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013 10.0 points An aerobatic airplane pilot experiences weightlessness as she passes over the top of...
13 & 14 013 10.0 points An aerobatic airplane pilot experiences weightlessness as she passes over...
13 & 14
013 10.0 points An aerobatic airplane pilot experiences weightlessness as she passes over the top of a loop-the-loop maneuver. The acceleration of gravity is 9.8 m/s2 If her speed is 450 m/s at this time, find the radius of the loop. Answer in units of km 014 10.0 points To test the performance of its tires, a car travels along a perfectly flat (no banking) cir- cular track of radius 87.7 m. The car increases its speed...
014 10.0 points To test the performance of its tires, a car travels along a perfectly...
014 10.0 points To test the performance of its tires, a car travels along a perfectly flat (no banking) cir- cular track of radius 132 m. The car increases its speed at uniform rate of cular track of radius ing) -= 2.99 m/s dt 2 at = until the tires start to skid. If the tires start to skid when the car reaches a speed of 22.4 m/s, what is the coefficient of static friction between the tires and the...
Acceleration of gravity is 9.8 m/s 014 10.0 points To test the performance of its tires,...
Acceleration of gravity is 9.8 m/s
014 10.0 points To test the performance of its tires, a car travels along a perfectly flat (no banking) cir- cular track of radius 143 m. The car increases its speed at uniform rate of d lul at _ = 4.66 m/s2 dt until the tires start to skid. If the tires start to skid when the car reaches a speed of 26 m/s, what is the coefficient of atic friction between the tires...
Need help on 11 (part 1) and 12 (part 2). please and thank you. ion 18-19...
Need help on 11 (part 1) and 12 (part 2). please and
thank you.
ion 18-19 - marder (Brown.J302K1819 4) 2 tween the coin and the turntable? 011 (part 1 of 2) 10.0 points An amusement park ride consists of a rotating circular platform 10.3 m in diameter from which 10 kg seats are suspended at the end of 2.13 m massless chains. When the system rotates, the chains make an angle of 22.9 with the vertical. The acceleration of...
The plot ofan airplane executes constant-speed loop-the-loop maneuver in vertical circle as in the figure below....
The plot ofan airplane executes constant-speed loop-the-loop maneuver in vertical circle as in the figure below. The speed of the airplane is 2.40 × 102 m/s, and the radius of the circle s 3.05 × 103 m. (a) What is the pilot's apparent weight at the lowest point of the circle if his true weight is 740 N? (b) What is his apparent weight at the highest point of the circle? (c) Describe how the pilot could experience weightlessness if...
013 10.0 points An Atwood machine is constructed using two wheels (with the masses concentrated at...
013 10.0 points An Atwood machine is constructed using two wheels (with the masses concentrated at the rims). The left wheel has a mass of 2.5 kg and radius 23.46 cm. The right wheel has a mass of 2.7 kg and radius 33.29 cm. The hanging mass on the left is 1.74 kg and on the right 1.31 kg. a. m3 What is the acceleration of the system? The acceleration of gravity is 9.8 m/s. Answer in units of m/s
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10...
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10 rev/s in 38.5 s. Assuming constant angular acceleration, what is its angular acceleration in rad/s2? Answer in units of rad/s. 008 10.0 points The tape in a videotape cassette has a total length 203 m and can play for 1.8 h. As the tape starts to play, the full reel has an outer radius of 47 mm and an inner radius of 14 mm....
Answer in units of m/s. Fo tic av 012 10.0 points An object is thrown vertically...
Answer in units of m/s. Fo tic av 012 10.0 points An object is thrown vertically up and attains an upward velocity of 50 m/s when it reaches one fourth of its maximum height above its launch point. What was the initial speed of the object? The acceleration of gravity is 9.8 m/s. Answer in units of m/s 013 10.0 points A rock is thrown downward from an unknown height above the ground with an initial speed of 13 m/s....
006 10.0 points A model airplane of mass 0.634 kg flies in a horizontal circle at...
006 10.0 points A model airplane of mass 0.634 kg flies in a horizontal circle at the end of a control wire of length 45.4 m with a speed of 48.2 m/s. The forces exerted on the airplane are the pull of the control wire, its own weight, and aerodynamic lift, which acts at 29.7° inward from the vertical as shown in the figure litft Compute the tension in the wire if it makes a constant angle of 29.7 with...
013 (part 1 of 4) 10.0 points You throw a softball (of mass 200 g) straight...
013 (part 1 of 4) 10.0 points You throw a softball (of mass 200 g) straight up into the air. It reaches a maximum altitude of 13.9 m and then returns to you What is the gravitational potential energy of the soft ball at its highest position? Assume the ball departed from and returned to ground level. Answer in units of J. 014 (part 2 of 4) 10.0 points Assume no energy is lost by the softball while it is...
13 & 14
013 10.0 points An aerobatic airplane pilot experiences weightlessness as she passes over the top of a loop-the-loop maneuver. The acceleration of gravity is 9.8 m/s2 If her speed is 450 m/s at this time, find the radius of the loop. Answer in units of km 014 10.0 points To test the performance of its tires, a car travels along a perfectly flat (no banking) cir- cular track of radius 87.7 m. The car increases its speed...
014 10.0 points To test the performance of its tires, a car travels along a perfectly flat (no banking) cir- cular track of radius 132 m. The car increases its speed at uniform rate of cular track of radius ing) -= 2.99 m/s dt 2 at = until the tires start to skid. If the tires start to skid when the car reaches a speed of 22.4 m/s, what is the coefficient of static friction between the tires and the...
Acceleration of gravity is 9.8 m/s
014 10.0 points To test the performance of its tires, a car travels along a perfectly flat (no banking) cir- cular track of radius 143 m. The car increases its speed at uniform rate of d lul at _ = 4.66 m/s2 dt until the tires start to skid. If the tires start to skid when the car reaches a speed of 26 m/s, what is the coefficient of atic friction between the tires...
Need help on 11 (part 1) and 12 (part 2). please and
thank you.
ion 18-19 - marder (Brown.J302K1819 4) 2 tween the coin and the turntable? 011 (part 1 of 2) 10.0 points An amusement park ride consists of a rotating circular platform 10.3 m in diameter from which 10 kg seats are suspended at the end of 2.13 m massless chains. When the system rotates, the chains make an angle of 22.9 with the vertical. The acceleration of...
The plot ofan airplane executes constant-speed loop-the-loop maneuver in vertical circle as in the figure below. The speed of the airplane is 2.40 × 102 m/s, and the radius of the circle s 3.05 × 103 m. (a) What is the pilot's apparent weight at the lowest point of the circle if his true weight is 740 N? (b) What is his apparent weight at the highest point of the circle? (c) Describe how the pilot could experience weightlessness if...
013 10.0 points An Atwood machine is constructed using two wheels (with the masses concentrated at the rims). The left wheel has a mass of 2.5 kg and radius 23.46 cm. The right wheel has a mass of 2.7 kg and radius 33.29 cm. The hanging mass on the left is 1.74 kg and on the right 1.31 kg. a. m3 What is the acceleration of the system? The acceleration of gravity is 9.8 m/s. Answer in units of m/s
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10 rev/s in 38.5 s. Assuming constant angular acceleration, what is its angular acceleration in rad/s2? Answer in units of rad/s. 008 10.0 points The tape in a videotape cassette has a total length 203 m and can play for 1.8 h. As the tape starts to play, the full reel has an outer radius of 47 mm and an inner radius of 14 mm....
Answer in units of m/s. Fo tic av 012 10.0 points An object is thrown vertically up and attains an upward velocity of 50 m/s when it reaches one fourth of its maximum height above its launch point. What was the initial speed of the object? The acceleration of gravity is 9.8 m/s. Answer in units of m/s 013 10.0 points A rock is thrown downward from an unknown height above the ground with an initial speed of 13 m/s....
006 10.0 points A model airplane of mass 0.634 kg flies in a horizontal circle at the end of a control wire of length 45.4 m with a speed of 48.2 m/s. The forces exerted on the airplane are the pull of the control wire, its own weight, and aerodynamic lift, which acts at 29.7° inward from the vertical as shown in the figure litft Compute the tension in the wire if it makes a constant angle of 29.7 with...
013 (part 1 of 4) 10.0 points You throw a softball (of mass 200 g) straight up into the air. It reaches a maximum altitude of 13.9 m and then returns to you What is the gravitational potential energy of the soft ball at its highest position? Assume the ball departed from and returned to ground level. Answer in units of J. 014 (part 2 of 4) 10.0 points Assume no energy is lost by the softball while it is...
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