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Varvara68 [4.7K]
3 years ago
9

Please need help with this

Physics
2 answers:
Stella [2.4K]3 years ago
4 0

Answer:

D. The objects particles move faster

ozzi3 years ago
3 0

Answer:

D. The objects particles move faster

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A truck accelerating at 0.0083 meters/second2 covers a distance of 5.8 × 104 meters. If the truck's mass is 7,000 kilograms, wha
anygoal [31]
<span>F = m*a = 7000kg * 9.8N/kg = 68,600 N. 

68,600 N is your answer
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3 years ago
What would the charge of an atom be if it has six protons and six electrons
disa [49]
<span>Carbon atom showing 6 protons as electro positive charge in its nuclei should have same no of -ve charged electrons , that is 6 electronns in its radii to make an atom of C as a neutral element , for that each element in its atomic state should have equal no of protons and electrons , the no of neutrons which has no electric charge and almost negligible weight does play significant role except contributes to isotopes of the given atom or an element, so C atom having 6 protons should have 6 electrons</span>
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4 years ago
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Why can’t we see the molecules moving in a solid or liquid?
harina [27]

Answer:

Because molecules are to small for us people to see with the bare eye, unless you use a telescope.

Explanation:

5 0
3 years ago
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A 75 g bullet is fired from a rifle having a barrel 0.650 m long. Assuming the origin is placed where the bullet begins to move,
kolbaska11 [484]

Answer:

7557.875 J

Explanation:

Assumimg we need to find work done by the bullet on the gas

The work is found by integrating force over distance

W= W=\int_{x_i}^{x_f}F.ds

For the force in this problem we have

W=\int_{0}^{0.65}14000 + 10000x - 21000x^2.ds

= [14000x+10000x^2-21000x^3]_{0}^{0.65}

=7557.875 J

8 0
3 years ago
A protein molecule in an electrophoresis gel has a negative charge.The exact charge depends on the pH of the solution, but 30 ex
Ad libitum [116K]

Answer:

The magnitude of the electric force on a protein with this charge is 7.2\times10^{-15}\ N

Explanation:

Given that,

Electric field = 1500 N/C

Charge = 30 e

We need to calculate the magnitude of the electric force on a protein with this charge

Using formula of electrostatic force

F=Eq

Where, F = force

E = electric field

q = charge

Put the value into the formula

F=1500\times30\times1.6\times10^{-19}

F=7.2\times10^{-15}\ N

Hence, The magnitude of the electric force on a protein with this charge is 7.2\times10^{-15}\ N

6 0
3 years ago
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