Homework Answers
13) A bridge of length 50.0 m and mass of 9.50 x 104 kg is supported...
13) A bridge of length 50.0 m and mass of 9.50 x 104 kg is supported by piers at each end of the bridge. A truck of mass 3.50 x 104 kg is located 12.0 m from one end. What are the forces on the bridge at the points of support?
002 (part 1 of 2) 10.0 points The uniform diving board has a mass of 29 kg 1.2 m -3.4 m- А В Find the force on the supp...
002 (part 1 of 2) 10.0 points The uniform diving board has a mass of 29 kg 1.2 m -3.4 m- А В Find the force on the support A when a 68 kg diver stands at the end of the div- ing board The acceleration of gravity is 9.81 m/s2 Answer in units of kN 003 (part 2 of 2) 10.0 points Find the force on the support B at that
007 10.0 points A 6 kg bowling bal s lted 2 m into astorage rack The...
007 10.0 points A 6 kg bowling bal s lted 2 m into astorage rack The acceleration of gravity is 9.8 m/s Calculate the increase in the ball's potential energy Answer in units of J 008 10.0 points Shawn and his bike have a total mass of 0.6kg. Shawn rides his bike 2 km in 14.5 min at a constant velocity The acceleration of gravity is 9.8 m/s What is Shawn's kinetic energy? Answer in units of J.
007 (part 1 of 2) 10.0 points A 0.091 kg meter stick is supported at its...
007 (part 1 of 2) 10.0 points A 0.091 kg meter stick is supported at its 40 cm mark by a string attached to the ceiling. A 0.568 kg object hangs vertically from the 5.75 cm mark. A second mass is attached at another mark to keep it horizontal and in rotational and translational equilibrium. If the tension in the string attached to the ceiling is 16.9 N, find the value of the sec- ond mass. The acceleration due to...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s2. The acceleration...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 points If the same elevator accelerates downwards with an acceleration of 1.2 m/s, what is the upward force exerted by the elevator floor on the passenger? Answer in units of
010 10.0 points A weight (with a mass of 26 kg) is suspended from a point...
010 10.0 points A weight (with a mass of 26 kg) is suspended from a point near the right-hand end of a uni- form boom with a mass of 25 kg. To support the uniform boom a cable runs from this same point to a wall (the left-hand vertical coordi- nate in the figure) and by a pivot on the same wall at an elevation of 6 m 10 9 8 25 kg 6 4 2 26 kg 012 3...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s The acceleration...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 point:s If the same elevator accelerates downwards with an acceleration of 1.2 m/s2, what is the upward force exerted by the elevator floor on the passenger? Answer in units of N
009 10.0 points A weight (with a mass of 100 kg) is suspended from a point...
009 10.0 points A weight (with a mass of 100 kg) is suspended from a point at the right-hand end of a uni form boom with a mass of 26 kg. A horizontal cable at an elevation of 5 m is attached to the wall and to the boom at this same end point The boom is also supported by a pivot (at the origin of the coordinate axes) on the same wall 10 7 6 т 26 kg 100...
004 10.0 points A 2.9 kg block supported by a string rests on a frictionless incline....
004 10.0 points A 2.9 kg block supported by a string rests on a frictionless incline. The length of the string is 0.7 m and its mass of 4.3 g < 2.9 kg. . 0 -0.7 m u=0 56° 2.9 kg Find the time it takes a transverse wave to travel from one end of the string to the other. The acceleration of gravity is 9.8 m/s. Answer in units of ms.
10.0 points The horizontal surface on which the block of 005 mass 4.1 kg slides is...
10.0 points The horizontal surface on which the block of 005 mass 4.1 kg slides is frictionless. The force of 34 N acts on the block in a horizontal direction and the force of 102 N acts on the block at an angle as shown below. 60° 34 N 4.1 kg What is the magnitude of the resulting ac- celeration of the block? The acceleration of gravity is 9.8 m/s2 102 N
13) A bridge of length 50.0 m and mass of 9.50 x 104 kg is supported by piers at each end of the bridge. A truck of mass 3.50 x 104 kg is located 12.0 m from one end. What are the forces on the bridge at the points of support?
002 (part 1 of 2) 10.0 points The uniform diving board has a mass of 29 kg 1.2 m -3.4 m- А В Find the force on the support A when a 68 kg diver stands at the end of the div- ing board The acceleration of gravity is 9.81 m/s2 Answer in units of kN 003 (part 2 of 2) 10.0 points Find the force on the support B at that
007 10.0 points A 6 kg bowling bal s lted 2 m into astorage rack The acceleration of gravity is 9.8 m/s Calculate the increase in the ball's potential energy Answer in units of J 008 10.0 points Shawn and his bike have a total mass of 0.6kg. Shawn rides his bike 2 km in 14.5 min at a constant velocity The acceleration of gravity is 9.8 m/s What is Shawn's kinetic energy? Answer in units of J.
007 (part 1 of 2) 10.0 points A 0.091 kg meter stick is supported at its 40 cm mark by a string attached to the ceiling. A 0.568 kg object hangs vertically from the 5.75 cm mark. A second mass is attached at another mark to keep it horizontal and in rotational and translational equilibrium. If the tension in the string attached to the ceiling is 16.9 N, find the value of the sec- ond mass. The acceleration due to...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 points If the same elevator accelerates downwards with an acceleration of 1.2 m/s, what is the upward force exerted by the elevator floor on the passenger? Answer in units of
010 10.0 points A weight (with a mass of 26 kg) is suspended from a point near the right-hand end of a uni- form boom with a mass of 25 kg. To support the uniform boom a cable runs from this same point to a wall (the left-hand vertical coordi- nate in the figure) and by a pivot on the same wall at an elevation of 6 m 10 9 8 25 kg 6 4 2 26 kg 012 3...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 point:s If the same elevator accelerates downwards with an acceleration of 1.2 m/s2, what is the upward force exerted by the elevator floor on the passenger? Answer in units of N
009 10.0 points A weight (with a mass of 100 kg) is suspended from a point at the right-hand end of a uni form boom with a mass of 26 kg. A horizontal cable at an elevation of 5 m is attached to the wall and to the boom at this same end point The boom is also supported by a pivot (at the origin of the coordinate axes) on the same wall 10 7 6 т 26 kg 100...
004 10.0 points A 2.9 kg block supported by a string rests on a frictionless incline. The length of the string is 0.7 m and its mass of 4.3 g < 2.9 kg. . 0 -0.7 m u=0 56° 2.9 kg Find the time it takes a transverse wave to travel from one end of the string to the other. The acceleration of gravity is 9.8 m/s. Answer in units of ms.
10.0 points The horizontal surface on which the block of 005 mass 4.1 kg slides is frictionless. The force of 34 N acts on the block in a horizontal direction and the force of 102 N acts on the block at an angle as shown below. 60° 34 N 4.1 kg What is the magnitude of the resulting ac- celeration of the block? The acceleration of gravity is 9.8 m/s2 102 N
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