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The surface area of an airplane wing is 35m^2. The average velocity of the air flow above the wing is 230mph and that of the air flow below the wing is 190mph. What is the lift force on the wing?
question at a certain point during the reaction the h2 0.15 n2 0.10 and nh3 0.020. has the reaction reached
q1. when two tuning forks of 128 hz and 149 hz respectively are sounded simultaneously how various beats per second are
An astronaut is connected to her spacecraft by a 25-m-long tether cord as she and the spacecraft orbit Earth in a circular path at a speed of 3.0 x103 m/s. At one instant, the voltage gauged between the ends of a wire embedded in the cord is gauged t..
On the planet Newtonia, a simple pendulum having a bob with a mass of 1.33kg and a length of 186.2cm takes 1.45s , when released from rest, What is the mass of the planet Newtonia
A mass of 0.3 kg is connected to a mass less spring with a force constant k=20 N/m. The system oscillates horizontally on a frictionless surface with amplitude of 4 cm. What is the velocity of the mass when it is 2 cm away from its equilibrium positi..
A rope is used to pull a 5.57 kg block at constant speed 2.78 m along a horizontal floor. determine the work done by the rope's force
A volleyball is spiked so that its incoming velocity of +4.0m/s is changed to an outgoing velocity of -21 m/s. What impluse does the player apply to the ball
An engineer is designing a spring to be placed at the bottom of an elevator shaft. If the elevator cable must happen to break when the elevator is at a height h above the top of the spring, compute the value that the spring constant k should have so ..
A machine that makes transformers can only wind the coils with a single specific number density. what is length of the output coil
A runaway railroad car, with mass 30 x 10^4 kg, coasts across a level track at 1.5 m/s when it collides with a spring loaded bumper at the end of the track, What is the maximum displacement of the spring after the collision
A solid disk rotates in the horizontal plane at an angular velocity of 0.042 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.080 kg·m2.
A 5.78 cm long rod in the shape of a rectangular solid has cross section dimensions 28.7 mm x 42.6 mm. What is the current in the block
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