2 years ago

How long will it take a projectile to hit the ground from a 400 m tall cliff when launched at 30 m/s horizontally?

1 answer:

4 0

<h2><u><em>about 88 seconds for the cannonball to reach its maximum height (ignoring air resistance).</em></u></h2>

Explanation:

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const2013 [10]

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Lena [83]

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2 years ago

kozerog [31]

The answer is B. Response Criteria
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5 0

2 years ago

Len [333]

Answer: 71.93 *10^3 N/C

Explanation: In order to calculate the electric field from long wire we have to use the Gaussian law, this is:

∫E*dr=Q inside/εo Q inside is given by: λ*L then,

E*2*π*r*L=λ*L/εo

E= λ/(2*π*εo*r)= 4* 10^-6/(2*3.1415*8.85*10^-12*2 )= 71.93 * 10^3 N/C

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2 years ago

Wittaler [7]

The formula is=1/2(m x v^2)

so = 1/2*(0.05)*(310)^2

ans is =2402.5 joules

3 0

2 years ago