2 years ago

I need help algebra in physics

Physics

1 answer:

Tom [10]2 years ago

8 0

Answer:

A: 0.26

Explanation:

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A car with a constant velocity of 22 m/s is driven for 6.8 s. How far did it travel? (V =A d/AT)

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Answer: 150 m

Explanation:

velocity = 22 m/s

t = 6.8 s

velocity = $\frac{distance}{time}$

distance = velocity × time

= 22 × 6.8

= 149.6 m

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3 years ago

What force is the total force felt by an object?

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Net force felt by an object.

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if a bowling ball hits a wall a force of 6 N, the wall exerts a force of how much back. on the bowling ball

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It would exert the same back right?

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If a trapezoidal channel has side slopes of 1:1, hydraulic depth is 5 feet, the bottom width is 8 feet, flow is 2,312 cubic feet

Evgesh-ka [11]

Answer:

$S = \dfrac{1}{2.5}$

Explanation:

given,

side slope = 1 : 1

hydraulic depth(y) = 5 ft

bottom width (b)= 8 ft

x = 1

Q = 2,312 ft³/s

n = 0.013

slope of channel = ?

$R = \dfrac{A}{P}$

$R = \dfrac{y(b + xy)}{b+2y\sqrt{1+x^2}}$

$R = \dfrac{5(8+ 5)}{8+2\times 5\sqrt{1+1^2}}$

R = 4.69 m

using manning's equation

$Q = \dfrac{1}{n}AR^{2/3} S^{1/2}$

$2312= \dfrac{1}{0.013}\times (5(8+5))\times 4.69^{2/3} S^{1/2}$

$2312=14009.37\times S^{1/2}$

S = 0.406

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A = 94.22 Newtons

b = 58.16 kg

Gravity on the moon is 1.62 m/s^2

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