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mezya [45]
2 years ago
13

1. Describe what is happening at point A when these 3 vectors act on point A. 2. Describe what happen to the resultant vector at

Point B when the 5N vector goes from 0 degree to 180 degrees. 3. A lawnmower is pushed with a constant force F. as 0 between vector F and the horizontal plane decreases describe what is happening to the Fx and Fy vector components of vector F. 4.Calculate the magnitude of the component of the force parallel to the ground.

Physics
1 answer:
zavuch27 [327]2 years ago
4 0

Answer: Don't know sorry

Explanation:

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A 4-kilogram ball moving at 8 m/sec to the right collides with a 1-kilogram ball at rest. After the collision,
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Conservation of momentum: total momentum before = total momentum after

Momentum = mass x velocity

So before the collision:
4kg x 8m/s = 32
1kg x 0m/s = 0
32+0=32

Therefore after the collision
4kg x 4.8m/s = 19.2
1kg x βm/s = β
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4 0
3 years ago
a roller coaster is at the top of a hill and rolls to the top of a lower hill.If mechanical energy is conserved,on the top of wh
pychu [463]
Hello!!

Here we have a simple matter of conservation of energy. ME=PE+KE.

At point A we have PE=mgh and KE=1/2mv^2. At point A all we have is PE since the coaster isn’t rolling yet. But by conservation of energy, we know that it will have enough energy to roll down and get to and equal height on another hill. Providing we are neglecting friction and drag and resistance forces which we are in this case. So we can conclude that the KE will be greater at Point B since ME=PE+KE and for ME to remain the same and we know the PE is less on lower hill, so we can conclude that KE on lower hill is greater to keep ME the same and have conservation of energy.

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3 years ago
The element in an incandescent light bulb that releases light energy is? A- a phosphor, B- mercury vapor, C- a thin tungsten fil
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C.) A Thin tungsten filament
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3 years ago
A 50-kg block is at rest on a 15o slope. A force of 250 N is acting on the block up the slope parallel to it. If the block does
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The minimum value of the coefficient of static friction between the block and the slope is 0.53.

<h3>Minimum coefficient of static friction</h3>

Apply Newton's second law of motion;

F - μFs = 0

μFs = F

where;

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  • F is applied force

μ = F/Fs

μ = F/(mgcosθ)

μ = (250)/(50 x 9.8 x cos15)

μ = 0.53

Thus, the minimum value of the coefficient of static friction between the block and the slope is 0.53.

Learn more about coefficient of friction here: brainly.com/question/20241845

#SPJ1

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2 years ago
Which object has more thermal energy a bowl of soup or pot of soup
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A pot of soup because metal is a better conductor of heat and it stores more heat as well. thermal energy is heat energy. 

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