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Sindrei [870]
3 years ago
6

Which statement is true about the SI System?

Physics
1 answer:
Mariulka [41]3 years ago
4 0

Answer:

maybe the answer is in is D part

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Find the resultant of the following vector
Mashutka [201]

You can use the Pythagorean theorem to calculate the hypotenuse, since the resultant is the hypotenuse of the triangle.

r^{2} = x^{2} + y^{2}\\r^{2} = 12^{2} + 16^{2}\\r^{2} = 144 + 256\\r^{2} = 400\\r = \sqrt{400}\\r = 20N

8 0
3 years ago
The more mass an object has,the less inertia the object has. True or False
dedylja [7]

Answer:

This is true. objects that have a greater mass has greater interia. which also means objects that have a less mass has also less interia.

Explanation:

i hope this helps!!!

7 0
3 years ago
"A proton is placed in a uniform electric field of 2750 N/C. You may want to review (Page) . For related problem-solving tips an
tekilochka [14]

To solve this problem we will start from the definition of Force, as the product between the electric field and the proton charge. Once the force is found, it will be possible to apply Newton's second law, and find the proton acceleration, knowing its mass. Finally, through the linear motion kinematic equation we will find the speed of the proton.

PART A ) For the electrostatic force we have that is equal to

F=qE

Here

q= Charge

E = Electric Force

F=(1.6*10^{-19}C)(2750N/C)

F = 4.4*10^{-16}N

PART B) Rearrange the expression F=ma for the acceleration

a = \frac{F}{m}

Here,

a = Acceleration

F = Force

m = Mass

Replacing,

a = \frac{4.4*10^{-16}N}{1.67*10^{-27}kg}

a = 2.635*10^{11}m/s^2

PART C) Acceleration can be described as the speed change in an instant of time,

a = \frac{v_f-v_i}{t}

There is not v_i then

a = \frac{v_f}{t}

Rearranging to find the velocity,

v_f = at

v_f = (2.635*10^{11})(1.4*10^{-6})

v_f = 3.689*10^{5}m/s

7 0
3 years ago
How do you know the speed of an electromagnetic wave in vacuum?
larisa [96]

Answer:

when huburxvkruxv hfgy

8 0
3 years ago
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A 3.5 kg object gains 76 J of potential energy as it is lifted vertically. Find the new height of the object?
Eduardwww [97]

Answer:

1.72 m

Explanation:

Potential energy = mgh, where m is mass, g is acceleration due to gravity (9.8), and h is height

76 = (3.5)(9.8)h

76=44.1h

h=1.72335600907 ≈1.72 m

8 0
3 years ago
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