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maria [59]
3 years ago
6

What is the mass of an object if a force of 34 N produces an acceleration of 4 m/s^2?

Physics
2 answers:
Paha777 [63]3 years ago
8 0
F=ma

F/a=m

34/4 =8.5

8.5 kilograms
Westkost [7]3 years ago
8 0

Answer:

Mass of the object is 8.5 kg.

Explanation:

Given that,

Acceleration of the object is 4 m/s^2

Force applied to the object, F = 34 N

To find :

The mass of the object.

Solve :

Let m is the mass of the ball. The Newton's second law of motion defines the magnitude of force acting on an object.

F=ma

m=\dfrac{F}{a}

m=\dfrac{34\ N}{4\ m/s^2}

m = 8.5 kg

Therefore, the mass of the ball is 8.5 kg.

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6 0
3 years ago
What speed would a fly with a mass of 0.55g need in order to have a kinetic energy of 7.6 •10^4 j?
masya89 [10]

Answer:

16613 m/s

Explanation:

Given that

mass of the fly, m = 0.55 g = 0.55*10^-3 kg

Kinetic Energy of the fly, E = 7.6*10^4 J

Speed of the fly, v = ? m/s

We know that the Kinetic Energy is that energy that an object, in this case, the fly, possesses due to its motion.

The Kinetic Energy, KE of any object is represented by the formula

KE = 1/2 * m * v²

If we substitute the values in the relation, we have,

7.6*10^4 = 1/2 * 0.55*10^-3 * v²

v² = (15.2*10^4) / 0.55*10^-3

v² = 2.76*10^8

v = √2.76*10^8

v = 16613 m/s

Thus, the fly would need a speed of 16.6 km/s in order to have a Kinetic Energy of 7.6*10^4 J

7 0
3 years ago
A car accelerates uniformly in a straight line
erik [133]

Answer:

21.59 m/s

Explanation:

recall that one of the equations of motions can be expressed as

v² = u² + 2as

where,

v = final velocity (we are asked to find this)

u = initial velocity = 0m/s (because it says that it starts from rest)

a = acceleration = 3.7m/s²

s = distance travelled = 63 m

simply substitute the known values above into the equation:

v² = u² + 2as

v² = 0² + 2(3.7)(63)

v² = 466.2

v = √466.2

v = 21.59 m/s

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3 years ago
The images output from your new color laser printer seem to be a little too blue. What can you do to fix this?
Svetradugi [14.3K]

Answer:

The images output from your new color laser printer seem to be a little too blue. to fix this problem we need to calibrate the printer.

Explanation:

This can be done by opening the toolbox, clicking in the device setting folder their you get print quality page click on it. Under the print quality option click on the calibrate next to calibrate now. Then click OK unless when the 'your request has been sent to the device' appears on the screen. When the calibration ends again try printing. calibrating is useful for managing the proper alignment of the inkjet cartridge nozzle to the paper and each other, without proper calibration the print quality deteriorates.

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3 years ago
Do tides depend more on the strength of gravitational pull or on the difference in strengths? explain.
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