3 years ago

Can an object in motion ever change directions?

1 answer:

4 0

Answer:

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity.

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A 10n falling object encounters 4n of air resistance. what is the net force on the object?

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3 years ago

Explain how its possible for a compound to have both iconic and covalent bonds.<br><br>Thanks!

Evgesh-ka [11]

The atoms which make up the ion are covalently bonded to one another. 19) It is possible for a compound to possess both ionic and covalent bonding. a. If one of the ions is polyatomic then there will be covalent bonding within it.

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3 years ago

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A typical nuclear fission power plant produces about 1.00 GW of electrical power. Assume the plant has an overall efficiency of

mamaluj [8]

Answer:

mass consumed by 235U each day = 2 kg

Explanation:

electrical power produced = 1 GW = 1 × 10⁹ × (6.24151 × 10¹⁸ ) eV

= 6.24151× 10²¹ MeV/s

thermal energy = 0.420 * 250 = 105 MeV

$\dfrac{1 GW}{150 MeV}= \dfrac{6.24151\times 10^{21}}{105}$

= 5.94 × 10¹⁹ fission/second

=5.94 × 10¹⁹× 24 × 60 ×60)

= 5.13 × 10²⁴ fission/day

mu = 235.04393 × 1.660× 10 ⁻²⁷ = 390.1729× 10⁻²⁷ Kg

M = mu ×5.13 × 10²⁴

= 390.1729× 10⁻²⁷ ×5.13 × 10²⁴

M = 2 kg(approx.)

mass consumed by 235U each day = 2 kg

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3 years ago

When potential energy is converted into Kinetic energy, some of that kinetic energy is always in the form of

Paraphin [41]

Answer: thermal energy

Explanation: Thermal energy is the conversion of kinetic energy

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