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Semmy [17]
3 years ago
5

W&P3)A janitor pushes a mop with a force of 52 N. If the mop handle is at an angle of 52 degrees above the horizontal, how m

uch work is required to push the mop 4.6m?
Physics
1 answer:
Brilliant_brown [7]3 years ago
4 0

Answer:

the \: required \: work is \to \\ \boxed{w = 147.3 \: J}

Explanation:

the \: required \: force \: is \: the \: horizonal \: component \: of \: \\  the \: force \: f_{x} = 52 \cos(52)  =  \boxed{32.014396716 \: N} \\ the \: work \: to \: be \: done \: is  \to \\ w = f \times s = 32.014396716 \times 4.6 \\  \boxed{w = 147.26622489 \: J}

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Lerok [7]
Assuming the gas behaves ideally,
PV/T = constant. P will also be constant in this giving us:
V₁/T₁ = V₂/T₂
40/320 = 20/T₂
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The answer is A.
6 0
3 years ago
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A bug splats against the windshield of a car traveling at high speeds down a backcountry road. Which statement correctly compare
zvonat [6]

Answer:

C. The bug's change in momentum is equal to the car's change in momentum.

Explanation:

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\frac{\Delta P_{12}}{\Delta t} = \frac{\Delta P_{21}}{\Delta t}

so we have

\Delta P_{12} = \Delta P_{21}

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6 0
3 years ago
The picture is attached.
VLD [36.1K]

Answer:

C

Explanation:

5 0
3 years ago
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An elevator starts from rest with a constant upward acceleration and moves 1 m in the first 1.7 s. A passenger in the elevator i
avanturin [10]

Answer: Tension = 53.6N

Explanation:

Given that

Height h = 1 m

Time t = 1.7 s.

Mass m = 5.1 kg 

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h = X0+ V0t + at2/2;

Th elevator starts from rest with a constant upward acceleration. Initial velocity Vo = 0, also Xo = 0; thus

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7 0
3 years ago
HELP PLS WHAT IS Y COMPONENT
jeka94

Answer:

11.5

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