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Statics

Statics is the branch of mechanics that describes bodies which are acted upon by balanced forces and torques so that they remain at rest or in uniform motion. In statics, the bodies being studied are in equilibrium.

434 Questions

If you float face down in a pool what surface are you lying on?

You would be lying on the surface tension of the water, with the pressure of your body evenly distributed across the water. The surface tension allows you to float effortlessly.

An electricdipoleconsist of two points charges Q1 plus 12nC and Q2-12nC placed 10cm apart. A.)compute the potential at points abc.B.) calculate the work done in moving an electron from point a to b?

A) The potential at point A, B, and C will be: V_A = k(Q1/0.1) - k(Q2/0.1), V_B = 0, V_C = k(Q2/0.2).
B) The work done in moving an electron from point A to B is: W = q(V_B - V_A). Given q = charge of an electron = -1.6 x 10^-19 C, the work done can be calculated.

What do xerox machines have to with static electricity?

A photocopy machine (whether from Xerox or from some other company) typically uses light to induce changes in the static charge on a drum. The static charges will attract the toner, which contains metal.

Static discharges occur when?

Static discharges occur when there is a buildup of electric charge on an object due to friction with another object, leading to the sudden flow of electricity between the charged object and a conductive material. This can result in a spark or a sudden shock, commonly experienced when touching a metal object after walking on a carpeted floor.

How does mean free path depend on pressure of a gas?

I believe the shorter the mean free path, the higher the density. Basically, the closer the molecules are, the more dens it is. That is why when you add pressure, the density goes up ... by this equation.

d = PM/RT

P=pressure

M=molar mass

R=gas constant

T=absolute temperature

Basically, the more pressure put on a gas, the closer it goes to being a liquid... which is denser. The bigger the gas (molar mass) the smaller the mean free path, the denser it is.

However, I do not know how to relate mean free path mathematically to density yet.

Would you get an Electric shock when touching a radiator?

It is unlikely to get an electric shock from touching a standard radiator as they are usually not electrically charged. However, if a radiator is being used improperly or has a fault in its electrical connection, there is a possibility of getting an electric shock. It's always best to have electrical systems checked by a qualified professional to ensure safety.

What are static lines?

Static lines refer to fixed cords or ropes used in activities such as mountain climbing or rappelling. These lines are typically anchored securely and do not move during the activity, providing a stable point of contact for climbers or participants. Static lines are used to maintain safety and control during these types of activities.

Is static plasma?

Plasma is the fourth state of matter, consisting of ions and free electrons. It is highly conductive and responds to electromagnetic fields. Static plasma refers to plasma that is not in motion or dynamic, but remains in a stable, stationary state.

How does a photocopier use static energy?

A photocopier uses static electricity to transfer toner particles onto paper. The toner particles are given an electrical charge that is opposite to the charge on the photoreceptor drum. This causes the toner particles to be attracted to the charged areas of the drum and subsequently transferred onto the paper.

What makes one material a better material than the other?

Better... for what exactly? Please note that while one material can be better for one purpose, another one may be better for a different purpose.Differences between materials are due to the different percentages of elements present in the materials, as well as to the way the atoms are arranged.

Why is the pressure at a given point in a fluid equal from all directions ie surely the vertical forces and the horizontal force forces can be different so long as they balance separately?

OK, then consider a diagonal direction, and the forces in that direction.

If the horizontal COMPONENT of force in that direction were not equal to

the horizontal component of force in the opposite direction, then some fluid

would move horizontally until those components were equal. Likewise, if the

vertical component of force in that direction were not equal to the vertical

component of force in the opposite direction, then some fluid would move

vertically until those components were equal. Eventually, once things settle

down, every component of force at that point in the fluid must be equal,

so the pressure on a tiny element of area at that point doesn't depend on

what direction the area is facing. qed

Pretty good for the spur of the moment, eh !

How do tower cranes stay upright?

A tower crane is tall and narrow. Because of this, a small amount of tilt could cause the whole structure to topple. The base of the crane is loaded with concrete, which gives it a lower centre of mass to prevent it from toppling.

Is silver bacterial static?

Yes, silver has antibacterial properties because it can disrupt bacterial cell membranes and inhibit their growth. It is considered bacteriostatic rather than bactericidal, as it does not directly kill bacteria but instead prevents their reproduction. Silver is often used in medical devices, wound dressings, and water purification systems for its antimicrobial effects.

What is static torsion?

Static torsion refers to the twisting force experienced by a structure or material when it is subject to a static (unchanging) load. It occurs when one end of a material is fixed while the other end is twisted or rotated, resulting in stress and deformation within the material. Understanding static torsion is important in engineering and construction to ensure the structural integrity and stability of components.

How do you convert cmh to static pressure?

To convert volumetric flow rate in cubic meters per hour (cmh) to static pressure in Pascals (Pa), you will need to know the characteristics of the fan or blower generating the flow. You'll need to refer to the fan curve provided by the manufacturer, which shows the relationship between the volumetric flow rate and the static pressure. By interpolating on the fan curve, you can determine the static pressure corresponding to the given flow rate in cmh.

What is the function of coefficient of static friction?

This coefficient of static friction is needed to find the frictional force between a body and a surface on which body has to move. If u (mu) is the coefficient of friction then uR gives the frictional force between moving body and surface. There is no unit for coefficient of friction. Here R is reaction which equals to the weight of the body

How fast would you have to throw a baseball to dislodge a frisbee in a tree 12m above your head?

To dislodge a frisbee in a tree 12m above your head, you would need to throw a baseball at a speed greater than the escape velocity of Earth, which is around 11.2 km/s. This is because you have to overcome not only gravity but also the friction and drag forces acting on the baseball. In reality, it's practically impossible to achieve this speed with a human arm.

Why a force acting on a body is called a sliding vector?

A force acting on a body is not typically called a "sliding vector." The term "sliding vector" may refer to a force vector that is parallel to a surface, which could cause the body to slide if it overcomes static friction. The force could also be called a frictional force if it opposes the relative motion of the body.

What are the various properties of a substance that determine its heat capacity?

The specific heat capacity, density, and mass of a substance are properties that determine its heat capacity. Specific heat capacity is the amount of heat required to raise the temperature of one unit mass of the substance by one degree Celsius. Density and mass affect how much heat the substance can store and how quickly it can absorb or release heat.

What is sprial spring?

A spiral spring is a type of mechanical spring in the form of a coil or helix, typically made of metal wire, that can store and release mechanical energy when compressed or stretched. It is commonly used in various applications such as in automotive suspension systems, watches, and toys.

What is the force you need to use in order to lift a mass of 40kilogram?

-- If the 40 kilogram mass is on the Earth, you need about 392 newtons (88.2 pounds).

-- If the same mass is on the moon, you need about 64.9 newtons (14.6 pounds).

-- If it's inside a space ship with you and your ship is coasting, then you can

lift it with ANY force, no matter how large or small. In fact, after you lift it, you'll

need to apply force in the opposite direction in order to make it stop lifting.

Is heat strengthened the same as annealed?

No, heat strengthened glass and annealed glass are different. Heat strengthened glass is treated with heat to improve its strength, while annealed glass is cooled slowly to relieve internal stresses and make it more uniform. Heat strengthened glass is generally stronger than annealed glass.

How to calculate force required to bend the pipe?

The force required to bend a pipe can be calculated using the formula F = (K × L × R) ÷ D, where F is the force in pounds, K is the constant for the material being bent, L is the length of the pipe being bent, R is the bend radius, and D is the material's spring back factor. The constant K and spring back factor D can be obtained from material properties tables or calculated experimentally.

Kinetic friction is best described as the frictional force that acts to?

oppose the motion of an object in contact with a surface. It is dependent on the nature of the surfaces in contact and the normal force pressing them together.

How is speed related to momentum?

Speed and momentum are related because momentum is the product of an object's mass and its velocity. In other words, momentum is directly proportional to an object's speed. This means that as an object's speed increases, its momentum also increases.