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KULLI IV. punca When a person in a benchpress gently lowers the bar on to their...
3. When a 60 kg person gets into a 300 kg boat the boat sinks about...
3. When a 60 kg person gets into a 300 kg boat the boat sinks about 5 cm lower in the water. (a) Assuming the buoyant force of the water on the boat behaves like a Hookian spring find the effective spring constant of the boat water system. 12000 Nm F-mp (b) The boat and person gently bob up and down in simple harmonic motion. Find the natural frequency of bobbing. (c) When the person looks over the side of...
A bar has four forces, all of the same magnitude, exerted on it, as shown. What...
A bar has four forces, all of the same magnitude, exerted on it, as shown. What is the sign of the torque about the axis of rotation? Use the sign convention shown. axis O not enough information O torque is zero O toque is positive Otorque is negative
When the mean value of the dependent variable is independent of variation in the independent variable,...
When the mean value of the dependent variable is independent of variation in the independent variable, the slope of the regression line is a. zero. b. positive. c. negative. d. infinite.
The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine...
The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine the initial angular acceleration a of the bar when it is released from rest in a position where the bar has been rotated clockwise 33° from the position shown. Neglect any sag of the spring, whose mass is negligible. The angular acceleration is positive if counterclockwise and negative if clockwise. The mass m of the bar is 18 kg, the length / is 305...
A farsighted person has a near point of 75 cm rather the normal 25 cm. What...
A farsighted person has a near point of 75 cm rather the normal 25 cm. What strength lens, in diopters, should be prescribed to correct this vision problem? Object , o = 25cm, image, i= -75cm(negative, in front of lens) Martin is severe myopia, with a far point of 15cm. he wants to get a glass that he ‘ll wear while using his computer, whose screen is 75cm away. What refractive power will these glasses required? Object, o=75 cm, image,...
A rectangular loop of wire with sides H = 29 cm and W = 55 cm...
A rectangular loop of wire with sides H = 29 cm and W = 55 cm carries current l2 = 0.288 A. An infinite straight wire, located a distance L = 20 cm from segment ad of the loop as shown, carries current ly = 0.691 A in the positive y-direction. 1) What is Fad,x, the x-component of the force exerted by the infinite wire on segment ad of the loop? N Submit 2) What is Fbcx, the x-component of...
A rectangular loop of wire with sides H 22 cm and W- 73 cm carries current...
A rectangular loop of wire with sides H 22 cm and W- 73 cm carries current 12 0.397 A. An infinite straight wire, located a distance L 21 cm from segment ad of the loop as shown, carries current l0.757 A in the positive y-direction 1) What is Fad,x, the x-component of the force exerted by the infinite wire on segment ad of the loop? 6.3E-8 N submit 2) What is Fbc,x, the x-component of the force exerted by the...
The cross-section of a glass lens with an index of refraction "1.5", is shown below. 1.16...
The cross-section of a glass lens with an index of refraction "1.5", is shown below. 1.16 cm 0.7 cm Administer Determine the magnitude of the focal length f using the small angle approxima- tion. Answer in units of cm. This lens is 1. non-focusing since the focal length is infinite. 2. convergent since the focal length is negative. 3. non-focusing since the focal length is zero. 4. divergent since the focal length is positive. 5. convergent since the focal length...
A 76.0 kg person is riding in a car moving at 17.0 m/s when the car...
A 76.0 kg person is riding in a car moving at 17.0 m/s when the car runs into a bridge abutment. (Assume the initial velocity is in the positive direction.) (a) Calculate the average force (in N) on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (Indicate the direction with the sign of your answer.) (b) Calculate the average force (in N) on the person if he is stopped by an...
A 94.0 kg person is riding in a car moving at 21.0 m/s when the car...
A 94.0 kg person is riding in a car moving at 21.0 m/s when the car runs into a bridge abutment. (Assume the initial velocity is in the positive direction.) Calculate the average force (in N) on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (Indicate the direction with the sign of your answer.) 2072700 X N (a) Cale (b) Calculate the average force (in N) on the person if he...
3. When a 60 kg person gets into a 300 kg boat the boat sinks about 5 cm lower in the water. (a) Assuming the buoyant force of the water on the boat behaves like a Hookian spring find the effective spring constant of the boat water system. 12000 Nm F-mp (b) The boat and person gently bob up and down in simple harmonic motion. Find the natural frequency of bobbing. (c) When the person looks over the side of...
A bar has four forces, all of the same magnitude, exerted on it, as shown. What is the sign of the torque about the axis of rotation? Use the sign convention shown. axis O not enough information O torque is zero O toque is positive Otorque is negative
The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine the initial angular acceleration a of the bar when it is released from rest in a position where the bar has been rotated clockwise 33° from the position shown. Neglect any sag of the spring, whose mass is negligible. The angular acceleration is positive if counterclockwise and negative if clockwise. The mass m of the bar is 18 kg, the length / is 305...
A rectangular loop of wire with sides H = 29 cm and W = 55 cm carries current l2 = 0.288 A. An infinite straight wire, located a distance L = 20 cm from segment ad of the loop as shown, carries current ly = 0.691 A in the positive y-direction. 1) What is Fad,x, the x-component of the force exerted by the infinite wire on segment ad of the loop? N Submit 2) What is Fbcx, the x-component of...
A rectangular loop of wire with sides H 22 cm and W- 73 cm carries current 12 0.397 A. An infinite straight wire, located a distance L 21 cm from segment ad of the loop as shown, carries current l0.757 A in the positive y-direction 1) What is Fad,x, the x-component of the force exerted by the infinite wire on segment ad of the loop? 6.3E-8 N submit 2) What is Fbc,x, the x-component of the force exerted by the...
The cross-section of a glass lens with an index of refraction "1.5", is shown below. 1.16 cm 0.7 cm Administer Determine the magnitude of the focal length f using the small angle approxima- tion. Answer in units of cm. This lens is 1. non-focusing since the focal length is infinite. 2. convergent since the focal length is negative. 3. non-focusing since the focal length is zero. 4. divergent since the focal length is positive. 5. convergent since the focal length...
A 94.0 kg person is riding in a car moving at 21.0 m/s when the car runs into a bridge abutment. (Assume the initial velocity is in the positive direction.) Calculate the average force (in N) on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (Indicate the direction with the sign of your answer.) 2072700 X N (a) Cale (b) Calculate the average force (in N) on the person if he...
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