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A jet plane lands with a velocity of +103 m/s and can accelerate at a maximum rate of -5.00 m/s2 as it comes to rest. From the instant it touches the runway, what is the minimum time needed before it can come to rest?
A long straight wire carries a current I1 = 3.2 A and is a distance h = 12.2 cm from a rectangular current loop that carries a current I2 = 1.2 A, What is the force exerted by the current loop on the wire
A 2200 kg sport utility vehicle travelling at 86 km/h can be stopped in 0.15 s if it hits a concrete wall. Presume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of car both before and after the crash, and..
An object weighs 294N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 240N. When it is immersed in oil, it weighs 258N.
A spring with spring constant 13 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 8.5cm and free. The ball makes 26 oscillations in 18 s seconds.
A 1830 kg car traveling at 12.9 m/s collides with a 2980 kg car that is initally at rest at a stoplight. find the coefficient of kinetic friction between the cars and the road
A telescope has magnification of 40 and length of 1230mm. What are the focal lengths of the eyepeice
The armature of an arc generator has 200 turns. Each turn is a rectangular loop with a cross section area of 0.02m^2. What is the magnetic field strength
A 120-V fish tank heater has a power rating of 112 W. Calculate the resistance of the heater and Calculate the current through the heater
What is the length of a box in which the minimum energy of an electron is 1.1 x 10^-18J
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 52° C. What is the temperature coefficient of resistivity
A heat engine using a diatomic ideal gas goes through the following closed cycle: Isothermal compression until the volume is halved. What is the thermal efficiency of this heat engine
question1imagine you are on a planet similar to earth where an acceleration of gravity is approximately 10 ms2.the
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