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Compare the effects of gravity and air resistance on a falling skydiver before and after she opens her parachute?
-- The force of gravity is unchanged before and after.-- The force of air resistance on the skydiver is greater before, and less after,because she is falling slower after the parachute opens.-- The effect on her of air resistance is greater after the parachute is open. Theincreased air resistance itself acts on the parachute, and its effect is transferredto the skydiver through her harness.
How is acceleration due to gravity be zero in a parachute?
In the case of a parachute, the person and parachute fall at a constant speed once the forces acting on them are balanced. This means that the net acceleration, including gravity, is zero. Gravity is still acting on the person and parachute, but it is balanced by the drag force exerted by the parachute, resulting in a constant speed descent.
How does a parachute know when your falling?
A parachute doesn't "know" when you're falling. It is deployed manually by the person jumping out of an aircraft or automatically by a mechanism that senses the descent speed and altitude. Once deployed, it slows down the person's fall by creating drag, allowing for a safer descent to the ground.
How does the weight of an object relate to how fast it falls with a parachute?
The weight of an object affects how quickly it can reach its terminal velocity when falling with a parachute. Heavier objects typically reach terminal velocity faster than lighter objects due to the greater force of gravity acting on them. However, once both objects reach terminal velocity, they will fall at the same constant speed regardless of their weight.
How long does it take for Coke to go flat once opened?
Once a can or bottle of Coke is opened, it typically takes about 2-4 hours for it to go flat. This is because carbonation escapes from the liquid when it is exposed to air.
What does this mean For Sale Parachute Only used once never opened small stain?
The joke is that the parachute did not open properly, and it is now stained with the initial user's blood.
Compare the effects of gravity and air resistance on a falling skydiver before and after she opens her parachute?
-- The force of gravity is unchanged before and after.-- The force of air resistance on the skydiver is greater before, and less after,because she is falling slower after the parachute opens.-- The effect on her of air resistance is greater after the parachute is open. Theincreased air resistance itself acts on the parachute, and its effect is transferredto the skydiver through her harness.
How is acceleration due to gravity be zero in a parachute?
In the case of a parachute, the person and parachute fall at a constant speed once the forces acting on them are balanced. This means that the net acceleration, including gravity, is zero. Gravity is still acting on the person and parachute, but it is balanced by the drag force exerted by the parachute, resulting in a constant speed descent.
What happens immediately after skydiver opens her parachute?
When her parachute opens, the air resistance increases. Now there is a resultant force going upwards on the parachute. The increase in air resistance occurs because when the parachute is opened there is a much larger surface area (than before) so the particles of air are much more likely to get 'caught up' in the parachute unable to pass easily, therefore creating more air resistance (an upwards force) and so slowing down the parachutist. NOTE: The parachutist does NOT move upwards after the parachute has opened, they just slow down. This effect comes from when a parachutist with a camera is filming opposite, they are still falling rapidly while the other person's parachute has opened, therefore passing them as they continue to freefall, and so the parachutist opposite appears to move upwards after opening the parachute.
Why a skyd Iver will fall with a constant speed after he open his parachute for a while?
A skydiver falls with a constant speed, known as terminal velocity, after opening their parachute because the force of gravity pulling them down is balanced by the drag force from the air resistance acting against their fall. Once the parachute is deployed, it increases the surface area, significantly enhancing air resistance. When these two forces equalize, the skydiver stops accelerating and descends at a steady speed. This balance between gravitational force and air resistance is what stabilizes the descent.
How do you open a parachute in battlefield Vietnam?
just hold the A button (Xbox 360) or X button (PS3) once you exited the plane until u hear a parachute sound. It won't let you deploy it when you are really close to the ground because there's not enough time so make sure you jump out high enough.
How do you store blueberries once opened?
One way to store blueberries once they have been opened is to give them a vinegar bath.
How long does buttermilk last in the fridge once opened?
Once opened, buttermilk typically lasts for about 2 weeks in the fridge.
How does a parachute know when your falling?
A parachute doesn't "know" when you're falling. It is deployed manually by the person jumping out of an aircraft or automatically by a mechanism that senses the descent speed and altitude. Once deployed, it slows down the person's fall by creating drag, allowing for a safer descent to the ground.
Do pickles need to be refrigerated once opened?
Yes, pickles should be refrigerated once opened to maintain their quality and prevent spoilage.
How long does relish last once opened?
Once opened, relish typically lasts for about 1 to 2 months when stored in the refrigerator.
Do you have to refrigerate velveeta before it is opened?
No. It is ultra-pasteurized , but once opened, must be refrigerated.
