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Aloiza [94]
3 years ago
8

Why is a shopping bag of feathers lighter than a shopping bag of nails?

Physics
1 answer:
ValentinkaMS [17]3 years ago
3 0
Because they have different density (density of feathers < density of nails)  
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Julie is cycling at a speed of 3.4 meters/second. If the combined mass of the bicycle and Julie is 30 kilograms, what is the kin
lesantik [10]

Answer:

A

Explanation:

Just recall the formula for the gain in kinetic energy and substitute the values in.

4 0
3 years ago
A rocket weighs 1.000. N on the surface of Earth. What is its weight at a distance of two Earth radii above the
Pepsi [2]

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0 111.0N be cause the rest do not add up

7 0
3 years ago
During aerobic activity, if your heart rate is lower than the lower limit, you are ___________________.
soldier1979 [14.2K]
Not pushing yourself hard enough is the answer since your heart rate doesn't even hit your lower minimum.
Pushing yourself to the limit is at your max heart rate.
Just at the right spot is at your max heart rate.
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4 0
4 years ago
An irrigation channel has a rectangular cross section of 1.5 ft deep x 11 ft wide on the input side. On the far end of the chann
garik1379 [7]

Answer:

55 ft/s

Explanation:

A₁ = Area of rectangular cross-section at input side = 1.5 x 11 = 16.5 ft²

A₂ = Area of rectangular cross-section at far end = 1.5 x 6 = 9 ft²

v₁ = speed of water at the input side of channel = 30 ft/s

v₂ = speed of water at the input side of channel = ?

Using equation of continuity

A₁ v₁ = A₂ v₂

(16.5) (30) = (9) v₂

v₂ = 55 ft/s

5 0
4 years ago
A clothes dryer in a home draws a current of 10 amps when connected on a special 220-volts household circuit.what is the resista
aliya0001 [1]

Answer:

22Ω

Explanation:

if    V ⇒ voltage

      I ⇒ current

      R ⇒ resistance

V = IR

220 = 10 x R

220 / 10 = R

22 = R

8 0
2 years ago
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