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Two boats are heading away from shore. Boat 1 heads due north at a speed of 2.94 m/s relative to the shore. Relative to Boat 1, Boat 2 is moving 29.8° north of east at a speed of 1.69 m/s. A passenger on Boat 2 walks due east across the deck at a speed of 1.27 m/s relative to Boat 2. What is the speed of the passenger relative to the shore?
A light source emits a beam of photons, each of which has a momentum of 2.3 ?? 10??29 kg??m/s. What is the frequency of the photons
Consider the 642 N weights held by two cables shown. The left-hand cable had tension T2 and makes an angle of thelta2 with ceiling. The right-hand cable had tension 460 N and makes an angle of 47 degrees with the ceiling.
Discuss briefly centripetal acceleration, the speed and the force exerted by a ball attached to a string.
A diffraction grating of 6000 lines/cm is illuminated by monochromatic light. How far from the central maximum is the first order maximum
In a wire with a 1.67-mm2 cross-sectional area, 8.43 × 1020 electrons flow past any point during 3.87 s. What is the current in the wire
The surface charge density on an infinite charged plane is -1.5*10^-6 N/m^2, How far does the proton travel before reaching its turning point
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. Find the time it takes for the ball to fall from rest all the way to the ground
A bullet moving horizontally with a speed of 500 m/s strikes a sandbag and penetrates a distance of 10 cm. What is the average acceleration of the bullet while it is in the sand bag
A(n) 19_kg object floating in water has 0.24 of its volume above the surface of the water. What is the volume of the object
A satellite with mass 2200kg is initially in a circular orbit a distance 325km above the earth's surface. Due to air drag, the satellite's altitude decreases to 250km. Calculate the change in gravitational potential energy
question1a piece of wire with mass per unit length 78 runs horizontally at right angles to a horizontal magnetic field.
A woman weighs 180 lb. Determine the following her weight in newtons and her mass in kilograms
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