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The momentum of a 75-kg dart is 9.00 kg*m/s east. What is the velocity of the dart? As with all problems involving vectors, remember to include the direction in your answer.
A boy pulls a 20-kg box by a 50N force at 37 degrees above a horizontal surface. The coefficient of kinetic friction among the box and the horizontal surface is 0.15, and the box is pulled over a distance of 25m. a) What is the work done by the boy? ..
determine the angle of deviation of a ray by a glass prism with a prism angle of 3o if the angle of incidence of the
A 1.85 book is sliding along a rough horizontal surface. At point A it is moving at 3.35 , and at point B it has slowed to 1.41. How much work was done on the book between A and B
The velocity of the wave traveling on a string is higher if you increase the length of the string (keeping the kind of string, and the tension of the string, unchanged)
Compute the expected sea level rise for the projected 4°C mean global temperature rise anticipated by 2100. The average depth of the ocean is 3790 m, but you will not consider this whole depth to be expanding. Instead you will only consider the ex..
A solid block is attached to a spring scale. When the block is suspended in air, the scale reads 21.1 N; when it is completely immersed in water, What is the volume of the block
q1. the sun falls on a concave mirror and forms an image 4.5 cm from the mirror. if an object 22 mm high is placed 12.7
A rock of mass 0.340 kg is spun horizontally at the end of a wire that is 1.00 m long and has a diameter of 1.00 mm. what is the Young's modulus of the wire
two loudspeakers are separated by 1.00 meters and are excited in phase by a 1200 hz sine wave. at what points on a line
A pencil is held perpendicular to the optical axis of a concave spherical mirror. The pencil is 81 cm from the center of the mirror, What is the magnification of the pencil's image
A constant force is applied to an object, causing the object to accelerate at 10 m/s2. What will the acceleration be if the force is halved? What will the acceleration be if the object's mass is halved?
The fastest-known served tennis ball was served by "Big Bill" Tilden in 1931, and its speed was measured to be 73 m/s .
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