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Inga [223]
3 years ago
6

A 0.013 rubber stopper attached to a 0.93 string is swung in a circle if the tension in the string is 0.35 what is the period of

the stoppers motion
1.2
0.45
0.59
1.8
Physics
1 answer:
emmainna [20.7K]3 years ago
6 0

Answer: 0.45..............

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A force of 3kN acts on a car to make it accelerate by 1.5m/s/s. What is the mass of the car?
Masja [62]

Answer:

2

Explanation:

To find force it's force = mass times acceleration so to find mass you would divide force by acceleration

5 0
3 years ago
A person looks across a stadium at the scoreboard, which appears blurry. The person looks down at the program, which is complete
Pepsi [2]
Answer is D. Nearsightedness is when a person can see near, but not far. Everything appears blurry from far away, but as you get close to it, it becomes more focused
3 0
3 years ago
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Which of the following is a balanced chemical equation? MgF 2 + Li 2CO 3 ⟶ MgCO 3 + LiF 2Al + 6HCl ⟶ 3H 2 + AlCl 3 P 4 + 3O 2 ⟶
IRISSAK [1]

P₄ + 3O₂ ⟶ 2P₂O₃

Explanation:

A balanced equation is any equation that complies with the law of conservation of matter and mass.

The law of conservation of matter states that "in a chemical reaction, matter is neither created nor destroyed but simply rearranges. ".

  This suggests that the total number of atoms on both reactant and product sides must be the same in a balanced chemical equation. Also, the same atoms are found on both sides of a chemical equation with no additional or external species.

Now let us check if the equation is conserved:

                              P₄ + 3O₂ ⟶ 2P₂O₃

Atoms                      reactant                                product

P                                    4                                              4

O                                    6                                              6

We see that we have equal number of atoms on both sides. The equation is balanced.

learn more:

Balanced equation brainly.com/question/2612756

#learnwithBrainly

3 0
3 years ago
What information does the period number give about an atom?​
Anton [14]

Answer:All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.Explanation:

8 0
3 years ago
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Two electrons are separated by a distance of 3.00 x 10^-6 meter. What are the magnitude and direction of the electrostatic force
Brilliant_brown [7]
The electrostatic force between two charges q1 and q2 is given by
F=k_e  \frac{q_1 q_2}{r^2}
where 
k_e = 8.99 \cdot 10^9 N m^2 C^{-2} is the Coulomb's constant
r=3.00 \cdot 10^{-6} m is the distance between the two charges.

In our problem, the two charges are two electrons, so their charges are equal and equal to 
q_1=q_2=q=-1.6 \cdot 10^{-19}C

By substituting these values, we find the intensity of the force between the two electrons:
F=(8.99 \cdot 10^9 N m^2 C^{-2})  \frac{(-1.6 \cdot 10^{-19}C)(-1.6 \cdot 10^{-19}C)}{(3.00 \cdot 10^{-6} m)^2}=2.6 \cdot 10^{-17}N

This is the magnitude of the force each electron exerts to the other one. The direction is given by the sign of the charges: since the two electrons have same charge, they repel each other, so the force exerted by electron 1 is toward electron 2 and viceversa.
5 0
3 years ago
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