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An airplane undergoes the following displacements: First, it flies 66 km in a direction 30° east of north. Next, it flies 49 km due south. Finally, it flies 100 km 30° north of west. Using vector components, determine how far the airplane ends up from its starting point.
A boat crosses a river of width w=100 meter in which the current has a uniform speed of 1.35 m/s. Find the speed of the boat relative to a stationary observer on shore
An oscillator consists of a block of mass 0.800 kg connected to a spring. When set into oscillation with amplitude 34.0 cm, it is observed to repeat its motion every 1.000 s. Find the maximum force exerted on the block
Optimums Prime is flying straight up at 29m/s when he accidentally drops his mega-ray blaster and it falls67 m to the ground below. Compute how long it takes for his mega-ray blaster to hit the ground.
An automobile accelerates from rest for 20s with a constant acceleration of 1.5 m/s^2. What is its final velocity? How far does it travel in that time
Based upon these calculations, is it reasonable to assume that essentially any molecule a photon encounters in the body will be in its ground vibrational state? Its ground electronic state? Its ground rotational state?
The equation of a transverse wave traveling along a very long string is y = 7.20 sin(0.0782?x+ 3.62?t), where x and y are expressed in centimeters and t s in seconds. Determine (a) the amplitude, (b) the wavelength, (c) the frequency, (d) the speed
A girl is skipping stones across a lake. One of the stonesaccidentally ricochets off a toy boat that is initially at rest inthe water, What is the mass of the boat
A projectile is launched at 45.0 degrees with the horizontal. Its initial speed is 250. m/s. what is the speed and direction of the object when it lands
A factory worker pushes a 31.4 kg crate a distance of 5.00 m along a level floor by pushing downward at an angle of 28.0degrees below the horizontal. How much work is done on the crate by the force of friction
A 20 nC charge is moved from a point where V = 190 Volt to a point where V = -90 Volt. Determine how much work is done by the force that moves the charge
What is the magnitude of the electric field between two parallel plates 6.1mm apart if the potential difference between them is 150V
Two pianos each sound the same note simultaneously, but they areboth out of tune. How much time separates successive beats
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