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008 10.0 points A 62 g ball moves at 19 m/s. If its speed is measured...
A ball of mass 15 g moves with a speed of 60 m/s. If its speed...
A ball of mass 15 g moves with a speed of 60 m/s. If its speed is measured to an accuracy of 0.8%, what is the minimum uncertainty in its position? The value of ¯h is 1.05457 × 10?34 J · s. Answer in units of m.
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....
008 10.0 points An elevator starts from rest with a constant upward acceleration and moves 1...
008 10.0 points An elevator starts from rest with a constant upward acceleration and moves 1 m in the first 1.8 s. A passenger in the elevator is holding a 4.6 kg bundle at the end of a vertical cord. What is the tension in the cord as the ele- vator accelerates? The acceleration of gravity is 9.8 m/s. Answer in units of N.
007 10.0 points If the speed of sound in air is 340 m/s, what is. approximately...
007 10.0 points If the speed of sound in air is 340 m/s, what is. approximately the length of a shortest air 008 10.0 points A stringed instrument has a maximum string length of 0.4 m and is tuned so that a wave travels along the string at 120 m/s. What is the string's fundamental frequency at this length and wave speed? Answer in units of Hz.
1,2 007 (part 1 of 2) 10.0 points A truck covers 42.5 m in 6.8 s...
1,2
007 (part 1 of 2) 10.0 points A truck covers 42.5 m in 6.8 s while smoothly slowing down to a final speed of 3.2 m/s. Find its original speed. Answer in units of m/ 008 (part 2 of 2) 10.0 points Find its acceleration. Answer in units of m/s2
010 (part 1 of 3) 10.0 points In a pool game, the cue ball, which has...
010 (part 1 of 3) 10.0 points In a pool game, the cue ball, which has an ini- tial speed of 5 m/s, makes an elastic collision with the eight bal, which is initially at rest The two balls have equal masses of 9 kg. Af ter the collision, the eight ball moves at an an angle of 35.6° to the original direction of the cue ball. Before After 5 m/s What angle does the cue ball make with respect...
10.0 points 003 A "seconds" pendulum is one that moves through its equilibrium position once each...
10.0 points 003 A "seconds" pendulum is one that moves through its equilibrium position once each second. The length of a seconds pendulum is 0.9921 m at Tokyo and 0.9966 m at Cam- bridge, England. What is the Tokyo: Cambridge ratio of the free-fall acceleration at these two locations, respectively? 004 (part 1 of 2) 10.0 points The frequency of oscillation of the wave emit- ted by an FM radio station is 98.7 MHz. Find the period of vibration. Radio...
answer 7,8, and 9 :) pls 007 10.0 points A potter's wheel moves from rest to...
answer 7,8, and 9 :) pls
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10 rev/s in 26.9 s. ng constant angular acceleration, Assumi 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 186 m and can play for 2 h. As the tape starts to play, the full reel has an outer radius of 40 mm...
10. [-12 Points) DETAILS SERCPWA11 2.WA.008. A car moves in a stra ght line at 24.0...
10. [-12 Points) DETAILS SERCPWA11 2.WA.008. A car moves in a stra ght line at 24.0 m/s for 12.0 miles, then at 30.0 m/s for another 12.0 miles. (a) is the car's average speed less than, greater than, or equal to 27.0 m/s? less than 27.0 m/s equal to 27.0 m/s greater than 27.0 m/s (b) Calculate the car's average speed. (Enter your answer to three significant figures.) m/s MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 4. (-12 points) DETAILS...
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...
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....
008 10.0 points An elevator starts from rest with a constant upward acceleration and moves 1 m in the first 1.8 s. A passenger in the elevator is holding a 4.6 kg bundle at the end of a vertical cord. What is the tension in the cord as the ele- vator accelerates? The acceleration of gravity is 9.8 m/s. Answer in units of N.
007 10.0 points If the speed of sound in air is 340 m/s, what is. approximately the length of a shortest air 008 10.0 points A stringed instrument has a maximum string length of 0.4 m and is tuned so that a wave travels along the string at 120 m/s. What is the string's fundamental frequency at this length and wave speed? Answer in units of Hz.
1,2
007 (part 1 of 2) 10.0 points A truck covers 42.5 m in 6.8 s while smoothly slowing down to a final speed of 3.2 m/s. Find its original speed. Answer in units of m/ 008 (part 2 of 2) 10.0 points Find its acceleration. Answer in units of m/s2
010 (part 1 of 3) 10.0 points In a pool game, the cue ball, which has an ini- tial speed of 5 m/s, makes an elastic collision with the eight bal, which is initially at rest The two balls have equal masses of 9 kg. Af ter the collision, the eight ball moves at an an angle of 35.6° to the original direction of the cue ball. Before After 5 m/s What angle does the cue ball make with respect...
10.0 points 003 A "seconds" pendulum is one that moves through its equilibrium position once each second. The length of a seconds pendulum is 0.9921 m at Tokyo and 0.9966 m at Cam- bridge, England. What is the Tokyo: Cambridge ratio of the free-fall acceleration at these two locations, respectively? 004 (part 1 of 2) 10.0 points The frequency of oscillation of the wave emit- ted by an FM radio station is 98.7 MHz. Find the period of vibration. Radio...
answer 7,8, and 9 :) pls
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10 rev/s in 26.9 s. ng constant angular acceleration, Assumi 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 186 m and can play for 2 h. As the tape starts to play, the full reel has an outer radius of 40 mm...
10. [-12 Points) DETAILS SERCPWA11 2.WA.008. A car moves in a stra ght line at 24.0 m/s for 12.0 miles, then at 30.0 m/s for another 12.0 miles. (a) is the car's average speed less than, greater than, or equal to 27.0 m/s? less than 27.0 m/s equal to 27.0 m/s greater than 27.0 m/s (b) Calculate the car's average speed. (Enter your answer to three significant figures.) m/s MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 4. (-12 points) DETAILS...
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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