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Masteriza [31]
4 years ago
9

Describe one source of renewable energy.

Physics
2 answers:
stepan [7]4 years ago
8 0
Tidal power is the only form of energy which derives directly from the relative motions of the Earth–Moon system, and to a lesser extent from the Earth–Sun system
SOVA2 [1]4 years ago
7 0
Sunlight.
oxygen.
wood.
paper.

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physics major is cooking breakfast when he notices that the frictional force between the steel spatula and the Dry Steel frying
givi [52]

Answer:0.667 N

Explanation:

Given

It is noticed that Frictional Force is 0.2 N

Coefficient of kinetic Friction \mu _k=0.3

We know Friction Force is given by

f_r=\mu _k\times Normal\ reaction

therefore

0.2=\mu _k\times N

0.2=0.3\cdot N

N=\frac{0.2}{0.3}

N=0.667 N

8 0
3 years ago
What occurs to the arrangement of water molecules as water melts
Nikolay [14]

The arrangements of the water molecules they begin to spread apart. As the water(ice) melts the molecules develop fewer compact and start juddering harder until the ice has changed state into liquid.

7 0
3 years ago
Read 2 more answers
Can a moving object have gravitational energy?
Evgesh-ka [11]

Answer:

It is worth noting that the higher the gravitational energy of an object moving downwards, the lower the kinetic energy, and the lower the kinetic energy of an object moving upwards, the higher its gravitational energy.

Gravitational potential energy is acquired by an object when it has been moved against a gravitational field. For example, an object raised above the surface of the Earth will gain energy, which is released if the object is allowed to fall back to the ground.

5 0
3 years ago
The length of the assembly decreases by 0.006 in. when an axial a- force is applied by means of rigid end plates. Determine
Triss [41]

Answer:

(a) The magnitude of the applied force is (0.0001524k) Newton

(b) Corresponding stress in the steel core = (0.0001524k/area) Newton per meter square

Explanation:

(a) From Hookes law of elasticity,

Force applied = force constant (k) × compression

compression = 0.006 in = 0.006 × 0.0254 = 0.0001524 meter

Force applied = k × 0.0001524 = (0.0001524k) Newton

(b) Stress = Force applied (Newton)/area of steel core (meter square) = (0.0001524k/area) Newton per meter square

6 0
3 years ago
Which of these statements suggests that the orbital period of Venus is shorter than that of Saturn?
Snowcat [4.5K]

Answer:

C) Venus is closer to the Sun than Saturn is.

Explanation:

This is the right answer.

5 0
3 years ago
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