The above diagram shows a disk which is spinning counter clockwise at a constant speed. A wad of gum is stuck to the sur
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The above diagram shows a disk which is spinning counter clockwise at a constant speed. A wad of gum is stuck to the sur
Question 2 (1 point) What is the direction of the net force on an object that is travelling in a circle at a constant speed on a horizontal frictionless surface? the net force is zero tangential to the circle in the direction of travel radially outward radially inward Question 3 (1 point) The carriages on a Ferris wheel travel at a speed of 1.86 m/s. If the wheel has a radius of 6.25 m, what is its period of rotation?
Question 3 (1 point) The carriages on a Ferris wheel travel at a speed of 1.86 m/s. If the wheel has a radius of 6.25 m, what is its period of rotation? 3.48 s 21.1 s Question 4 (1 point) On a ride at the Calgary Stampede, the passengers sit facing inward in carriages that are 4.75 m from the centre. If the carriages revolve about the centre at a speed of 250 10.6 s 18.7 s
Question 4 (1 point) On a ride at the Calgary Stampede, the passengers sit facing inward in carriages that are 4.75 m from the centre. If the carriages revolve about the centre at a speed of 8.50 m/s, what is the centripetal acceleration? 15.2 m/s2 3.51 m/s² 11.2 m/s² 2.65 m/s² Question 5 (1 point) A centripetal force of magnitude Facts on a mass. What would be the magnitude of
Question 5 (1 point) A centripetal force of magnitude Facts on a mass. What would be the magnitude of the centripetal force if both the radius and the period of the circular motion were tripled? 27F 3F Question 6 (1 point) Which of the following quantities does the speed of a satellite in an orbit about a planet depend on? mase of the planet. OF/3 F
Question 6 (1 point) Which of the following quantities does the speed of a satellite in an orbit about a planet depend on? 1. the mass of the planet II. the radius of the planet III. the radius of orbit I and III ZA I and II I, II and III II and III i
Question 7 (1 point) What is the speed of a satellite that has a circular orbit of radius 3.25 X 10' m about a planet with a mass of 7.80 x 10 kg? 1.11 x 10¹ m/s 1.60 X 107 m/s 4,00 x 10³ m/s O2.75X103 m/s Question 8 (1 point) A force of 56.0 N does work over a displacement of 24.5 m. If the angle between the force and the 600 1
Question 8 (1 point) A force of 56.0 N does work over a displacement of 245 m. W the angle between the force and the displacement is 35.0", what is the work done by this force? 9.61 X 10² J 7.87 X 10² J 1.37 X 10³ J 1.12 x 10³ J Question 9 (1 point) Ignoring friction, how much work is required to lift an elevator car with a mass of 1050 kg from a height of 22.0 m above the ground to a height of 68.8 m above the ground?
Question 9 (1 point) Ignoring friction, how much work is required to lift an elevator car with a mass of 1050 kg from a height of 22.0 m above the ground to a height of 68.8 m above the ground? 2.27 X 105 J 7.09 X 105 J 7.22 X 104 J 4.82 X 105 J Question 10 (1 point) If a force of 256 N is applied to a spring, the spring is stretched a distance of 9.50 cm What is the plactic constant of this spring? 2024 07
Question 10 (1 point) If a force of 256 N is applied to a spring, the spring is stretched a distance of 9.50 cm from its equilibrium position. What is the elastic constant of this spring? 24.3 N/m 26.9 N/m 2.43 x 10³ N/m 2.69 X 10³ N/m Question 11 (1 point) What is the work required to compress a spring a distance of 24.0 cm from its equilibrium position if the spring has an elastic constant of 5.60 X 104N/m?
Question 11 (1 point) What is the work required to compress a spring a distance of 24.0 cm from its equilibrium position if the spring has an elastic constant of 5.60 X 10 N/m? 1.33 X 104 J 3.23 x 10³ J 6.72 X 10³ J 1.61 X 10³ J Question 12 (1 point) A 3.20 kg cart accelerates down a hill. When the cart is travelling at a speed of 4.20 what is the cart's kinetic energy?