PHYSICS MIDDLE SCHOOL

A person weighing 500 N climbs on a rope. What is the tension on the rope?

Answers

Answer 1
Answer:
At the times when the person is not moving up or down, the tension in
the rope is 500N.  At those moments, the forces on the person consist
of 500N downward due to gravity and 500N upward due to the tension in
the rope, and with the forces balanced, the person just hangs there and
doesn't accelerate up or down.

At the times when the person is actually climbing, that is, hauling himself
upward, the tension in the rope must be greater than 500N.  At those moments,
the net force on the person is upward, and the person's body accelerates upward.
Answer 2
Answer:
the tension of a person weighing 500 pounds on a rope will make the rope break little by little,untill it gets to the point the rope snaps.

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How can working together help scientist achieve their goals?

Answers

When scientists work together it helps them achieve their goals when they share different ideas with eachother

What is the weight of a 45 kg box? N

Answers

45 kg * 9.8 m/s^2 = 441 N.

Answer:

The force of a mass's weight is defined as its mass * acceleration due to gravity.

On Earth, g is about 9.8 m/s^2. This will be the acceleration due to gravity.

Then, 45 kg * 9.8 m/s^2 = 441 N.

what is another name for the cluster of the cells that attach the walls of the uterus fertilization?.......and......how does the mother provide the developing fetus with food and oxygen?......plzzz help

Answers

In a nutshell...
The cluster of cell is the Blastocyst and it consist of cells that will grow to form the chorion and the allantois (which will all merge for the most part to form allantachorion) , the yolk  as well as the amnion and a set of special cells known as the inner mass of cells.  The Blastocyst once it attaches to the Linning of the Endometrium in the Uterus will see where placental material start to generate and it is the placenta which contain the maternal and fetal blood as well as the facilitator for the umbilical chord which all work in tandem  to provide the fetus with oxygen and nutrients.

Archimedes' principle says that a 15 N object is buoyed up by a force that is

Answers

Answer:

  • equal to the weight of the fluid that the body displaces

Explanation:

Archimides' principle states the definition of buoyant force.

These are the imporant features of the buoyant force that you need to know:

  • Except for the very special vacuum condition, every body is immersed in a fluid.

  • The body is subject, at least, to two forces, its weight and the buoyant force.

  • The weight is the result of the gravitational attraction exerted by the planet, and is equal to the mass of the object by the gravitational acceleration (approximately 9.8 m/s² on Earth). It is directed vertically downward.

  • The buoyant force is the vertical upward force that the fluid exerts on the object and is equal to the weight of the volume of fluid displaced by the object.

  • The volume of fluid that the body displaces is equal to the immersed volume of the body.

Answer:

an immersed object is buoyed up by force equal to the weight of the fluid it displaces

The moon has the greatest effect on earth's...... (1) year (2) seasons (3) ocean tides (4) daylight hours

Answers

Hello EnglishGeek02!

The moon has the greatest affect on the earth's ocean tides.

Cheers!
-Blizzard
it would be ocean tides

What is an example of a light mediem wave.

Answers

Speed of light is an example of a light medium wave.

Most famous Michelson-Morley (1887) demonstrated that light travels at the same speed regardless  of whether it was measured in the direction of the Earth's motion or at right angles to it. When the light travels through a vacuum: It moves from medium to medium (example: air to glass) speed can change depending of the new medium's index of refraction and the "bending" of light is essentially how lenses work.
Hey there

An example of a light medium wave is Speed of light. 
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