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2 years ago

if a car is going 10 miles/seconds and four seconds later it is going 80 miles/seconds what is its acceleration

Physics

1 answer:

Inga [223]2 years ago

4 0

The acceleration is 80 mps

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2 years ago

If the electron just misses the upper plate as it emerges from the field, find the magnitude of the electric field.

Damm [24]

Answer:

The magnitude of the electric field be 171.76 N/C so that the electron misses the plate.

Explanation:

As data is incomplete here, so by seeing the complete question from the search the data is

vx_0=1.1 x 10^6

ax=0 As acceleration is zero in the horizontal axis so

Equation of motion in horizontal direction is given as

$s_x=v_x_0 t$

$t=\frac{s_x}{v_x}\\t=\frac{2 \times 10^{-2}}{1.1 \times 6}\\t=1.82 \times 10^{-8} s$

Now for the vertical distance

vy_o=0

than the equation of motion becomes

$s_y=v_y_0 t+\frac{1}{2} at^2\\s_y=\frac{1}{2} at^2\\0.5 \times 10^{-2}=\frac{1}{2} a(1.82 \times 10^{-8})^2\\a=3.02 \times 10^{13} m/s^2$

Now using this acceleration the value of electric field is calculated as

$E=\frac{F}{q}\\E=\frac{ma}{q}\\E=\frac{m_ea}{q_e}\\$

Here a is calculated above, m is the mass of electron while q is the charge of electron, substituting values in the equation

$E=\frac{9.1\times 10^{-31} \times 3.02 \times 10^{13} }{1.6 \times 10^{-19}}\\E=171.76 N/C$

So the magnitude of the electric field be 171.76 N/C so that the electron misses the plate.

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3 years ago

Help pleaseeeeeeeeeeeee

Tasya [4]

A it’s not that hard tbh

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3 years ago

What is the speed of a helicopter that traveled 1200 miles in 7 hours

zlopas [31]

1200
-------=171 miles per hour
7

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3 years ago

Read 2 more answers

if a car is going 10 miles/seconds and four seconds later it is going 80 miles/seconds what is its acceleration￼

if a car is going 10 miles/seconds and four seconds later it is going 80 miles/seconds what is its acceleration