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Example 14.8 The motor M of the hoist operates with an efficiency of E 0.85. Determine...
Problem (3) A motor M and a frictionless pulley-cable system are used to lift the 850...
Problem (3) A motor M and a frictionless pulley-cable system are used to lift the 850 lb crate shown at a constant acceleration. The motor has an efficiency of E = 0.6 and the input power to it is 92 hp at the instant when the load has been hoisted s = 15 ft starting from rest. Determine the tension force in the cable. Neglect the mass of the pulleys and cable.
Learning Goal: To use the principle of work and energy to determine characteristics of a mass...
Learning Goal:
To use the principle of work and energy to determine
characteristics of a mass being pulled up an incline and determine
the power that must be supplied to the system when the efficiency
of the input system is considered.
As shown, a 62 kg crate is pulled up a θ = 65 ∘incline by a
pulley and motor system. Initially at rest, the crate is pulled s =
2.9 m up along the incline. Undergoing constant acceleration, the...
Question 1 Question 2: Question 3: Question 4: Question 5: Question 6: Question 7: Question 8:...
Question 1
Question 2:
Question 3:
Question 4:
Question 5:
Question 6:
Question 7:
Question 8:
Please number each question. Thank you
Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...
* This is all the information given QUESTION 1 (iii,iv) PLEASE!!!: Examine the car performance when the angle of both the front and rear wings is set to θ = 10◦. In all the analysis that follows ign...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
PLEASE EXPLAIN ALL ANSWERS 3 kg vertically cing is 10 kg g is used to frictionless...
PLEASE EXPLAIN ALL ANSWERS
3 kg vertically cing is 10 kg g is used to frictionless maximum these ag is most 11. Three blocks, A, B, and C. of masses 1, 2, and 3 kg, respectively, are initially at rest on a frictionless surface as indicated in the figure above. What force has to be applied on block C 5= 200 mis? to accelerate the three blocks at 2 m/s? (A) 0.33 N (2) +22) 4362) 16 V=20mis (B) 1.5...
* This is all the information given QUESTION 1 (iii,iv) PLEASE!!!: Examine the car performance when...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
Problem (3) A motor M and a frictionless pulley-cable system are used to lift the 850 lb crate shown at a constant acceleration. The motor has an efficiency of E = 0.6 and the input power to it is 92 hp at the instant when the load has been hoisted s = 15 ft starting from rest. Determine the tension force in the cable. Neglect the mass of the pulleys and cable.
Learning Goal:
To use the principle of work and energy to determine
characteristics of a mass being pulled up an incline and determine
the power that must be supplied to the system when the efficiency
of the input system is considered.
As shown, a 62 kg crate is pulled up a θ = 65 ∘incline by a
pulley and motor system. Initially at rest, the crate is pulled s =
2.9 m up along the incline. Undergoing constant acceleration, the...
Question 1
Question 2:
Question 3:
Question 4:
Question 5:
Question 6:
Question 7:
Question 8:
Please number each question. Thank you
Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
PLEASE EXPLAIN ALL ANSWERS
3 kg vertically cing is 10 kg g is used to frictionless maximum these ag is most 11. Three blocks, A, B, and C. of masses 1, 2, and 3 kg, respectively, are initially at rest on a frictionless surface as indicated in the figure above. What force has to be applied on block C 5= 200 mis? to accelerate the three blocks at 2 m/s? (A) 0.33 N (2) +22) 4362) 16 V=20mis (B) 1.5...
* This is all the information given
QUESTION 1 (iii,iv) PLEASE!!!:
Examine the car performance when the angle of both the front and
rear wings is set to θ = 10◦. In all the analysis that follows
ignore frictional losses other than drag. Determine:
(iii) What is the maximum speed the vehicle can safely corner a
bend with R = 30 m (ans. 108Km/hr).
What is the power required at this speed? (ans. 27.8KW)
(iv) What is the maximum speed...
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