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Korvikt [17]
2 years ago
9

How physical science can be truth?

Physics
1 answer:
JulsSmile [24]2 years ago
4 0
Because it is physically true day really know that by just knowing it very well
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You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.111 liters per second and
Marrrta [24]

Answer:

29.5 m/s

Explanation:

Volumetric flowrate = (average velocity of flow) × (cross sectional area)

Volumetric flowrate = 0.111 liters/s = 0.000111 m³/s

Cross sectional Area of flow = πr²

Diameter = 0.00579 m,

Radius, r = d/2 = 0.002895 m

A = π(0.002895)² = 0.0000037629 m²

Velocity of flow = (volumetric flow rate)/(cross sectional Area of flow)

v = 0.000111/0.0000037629

v = 29.5 m/s

7 0
3 years ago
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What type of electromagnetic wave is the shortest
Dafna1 [17]
B because radio waves make a sound that are short
8 0
3 years ago
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Mass of object is 50g moves in a circular path of radius 10cm find work done
topjm [15]

Answer:

Work done = 0.3142 Nm

Explanation:

Mass of Object is 50 g

Circular path of radius is 10 cm ⇒ 0.1 m

Work done = Force × Distance = ?

*Distance moved (circular path) ⇒ Circumference of the circular path

2πr = 2 × 3.142 × 0.1 ⇒ 0.6284 m

*Force that is enough to move a 50 g must be equal or more than its weight.

therefore convert 50 grams to newton = 0.5 N

Recall that; work done is force times distance

∴ 0.5 N × 0.6284 m

Work done = 0.3142 Nm

3 0
3 years ago
Which term describes the increase in a material's volume due to an increase in temperature?
AlladinOne [14]
Thermal Expansion.  best describes the increase in a materials volume 
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3 years ago
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A swimmer swims at 5 m/s. How long would it take to swim 5 laps of a 50m pool?​
Gre4nikov [31]
About 5 hours gooood luck
3 0
1 year ago
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