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Alexus [3.1K]
2 years ago
13

What is the weight of an object (mass = 60 kilograms) on Mars, where the acceleration due to gravity is 3.75 meters/second2?. Se

lect one of the options below as your answer:. A. 1.6 newtons. B. 16 newtons. C. 22.5 newtons. D. 225 newtons. E. 2250 newtons.
Physics
2 answers:
UNO [17]2 years ago
0 0
The weight (W) of an object is the product of its mass (m) and the acceleration (a). That is,
                                    W = m x a
Substituting the known values give,
                                W = (60 kg) x (3.75 m/s²) = 225 N
Thus, the object's weight is 225 N. The answer is letter D.
belka [17]2 years ago
0 0
Weight = mass * gravity = 60 kg * 3.75 m/s² = 225 N

Option D.
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Two people carry a heavy object by placing it on a board that is 2.2 meters long. One person lifts with a force of 750 N at one
stiks02 [169]

Answer:

This means that the center of mass is locates 0.72m from the 750N force

Explanation:

Since the board is 2.2m long, that will be the length of the board.

Let the center of mass of the body be hinged at the center using a knife edge as shown in the diagram attached.

Let x be the distance from the 750N force to the knife edge and the distance from the 360N force to the knife edge be 2.2-x

Using the principle of moment which states that the sum of clockwise moment is equal to the sum of anti clockwise moment.

Moment = force × perpendicular distance

For ACW moment;

Moment = 750×x = 750x

For the CW moment;

Moment = 360 × (2.2-x)

Moment = 792-360x

Equating ACW moment to the clockwise moment we have;

750x = 792-360x

750x+360x = 792

1110x = 792

x = 792/1110

x = 0.72m

This means that the center of mass is locates 0.72m from the 750N force

3 0
1 year ago
The electrical system that provides power to your school has two major parts: The transmission line which sends power to your lo
7nadin3 [17]

Answer:

The answer is below

Explanation:

Because of the resistance of transmission lines, high current along the line leads to large voltage drop. This voltage drop causes low efficiency because the voltage at the receiving end is far less than that at the sending end.

Therefore there is need to transmit at a higher voltage (smaller current) than that required by distribution because of efficiency.

Hence, For safety and efficiency, the voltage must be large in the transmission lines and small in the distribution lines.

8 0
2 years ago
What force is required to give an object with mass 300 kg an acceleration of 2
Andre45 [30]

Answer:

C. 600 N

Explanation:

Given,

mass of object (m)= 300kg

acceleration(a) =2m/s^2

We know that,

Force(F)=ma

=300*2

=600N

So,600N force is required to give an object.

5 0
2 years ago
HELP ASAP. WILL GIVE BRAINLIEST. BEING TIMED HURRY!!!!
polet [3.4K]

Answer:

B

Explanation:

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6 0
2 years ago
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Which object will have the greatest gravitational pull?.
Alexeev081 [22]

Answer: Since you haven't provided any answer choices, the answer would be the object with the greatest mass, like the earth vs the sun. The sun is obviously way bigger therefore has more graviational pull.

Hope this helps!

7 0
1 year ago
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