answer.

Hope this was helpful :)

7 0
3 years ago
The sum of two numbers is 17<br> ​The difference of those same two numbers is 3
taurus [48]

The two numbers are 10 and 7.

10+7=17 and 10-7=3

8 0
3 years ago
Read 2 more answers
A recipe calls for 3 1/4 cups of flour, evenly divided into two different bowls. How much flour should be put into each bowl?
mr_godi [17]

3 1/4 ÷ 2 = 1.625 or 1 5/8 cups of flour in each bowl.

6 0
3 years ago
A three inch diameter pulley on an electric motor that runs at 1800
Bezzdna [24]

Answer:

a) 3 inch pulley: 11,309.7 radians/min

6) 6 inch pulley: 5654.7 radians/min

b) 900 RPM (revolutions per minute)

Step-by-step explanation:

Hi!

When a pulley wirh radius R rotantes an angle θ, the arc length travelled by a point on its rim is Rθ.  Then the tangential speed V is related to angular speed  ω as:

V=R\omega

When you connect two pulleys with a belt, if the belt doesn't slip, each point of the belt has the same speed as each point in the rim of both pulleys: Then, both pulleys have the same tangential speed:

\omega_1 R_1 = \omega_2 R_2\\

\omega_2 = \omega_1 \frac{R_1}{R_2} =1800RPM* \frac{3}{6}= 900RPM

We need to convert RPM to radias per minute. One revolution is 2π radians, then:

\omega_1 = 1800*2\pi \frac{radians}{min} = 11,309.7\frac{radians}{min}

\omega_2 = 5654.7 \frac{radians}{min}

The saw rotates with the same angular speed as the 6 inch pulley: 900RPM

3 0
3 years ago
1/4x+4is greater than or equal to 3
goldfiish [28.3K]

1/4x+4is greater than or equal to 3


1/4x=>-4+3


1/4x=>-1


(4)1/4x=>-1(4)


X=> -4

5 0
3 years ago
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