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How much pressure is exerted on a desk which measures 24 inches deep and 30 inches long by the air column pushing with a weight of 1000 newtons?
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What is The force pushing on a surface divided by the area of that suface?
Pressure. (Note that the force must be perpendicular to the surface.) Pressure can my measured in Pascals (N/m2), psi (pounds/in2), atmospheres, or a few other units.
How does the upward force lift the airplane?
Lift: is also known as the upwards force. It helps to keep an airplane, aircraft, hovercraft, bird, etc. in the air by pushing it upwards. The wings of a bird or airplane are huge factors in how great the force of lift is. This is because the top of the wing is curved and the bottom is flat. When the air is traveling on top of the wing it goes faster creating a low pressure. When the air passes under the wing, it goes slower creating a high pressure thus pushing the object upwards.
Real world examples of mechanical force?
-- pistons pushing a drive shaft around-- drive shaft pushing wheels around-- tire treads pushing against the ground-- pushing bicycle pedals-- shoe-soles pushing back against the ground-- seat of a chair pushing up against one's butt-- twisting a door-knob-- pushing the button of a pen down to extend the point-- rotating the spoon to mix the coffee in the cup-- closing the jaw to shred the bite of meat-- rotating the wrench to tighten the nut-- squeezing the handles together to crack the nut-- pushing the key down to type the character-- pushing the mouse finger down to make the click-- pushing the DTMF button down to 'dial' the number-- lifting the flat part of the buckle to release the seat belt-- pulling the rope to raise the flag-- lifting the shovel to move the snow-- pulling the string to untie the shoe-- pushing the mower to move to another patch of grassThere are probably a few more.
What are two differences between force and pressure?
A force is an application of energy that tries to make something change its motion. A good example of this is when you put a ball on a level floor and give it a push. The push applies a force to the ball, which then changes from not moving to rolling across the floor. To stop the ball, you would apply a force in the opposite direction and make it come to rest. Sometimes a force doesn't make something move because it's exactly matched by an opposite force. When you sit on a chair, your weight is a force acting on the chair: the chair pushes back just as hard onto you, so you don't fall through the chair. The two forces (your weight and the chair's pushing back) balance out.The units of force are pounds (in the US) or Newtons (in the Metric system) Pressure is a force spread out over an area that it acts upon. For example, lets say I was walking along and I stepped onto a one-inch square piece of brick on the sidewalk. I weigh around 175 pounds, so my body would apply a 175 pound force to that piece of brick. The sidewalk would also feel that force transmitted through the piece of brick, spread out over the one square inch of surface the brick has in contact with the sidewalk. The pressure is the force divided by the area it acts on (P = Force/Area), so in this case the pressure applied to the sidewalk is 175 pounds per square inch. If that piece of brick were 5 inches square, its area would be 25 square inches: the pressure applied to the sidewalk would be 175 pounds/25 square inches = 7 pounds per square inch. The same force is acting on the sidewalk: it's just spread out over more brick surface. Pressures can have units of pounds per square inch, or Newtons per square meter (called Pascals). Liquids also have pressure which depend on their weight, how closely packed their molecules are, and their temperature. This pressure is caused by the molecules of the liquid bouncing agains a surface they're in contact with - like the inside of a jar, or the inner surface of an eye. If a liquid has a pressure of one pound per square inch, every square inch of surface it presses against has one pound of force spread over it. The total amount of force the pressure exerts on the surface is found by multiplying the pressure by the area of the surface it is pushing on (F = Pressure x Area). The one pound per square inch from before pushing on ten square inches of surface adds up to a total force of ten pounds trying to push whatever the surface is attached to. So, a force is essentially a push, and pressure is a push spread out over a surface.
Why do toy cars go faster on inclined planes?
Because you are pushing your force to it(with your hand) while a plane its got nothing pushing it exept for gas
The measure of force with which the air molecules are pushing on a surface?
it is AIR PRESSURE
Is air pressure a noun?
Yes. The term is a compound noun, and both air and pressure are nouns. Air pressure is the measure of the force exerted by the weight of the atmosphere pushing down on the Earth.
Use this formula to compute the pressure of air pushing down with force of 25 newtons over an area of 5 meters?
5
Would you expect the the pressure exerted by water to be greater or less than the pressure exerted by the same amount of air?
water is more dense than air and it has atmospheric pressure also pushing down on it to make it have greater pressure than air.
Which term is a pushing force exerted by solids.?
compression.
How and why do temperature and pressure vary with ocean depth?
At sea level,the pressure of the atmosphere pushing down on the ocean surface is reffered to as 1 atmosphere of pressure.An atmosphere is the pressure exerted on a surface at sea level by the column of air above it.As you go below the oceans surface ,the pressure increases because of the force of the water molecules pushing down.
What is a demonstration of newtons first law?
That you are pushing the earth down while the earth is pushing you up, so you stay where you are.
Two forces act on the same object. One force is pushing due east with a force of 6 newtons and the other is pushing due north at 8 newtons. What is the resulting force?
10 newtons NE. a little more north than east
What is the air pressure?
air pressure is the firce exerted by moving air moleculesAir pressure is the air around you. Air pressure can pushing every where so the air from the top only dosent squish you into a pancake. Pressure is defined as force per unit area. The standard unit for pressure is the Pascal, which is a Newton per square meter.
A 20 N falling object encounters 4 N of air pressure what is the magnitude of the net force on the object?
The object experiences 20 newtons pulling it down due to gravity. But it also experiences 4 newtons air resistance pushing it up. 20 - 4= 16 newtons net downward force on the object.
Which instrument measures a pulling or pushing force?
horsepower
What is the force of air molecule's pushing on an area?
The pressure of the air. This is traditionally expressed (at least in the US and UK) in pounds per square inch, but with the SI system it is in Newtons per square meter, or some multiple of this.
