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Sloan [31]
3 years ago
10

Magnetic attraction is one of the chemical properties of matter * True False

Physics
1 answer:
GuDViN [60]3 years ago
7 0
False, because it can be observed, and does not have a chemical reaction that occurs. There is no chemical change taking place, therefore, the answer is false and it is a physical property.
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A 6.75 nC charge is located 1.99 m from a 4.46 nC point charge.
sladkih [1.3K]

Explanation:

Given that,

Charge 1, q_1=6.75\ nC=6.75 \times 10^{-9}\ C

Charge 2, q_2=4.46\ nC=4.46\times 10^{-9}\ C

The distance between charges, r = 1.99 m

To find,

The electrostatic force and its nature

Solution,

(a) The electric force between two charges is given by :

F=\dfrac{kq_1q_2}{r^2}

F=\dfrac{9\times 10^9\times 6.75\times 10^{-9}\times 4.46\times 10^{-9}}{(1.99)^2}

F=6.84\times 10^{-8}\ N

(b) As the magnitude of both charges is positive, then the force between charges will be repulsive.

Therefore, this is the required solution.

5 0
4 years ago
At an amusement park, the wheelie carries passengers in a circular path of radius r = 11.2 m. If the angular speed of the wheeli
Dafna1 [17]

Answer:

(a) Tangential velocity will be 38.648 m/sec

(b) Acceleration will be 133.617m/sec^2

Explanation:

We have given radius r = 11.2 m

Angular speed \omega =0.550rev/sec=0.550\times 2\pi =3.454rad/sec

(a) We have to find the tangential velocity

We know that tangential velocity is given by  

v_t=\omega r=3.454\times 11.2=38.684m/sec

(b) We know that acceleration is given by

a=\frac{v^2}{r}=\frac{38.684^2}{11.2}=133.617m/sec^2

8 0
3 years ago
A force of 20. newtons to the left is exerted on a cart for 10. seconds.
myrzilka [38]

OK.  Thank you.  That's an impulse of 200 Newton-sec to the left,
telling us that the cart's leftward momentum increases by 200 kg-m/s
(or its rightward momentum decreases by that amount).

Did you have a question to ask ?

7 0
3 years ago
_________ refers to conversion in the context of intentional torts against property?
Sveta_85 [38]

Answer:

A tort that permanently interferes with another's use and enjoyment of his or her personal property.

Explanation:

An intentional tort is a category of wrongful acts done on purpose by the tortfeasor. Examples are trespass to chattels, conversion, false imprisonment, battery, defamation and assault.

A tort that permanently interferes with another's use and enjoyment of his or her personal property refers to conversion in the context of intentional torts against property.

5 0
3 years ago
Read 2 more answers
Which of the following does NOT have a positive impact on your position on the
lana [24]

Answer:

Having a chronic disease

Explanation:

3 0
3 years ago
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