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Q. An airplane needs to reach a velocity of 456 km/h to take off. On a 2000 m runway, what is the minimum acceleration necessary for the plane to take flight?
Q. A car traveling at 21.0 runs out of gas while traveling up a 21.0 slope.How far up the hill will it coast before starting to roll back down?
A long wire lying along the x-axis carries a current of 2.8 A in the +x direction. There is a uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along the cartesian coordinate axes') in units of..
According to the Guinness Book of World Records (1990 edition, p. 169), the highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15 cm (5.9 in) long. Imagine the speed quoted is that of the end of the rod.
The radius of Venus's orbit is 0.72 times that of Earth's orbit. How much stronger is the Sun's gravitational field at Venus than at the earth.
What volume of water at 0°C can a freezer make into ice cubes in 1.4 hours, if the coefficient of performance of the cooling unit is 8.0 and the power input is 1 kilowatt.
When subject to a steady acceleration of 0.800 g, the object must be located 0.600cm from its equilibrium position. Find the force constant required for the spring.
Estimate the capacitance of the series combination of capacitors shown.
A chair of weight 70 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 37.0 directed at the angle of 42 below the horizontal and the chair slides along the floor.
A 3 kg object id released from rest at a height of a 5 meter curved frictionless ramp. At the foot of the ramp is a spring force constant of k= 400n/m the object slides down the ramp and onto the spring compressing it to the distance x before comi..
Create a graph corresponding to the stone vertical velocity
An astronaut on a small planet wishes to measure the local value of g by timing pulses travelling down a wire which has a large object suspended from it. Imagine the wire of mass 3.80 g is 1.60 m long and has a 3.00-kg object suspended from it. A pul..
Two crates, of mass 75.0 kg and 109 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.0 kg crate. What is the force the each crate exerts on the other.
A package is dropped from a passing plane (moving in the horizantal direction) and produces a projectile motion as it is falling to the ground. If it takes the package only 32.12 seconds until it hits the ground, how far above the ground was the plan..
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