An airplane on a runway accelerates at 4.0 meters/second2 for 28.0 seconds before takeoff. how far does the plane travel on the runway before takeoff?

1568m

Explanation:

An airplane on a runway accelerates at 4.0 meters/second2 for 28.0 seconds before takeoff. How far does the plane travel on the runway before takeoff?

Motion is he change in position of an object with respect to time.

velocity:is the displacement change with respect to time

distance is

From newton's equation of motion

S=ut+1/2at^2

We assume that the airplane is starting from rest

at rest u ,initial velocity becomes 0

a, acceleration 4m/s^2

t, time=28secs

we superpose into the equation, we have

S=0*4+0.5*4*28^2

S=1568m

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: