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Q. An airplane must reach a speed of 377mi/h in order to take off. If the runway is 403 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully?
Q. a) if the work necessary to stretch a slinky 1.000m is W=2.000J, what is the force constant for the slinky.
b) How much work is essential to stetxh the slinky from 1.000m to 2.000m.
c) Compare the work required to stretch the slinky from 1.000m to 2.000m to stetching the slinky 0.0 m to 1.0 m. describe the discrepancy.
A 3.20 kg block of wood sits on a table. A 2.50 g bullet, fired horizontally at a speed of 600 m/s, goes completely through the block, emerging at the speed of 180m/s. What is the speed of the block immediately after the bullet exits.
The magnitude of each force is 204 N, the force on the right is applied at the angle 29 and the mass of the block is 12kg. The coefficient of friction is 0.138. The acceleration of gravity is 9.8 m/s2. What is the magnitude of the resulting accelerat..
Assume a 64 kg boy and a 42 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3 m/s2, find out the magnitude of the acceleration of the boy toward girl.
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW. Find the energy consumption and area required by the solar cell
find the lowest frequency that make constructive interference.
assume a spherical planet P has a uniform density of 4.72*10^3 kg/m^3 and a radius R=3604 km. For a parcel that weighs 64 N on the surface of the (spherical) earth.
The tape is now wound back into the drum at angular rate. With what speed would the end of the tape move? (Note that our drawing specifies that a positive derivative of implies motion away from the drum. Be careful with your signs. The fact that the ..
A guitar string is 91.00cm long and has a mass of 3.6g. From the bridge to the support post (= L) is 60 cm, and the string is under a tension of 551 N.
What is magnitude of induced emf between the ends of beam
A cyclist is using cranks with a length of 17cm and a front sprocket of radius 10cm. while standing up she places her body weight onto the forward pedal. the crank is initially horizontal and the force in the pedal is equal to body weight. cyclist..
A 47 g golf ball is driven from the tee with an initial speed of 50.0 m/s and rises to a height of 24.8 m.
A student sits on a rotating stool holding two 3kg objects. When his arms are extended horizontally, the objects are 1m from the axis of rotation.
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