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Chapter 02, Problem 45 Your answer is partially correct. Try again. The drawing shows a device...
Chapter 02, Problem 45 The drawing shows a device that you can make with a piece...
Chapter 02, Problem 45 The drawing shows a device that you can make with a piece of cardboard, which can be used to measure a person's reaction time. Hold the card at the top and suddenly drop it. Ask a friend to try to catch the card between his or her thumb and index finger. Initially, your friend's fingers must be level with the asterisks at the bottom. By noting where your friend catches the card, you can determine his...
Chapter 02, Problem 035 Partially correct answer. Your answer is partially correct. Try again. Figure (a)...
Chapter 02, Problem 035 Partially correct answer. Your answer is partially correct. Try again. Figure (a) shows a red car and a green car that move toward each other. Figure (b) is a graph of their motion, showing the positions xg0 = 260 m and xr0 = -35 m at time t = 0. The green car has a constant speed of 19 m/s and the red car begins from rest. What is the acceleration magnitude of the red car?...
Chapter 30, Problem 046 Your answer is partially correct. Try again. The current i through a...
Chapter 30, Problem 046 Your answer is partially correct. Try again. The current i through a 6.5 H inductor varies with time t as shown by the graph of the figure. The inductor has a resistance of 14 2. Find the magnitude of the induced emf during the time intervals (a) t = 0 to 2 ms; (b) 2 ms to 5 ms, and (c) 5 ms to 6 ms. (Ignore the behavior at the ends of the intervals.) 6...
Chapter 05, Problem 30 Partially correct answer. Your answer is partially correct. Try again. The drawing...
Chapter 05, Problem 30 Partially correct answer. Your answer is partially correct. Try again. The drawing shows a baggage carousel at an airport. Your suitcase has not slid all the way down the slope and is going around at a constant speed on a circle ((r = 9.20 m) as the carousel turns. The coefficient of static friction between the suitcase and the carousel is 0.700, and the angle θ in the drawing is 21.4°. How much time is required...
Chapter 30, Problem 02 Your answer is partially correct. Try again, The nucleus of a hydrogen...
Chapter 30, Problem 02 Your answer is partially correct. Try again, The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.1 x 10-15 m. The single electron in a hydrogen atom orbits the nudeus at a distance of 5.3 x 1011 m. What is the ratio of the density of the hydrogen nucleus to the density of the complete hydrogen atom? Number Units The units) w ant die to :
Phy 1010 – Chapter 2 Activity: Measure your reaction time. Requires a ruler and a friend...
Phy 1010 – Chapter 2 Activity: Measure your reaction time. Requires a ruler and a friend to help you. Hold the index finger and thumb of your dominant hand about 2.5 cm apart, and have a friend hold a ruler vertically in the space between your fingers and thumb. Note the position of the ruler relative to your index finger. Your friend must release the ruler, and you must catch it (without moving your hand downward) as quickly as you...
Chapter 10, Problem 45 GO Your answer is partially correct. Try again. The length of a...
Chapter 10, Problem 45 GO Your answer is partially correct. Try again. The length of a simple pendulum is 0.85 m and the mass of the particle (the "bob") at the end of the cable is 0.34 kg. The pendulum is pulled away from its equilibrium position by an angle of 7.9° and released from rest. Assume that friction can be neglected and that the resulting oscillatory motion is simple harmonic motion. (a) What is the angular frequency of the...
Chapter 19, Problem 67 Your answer is partially correct. Try again. The drawing shows a parallel...
Chapter 19, Problem 67 Your answer is partially correct. Try again. The drawing shows a parallel plate capacitor. One-half of the region between the plates is filled with a material that has a dielectric constant K1 2.7. The other half is filled with a material that has a dielectric constant K2-4.6. The area of each plate is 1.2cm2, and the plate separation is 0.37 mm. Find the capacitance Number Units LUF the tolerance is +/-2%
Chapter 26, Problem 121 Your answer is partially correct. Try again. At age forty, a man...
Chapter 26, Problem 121 Your answer is partially correct. Try again. At age forty, a man requires contact lenses (f = 71.0 cm) to read a book held 25.0 cm from his eyes. At age forty-five, he finds that while wearing these contacts he must now hold a book 28.0 cm from his eyes. (a) By what distance has his near point changed? (b) What focal length lenses does he require at age forty-five to read a book at 25.0...
Chapter 02, Problem 45 The drawing shows a device that you can make with a piece of cardboard, which can be used to measure a person's reaction time. Hold the card at the top and suddenly drop it. Ask a friend to try to catch the card between his or her thumb and index finger. Initially, your friend's fingers must be level with the asterisks at the bottom. By noting where your friend catches the card, you can determine his...
Chapter 30, Problem 046 Your answer is partially correct. Try again. The current i through a 6.5 H inductor varies with time t as shown by the graph of the figure. The inductor has a resistance of 14 2. Find the magnitude of the induced emf during the time intervals (a) t = 0 to 2 ms; (b) 2 ms to 5 ms, and (c) 5 ms to 6 ms. (Ignore the behavior at the ends of the intervals.) 6...
Chapter 30, Problem 02 Your answer is partially correct. Try again, The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.1 x 10-15 m. The single electron in a hydrogen atom orbits the nudeus at a distance of 5.3 x 1011 m. What is the ratio of the density of the hydrogen nucleus to the density of the complete hydrogen atom? Number Units The units) w ant die to :
Chapter 10, Problem 45 GO Your answer is partially correct. Try again. The length of a simple pendulum is 0.85 m and the mass of the particle (the "bob") at the end of the cable is 0.34 kg. The pendulum is pulled away from its equilibrium position by an angle of 7.9° and released from rest. Assume that friction can be neglected and that the resulting oscillatory motion is simple harmonic motion. (a) What is the angular frequency of the...
Chapter 19, Problem 67 Your answer is partially correct. Try again. The drawing shows a parallel plate capacitor. One-half of the region between the plates is filled with a material that has a dielectric constant K1 2.7. The other half is filled with a material that has a dielectric constant K2-4.6. The area of each plate is 1.2cm2, and the plate separation is 0.37 mm. Find the capacitance Number Units LUF the tolerance is +/-2%
Chapter 26, Problem 121 Your answer is partially correct. Try again. At age forty, a man requires contact lenses (f = 71.0 cm) to read a book held 25.0 cm from his eyes. At age forty-five, he finds that while wearing these contacts he must now hold a book 28.0 cm from his eyes. (a) By what distance has his near point changed? (b) What focal length lenses does he require at age forty-five to read a book at 25.0...
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