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2 years ago

A Projectile is fired with a velocity of 8m/s at and angle of 65 . what is the vertical component of the velocity ?

Physics

1 answer:

vladimir2022 [97]2 years ago

7 0

Explanation:

vᵧ = v sin θ

vᵧ = 8 m/s sin 65°

vᵧ = 7.25 m/s

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2 years ago

One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 5.87 × 10-3 m2

Grace [21]

Answer:

The amount of charge that flow through a point is $\Delta q = 0.126 \ C$

Explanation:

From the question we are told that

The number of turns is $N = 100$

The area is $A = 5.87 *10^{-3} m^2$

The total resistance is $R = 14.9 \ \Omega$

The magnetic field in first direction is $B_1 = 1.93 \ T$

The magnetic field in second direction is $B_2 = -1.93 \ T$

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substituting values

$\Delta B = 1.93 - [- 1.93]$

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The induced emf due to the change is mathematically evaluated as

$e = NA \frac{\Delta B }{\Delta t }$

This can also be mathematically represented as

$e = IR$

Where I can be mathematically represented as

$I = \frac{\Delta q }{\Delta t}$

$e = \frac{\Delta q}{\Delta t } R$

Now

$\frac{\Delta q}{\Delta t } R = NA \frac{\Delta B }{\Delta t }$

=> $\Delta q = \frac{N A (\Delta B)}{R}$

substituting values

$\Delta q = \frac{100 * 5.87 *10^{-3} (3.2}{14.9}$

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Answer:

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Explanation:

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3 years ago