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3 years ago

A dog pulls on his leash with a 10-N force to the left. Identify the reaction force

Physics

1 answer:

GREYUIT [131]3 years ago

5 0

The reaction force is 10N to the right

its comes from tension in the leash

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States that there is an exchange of materials when two objects come into contact with each other

pishuonlain [190]

"Edmond Locard" states that there is an exchange of materials when two objects come into contact with each other.

Explanation:

A French criminologist who was popular as the "Sherlock Holmes of France," the pioneer in forensic science named as Dr. Edmond Locard. He articulated forensic science's fundamental principle "Each touch leaves a trace." This became known as Locard's philosophy of exchange. A Locard hypothesized that each and every time you touch another person, place or object, the result would be an exchange of materials. Burglars, for instance, will leave evidence of their existence behind and take traces with them too.

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3 years ago

Convert 11 milliseconds into seconds

Alex17521 [72]

Answer:

0.011

Explanation:

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3 years ago

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An 1100-kg car traveling at 27.0 m/s starts to slow down and comes to a complete stop in 578 m. What is the magnitude of the ave

Trava [24]

Answer:

693.685 N

Explanation:

t = Time taken

u = Initial velocity = 27 m/s

v = Final velocity

s = Displacement = 578 m

a = Acceleration

m = Mass

Equation of motion

$v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-27^2}{2\times 578}\\\Rightarrow a=-0.63062\ m/s^2$

Force

F = ma

$F=1100\times -0.63062\\\Rightarrow F=-693.6851\ N$

Magnitude of braking force required to stop the car is 693.685 N

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4 years ago

A nucleus of the boron-11 isotope consists of five protons and six neutrons. A particular ionized atom of boron-11, whose mass i

hram777 [196]

Answer:

E = 3.74 X 10^{-7} N/C

upward direction

Explanation:

the force from an electric field is F = qE

as in the given question, three electron is missing in the ion, so, it has a positive charge of-

(3)(1.6 X 10-19) = 4.8 X 10^{-19} C

To levitate, the electric force must match the weight of the ion

so qE = mg

$E = \frac{mg}{q}$ $E = \frac{(1.83 X 10-26)(9.81)}{(4.8 X 10^{-19})}$

E = 3.74 X 10^{-7} N/C

Since the charge is positive therefore the Field will point in upwards direction.

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3 years ago

What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?

denis-greek [22]

W= F x dPower (formula)P= W/tForce (formula)F= m x anewton (N)the SI unit for force , equal to 1 kg*m/s2joule (J)the SI unit of work, equal to 1 newton-meter

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3 years ago

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