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A Japan Airlines Boeing 747 accelerates from rest to lift-off speed of 78.51 m/s in 28.20 s. Each of the plane's two jet engines provides a forward force (thrust) of 101.00 kN.
What is the mass of the plane?
How far does the plane travel down the runway before lift-off?
two rooms, one at 30 degree Celsius and the other at 10 degrees Celsius, Calculate the total power output of lit light bulbs required in the warmer room
A car travels a straight road at 130 km/h for 30min then at 50 km/h for 10min. What is the average speed for the entire trip
A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of - 1.2 m/s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance.
Many people mistakenly believe that the astronauts that orbit Earth are "above gravity." Calculate g for space shuttle territory 150 km above Earth's surface. suppose Earth's mass is 6.0 1024 kg, and its radius is 6.38 106 m (6380 km). Your answer..
A woman passes through a revolving door with a tangential speed of 1.6m/s if she Is 70 m from the center door, what is the door angular speed
he plane is traveling horizontally at 150.0 m/s at a height of 70.0 m above the ground. Illustrate what horizontal distance does the package travel before striking the ground?
A rock of mass 33 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 242 N. What is the magnitude of the acceleration of rock.
The electric potential outside a charged conducting shpere is 200V, and 10.0 cm farther from the center of the sphere the potential is 150V. Determine the radius of the sphere
A double concanve lens has equal radii of curvature 15.1 cm. What is the index of refraction of the lens material
A parallel beam of light from a He-Ne laser, with wavelength of 644 nm, falls on two very narrow slits 0.05 mm apart. How far apart are the fringes in the center of the pattern on a screen 2.2m away.
A 4.1 g coin sliding to the right at 26.2 cm/s makes an elastic head-on collision with a 12.3 g coin that is initially at rest. Find the final velocity of the other coin
A positive charge moves in a region where the magnetic field is uniform, has a magnitude of 60 uT and points in the positive x direction. what is the radius of the resulting path
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