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Ne4ueva [31]
3 years ago
13

Which direction will thermal energy flow if you pick up a snowball with your bare hand? Thermal energy will flow from the snowba

ll to your hand. Thermal energy will flow from your hand to the snowball. Thermal energy will not flow between your hand and the snowball.
Physics
2 answers:
Lapatulllka [165]3 years ago
4 0

Answer:

b. Thermal energy will flow from your hand to the snowball.

Explanation:

Marina CMI [18]3 years ago
4 0

Answer:

B

Explanation:

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A large, simple pendulum is on display in the lobby of the United Nations building. If the pendulum is 18.5 m in length, what is
zhannawk [14.2K]

Answer:

     t = 1,144 s

Explanation:

The simple pendulum consists of an inextensible string with a mass at the tip, the angular velocity of this is

     w = √( L / g)

The angular velocity is related to the frequency and period

     w = 2π f

      f = 1 / T

     w = 2π / T

Let's replace

     2π / T = √ (L / g)

     T = 2π √ (g / L)

Let's calculate

     T = 2π √ (9.81 / 18.5)

     T = 4,576 s

The definition of period in the time it takes the ball to come and go to a given point (a revolution) in our case we go from the end to the middle point that is a quarter of the path

     t = T / 4

     t = 4,576 / 4

     t = 1,144 s

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You push a 15N cat in a box horizontally across the floor for 5m. What is the work done on the cat? W=Fx
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Answer:

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the angle between the deplacement and N is 0

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Electromagnets are created by?
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A coil of insulated wire around an iron core 
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