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A jet plane needs a significant amount of kinetic energy for takeoff, which is generated by the engines providing thrust to overcome drag forces and lift the aircraft off the ground. Additionally, potential energy is required to lift the plane against gravity. The engines must work at full power during takeoff to generate enough speed and lift for the aircraft to become airborne.
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Why is potential energy negative?
Potential energy can be negative because it is a measure of the work that would need to be done to bring an object from a reference point to its current position. If the object is already at a lower energy state than the reference point, the potential energy is considered negative.
How do you find particles maximum speed in a potential energy diagram?
To find a particle's maximum speed in a potential energy diagram, you need to locate the point in the diagram where the potential energy curve is at its lowest. The maximum speed of the particle at that point is determined by the total mechanical energy it possesses, which is the sum of its kinetic and potential energies. At the point where the potential energy is lowest, the kinetic energy is at its maximum, indicating the particle's maximum speed.
When calculating potential and kinetic energy what is required for both calculations?
To calculate potential energy, you need to know the object's mass, acceleration due to gravity, and height above a reference point. For kinetic energy, you need the object's mass and velocity. Potential energy is energy stored in an object's position, while kinetic energy is energy due to motion.
Why are airplane flaps not used at cruising speeds?
Airplane flaps are used during takeoff and landing to increase lift and drag, which helps the plane to reduce speed for landing and take off. At cruising speeds, the airplane is already flying efficiently and has no need for the extra lift and drag provided by the flaps.
What does negative potential energy signify in the context of physics?
Negative potential energy in physics signifies that the object is in a lower energy state compared to a reference point. This means that work would need to be done to move the object to a higher energy state.
Why do plane windows need to be open for takeoff?
Plane windows do not need to be open for takeoff. In fact, it is important for plane windows to remain closed during takeoff and landing for safety reasons. The cabin needs to be pressurized to ensure the comfort and well-being of passengers, and open windows would disrupt this pressurization.
Why do plane windows need to be open during takeoff and landing?
Plane windows need to be open during takeoff and landing to allow passengers and crew to see outside in case of an emergency evacuation. This helps them assess the situation and choose the safest exit route.
Do planes need pilots?
yeah there are lot of procedures, checklists and other stuff that the pilot or te copilot make while the pilot or the copilot flies the plane during the landing or during takeoff
Why are you asked to leave up the window shutters when taking off in a plane?
The window shutters or blinds have to be in an UP or OPEN position during takeoff and landing for the following reason. In the event of an accident, the rescuers need to be able to see inside the plane to assess damage and injury. With the shutters closed, this is not possible
How much money is it to take a plane ride to Bulgaria for 1 person?
Need point of origin to calculate.
Why do airplane windows need to be open during takeoff and landing?
Airplane windows need to be open during takeoff and landing to allow passengers to see outside and help maintain orientation in case of an emergency evacuation.
Can three points determined a plane?
Yes, three points determine a plane unless they are in a straight line. A plane is two dimensions a line is only one. You need a third point(not in the line) to define a plane.
What is the popularity of helicopter?
It can takeoff or land in where ever the position it was.... it don't need a runway...
A plane curve with each point on the curve equidistant fom fixed point at the center of figure?
A circle.You don't even need the words " ... at the center of the figure".
Why do window shades need to be up for takeoff on an airplane?
Window shades need to be up for takeoff on an airplane to allow natural light to enter the cabin in case of an emergency, helping passengers and crew see outside and assess the situation.
What is the point of biomass?
It is a potential source of energy that is readily available where there are people who need it.
How do you get the coordinates in the Cartesian plane given the radius?
you need also an angle (theta) besides the radius. Then assuming that the starting point of both plane and Cartesian plane is the same: x=R*cos(theta), y=R*sin(theta)
