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An air-traffic controller observes two airplane on his radar screen. The first is at altitude 850 meter, horizontal distance 19.8 kilometer and 24.0 degree south of west. The second airplane is at altitude 1200 meter, horizontal distance 17.3 kilometer and 22.0 degree south of west. Calculate the distance between the two airplane? (Place the x axis west, the y axis south, and the z axis vertical.)
why the mass of the dishwater is large enough. If vector B is added to C = 2.0 ihat + 3.0 jhat, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of C. What is the magnitude of vector B.
A race car has a mass of 706 kg. Itstarts from rest and travels 42.0 m in3.0 s. What net force is exerted on it
A “synchronous” satellite, which always re- mains above the same point on a planet’s equator, is put in orbit about a planet similar to Jupiter. This planet rotates once every 6.5 h, has a mass of 1.8 × 1027 kg and a radius of 6.99 × 107 m.
the normal human eye has maximum visual acuity with a pupil size of about 3 mm. for larger pupils acuity decreases due
Protons can escape from the surface of the sun if their kinetic energy is sufficient to overcome the gravitational potential energy. a) Calculate the minimum speed necessary for escape
the electric field at point p is zero. does that mean that the electric potential at that point must also be zero? the
You walk 100 m to the north, and then you turn 70degrees to your right and then walk another 50 m. What is the magnitude of your total displacement
A block of mass 2.50 kg is pushed 2.60 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0ª below the horizontal. Determine the work done by the normal force exerted by the table
find the moment of inertia of solid cylinder of radius a height h and mass m about the axis of the cylinder. hint this
A healthy heart pumps about 70 ml of blood in one heart beat. The average pressure exerted is about 100 mm-Hg and there are 70 heartbeats in a minute. What is the average power output of the heart?
A 1500 car travelling at 26 suddenly runs out of gas while approaching the valley that looks like an inverted hump. 12m at the left where the care runs out of gas and 19 m at the right were it is headed. What will be the car's speed as it coasts into..
Find out direction and magnitude of force
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