A 10.-kilogram object, starting from rest, slides down a frictionless incline with a constant acceleration of 2.0 m/sec2 for four seconds. What is the approximate weight of the object? A) 1 N B) 10 N C) 100 N D) 1,000 N

Answers

Answer 1

Answer:

C) 100N

Given:

Mass of the object = 10kg

Acceleration due to gravity = 9.81m/s²

Weight is a measure of the force of gravity pulling down on an object. It depends on the object's mass and the acceleration due to gravity, which is 9.8 m/s² on Earth.

Formula for calculating the Weight of an object is expressed as;

Weight = mass × acceleration due to gravity

On substituting the values in the above formula:

Weight = 10×9.81

Weight = 98.1N

Hence, the approximate weight of the object is 100N.

Therefore, the correct option is option C.

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Answer 2

Answer:

C) 100N

Explanation:

Formula for calculating the Weight of an object is expressed as;

Weight = mass × acceleration due to gravity

Given

Mass of the object = 10kg

Acceleration due to gravity = 9.81m/s²

Substitute into the formula above

Weight = 10×9.81

Weight = 98.1N

Hence the approximate weight of the object is 100N

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What is the net charge (overall or sum of charges) of the nucleus and what number is it equal to?

Answers

Because the nucleus is made up of positively charged protons and neutrally charged neutrons, and no negatively charged particles, the charge of the nucleus will always be equal to the sum of the charges of its protons. A simpler way to say it is because each proton has a +1 charge, the charge of the nucleus will be the same as the number of protons in it.

An upward force is applied to a 6.0–kilogram box. this force displaces the box upward by 10.00 meters. what is the work done by the force on the box?

Answers

Answer:

The work done by the force on the box is W = 588 J

Explanation:

The work done by the force on the box can be expressed as:

$W=mg(h_(2)-h_(1))$

where m is the mass of the box, g is the gravitational force g= $g=9.8(m)/(s^(2))$ and $h_(2)$ , $h_(1)$ are the heights of the box in at final and initial moment.

Replacing the values, you have:

$W=6.0kg*9.8(m)/(s^(2))*(10.00m-0.00m)$

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work = fs = mgh [Ep] = 6(10)(10) = 100

The rotational speeds of four generators are listed in RPM (revolutions per minute). Arrange the generators in order based on the electric fields they create. Start with the weakest electric field and end with the strongest. Assume that the generators are identical except for their speed.Tiles
3,600 RPM
3,200 RPM
3,400 RPM
3,000 RPM
Sequence

<

<

<

Answers

with the same generator, so the only factor for producing the slectric field is only the speed. The faster the rotational speed of the generator the greater it produce electric field. So the sequence is 3000 rpm < 3200 rpm < 3400 rpm < 3600 rpm

Answer: 3000

3200

3400

3600

Explanation: just took the test 5 out of 5

Ho Chi Minh led the Communist forces in Indochina and in North Vietnam. a. True
b. False

Hitler and Mussolini headed two of the Axis powers of World War II.
a. True
b. False

Answers

A. True.

He was very much influenced by the Bolshevik Revolution of Russian (1917) and founded his own Indochinese Communist Party in 1930. He led communist forces and fought against the French colonialism.

A True,

The Hitler headed the Germany while as Mussolini headed Italy and both were allies of Axis powers.

the correct answer is a

A tank with a flat bottom is filled with water to a height of 4 meters. What is the pressure at any point at the bottom of the tank? (You can ignore atmospheric pressure when calculating your answer.)A. 18.9 kPa
B. 9.8 kPa
C.39.2 kPa
D. 4.0 kPa

Answers

Answer

C.39.2 kPa

Explanation

The pressure in liquids depend on the depth or what we call the liquid column(h), the density of the liquid(σ) and the the acceleration due to gravity(g).

h = 4.00 m

σ = 1000 Kg/m³

g = 9.8m/s²

Pressure Is given by;

P = σgh

= 1000 × 9.8 × 4

= 39200 Pa

=39.2 KPa

P=pgh, remeber that g=9.8 , so ignoring the atmosheric pressure youwould just multiply 9.8x4 and you would get 39.2KPa

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Answers

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GL!

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