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VLD [36.1K]
3 years ago
14

A projectile is fired with an initial speed of 51.2 m/s at an angle of 44.5 degrees above the horizontal on a long flat firing r

ange. Determine the following: a. The maximum height reached by the projectile. b. The total time in the air. c. The total horizontal distance covered (that is, the range)
Physics
1 answer:
irinina [24]3 years ago
3 0
Use the projectile motion equations

H = v^2 x sin^2(θ) ÷ 2g

t = 2 x v x sinθ ÷ g

R = v^2 x sin2θ ÷ g
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By what factor does the sound intensity increase if the sound intensity level increases from 60 db to 61 db?
tiny-mole [99]

Answer:

\frac{I_{2}}{I_{1}} = 10^{0.1}

Explanation:

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Now,

\beta_{2} - \beta_{1} = 10 log\frac{I_{2} }{I_{o}} -  10 log\frac{I_{1} }{I_{o}}\\62-60= 10log(\frac{\frac{I_{2} }{I_{o} } }{\frac{I_{1} }{I_{o} } } )\\1=10log(\frac{I_{2} }{I_{1} } )\\\\\frac{I_{2} }{I_{1} }=10^{0.1}

6 0
3 years ago
Porfavor alguem precisso já disstoo
s344n2d4d5 [400]

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3 0
3 years ago
There are three long parallel wires arranged so that, in cross-section, they occupy the points of an equilateral triangle. Is th
Harrizon [31]

Answer:

Yes, there is such a way.

Explanation:

If currents flow in the same direction in two or more long parallel wires, there will be an attractive force between the wires. If the current flows in different directions, there will be a repulsive force between the wires. In this case, these three parallel wires, can be be made to carry current in the same direction, creating an attractive force between all three wires.

Note that it is not possible to have at the least one of them carry current in the opposite direction and still have an attractive current between them.

8 0
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What is Open Space in Volleyball?
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open space is important because it allows the team to determine the position of the body in relation to the court, ball, and net

Explanation:

:D hope this helps

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an astronaut in the satellite releases a pencil out of the satellite in space. will the pencil fall on the earth?​
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