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Use the worked example above to help you solve this problem. A noisy grinding machine in...
please break it down step by step I'm really confused for question 4 and 2 b 1. Find the intensity level of sound...
please break it down step by step I'm really confused for
question 4 and 2 b
1. Find the intensity level of sound with the following intensities: a) 6.84 x 10-6 W/m2 b) 45.6 x 10-14W/m2 2. Find the intensity corresponding to the following: a)-18.0 dB b) 118 dB 3. Two sounds differ in intensity levels by 105 dB. What is the ratio of the intensities of the two sounds? What sound intensity level is produced when 3 identical loudspeakers...
PRACTICE IT Use the worked example above to help you solve this problem. A circular wire...
PRACTICE IT Use the worked example above to help you solve this problem. A circular wire loop of radius 1.04 m is placed in a magnetic field of magnitude 0.495 T. The normal to the plane of the loop makes an angle of 30.0e with the magnetic field (see figure a). The current in the loop is 2.35 A in the direction shown. (a) Find the magnetic moment of the loop and,the magnitude of the torque at this instant. A...
Figure out A Use the worked example above to help you solve this problem. A wheel...
Figure out A
Use the worked example above to help you solve this problem. A wheel rotates with a constant angular acceleration of 3.65 rad/s2. Assume the angular speed of the wheel is 2.15 rad/s at 4-0. (a) Through what angle does the wheel rotate between radians and revolutions. 11.6 1.85 0 and 2.00 s? Give your answer in rad rev (b) What is the angular speed of the wheel at 9.45 2.00 s? rad/s (c) What angular displacement (in...
Use the worked example above to help you solve this problem. A typical jetliner lands at...
Use the worked example above to help you solve this problem. A typical jetliner lands at a speed of 143 mi/h and decelerates at the rate of (11.9 mi/h)/s. If the jetliner travels at a constant speed of 143 mi/h for 1.1 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest? a number differs from the correct answer by more than 10%. Double check your...
PRACTICE IT Use the worked example above to help you solve this problem. An airplane has...
PRACTICE IT
Use the worked example above to help you solve this problem. An
airplane has wings, each with area 4.05 m2, designed so
that air flows over the top of the wing at 249 m/s and underneath
the wing at 226 m/s. Find the mass of the airplane such that the
lift on the plane will support its weight, assuming the force from
the pressure difference across the wings is directed straight
upwards.
Your response differs from the correct...
PRACTICE IT Use the worked example above to help you solve this problem. A large pipe...
PRACTICE IT Use the worked example above to help you solve this problem. A large pipe with a cross-sectional area of 1.24 m2 descends 4.80 m and narrows to 0.500 m2, where it terminates in a valve at point (see figure). If the pressure at point is atmospheric pressure, and the valve is opened wide and water allowed to flow freely, find the speed of the water leaving the pipe. 4.43 Your response differs from the correct answer by more...
PRACTICE IT Use the worked example above to help you solve this problem. A patient receives...
PRACTICE IT Use the worked example above to help you solve this problem. A patient receives a blood transfusion through a needle of radius 0.25 mm and length 2.1 cm, The density of blood is 1,050 kg/m3. The bottle supplying the blood is 0.500 m above the patient's arm. What is the rate of flow through the needle? m2/s EXERCISE GETTING STARTED I I'M STUCK! HINTS: A pipe carrying water from a tank 19.5 m tall must cross 3.20 x...
PRACTICE IT Use the worked example above to help you solve this problem. A patient receives...
PRACTICE IT Use the worked example above to help you solve this problem. A patient receives a blood transfusion through a needle of radius 0.25 mm and length 2.1 cm, The density of blood is 1,050 kg/m3. The bottle supplying the blood is 0.500 m above the patient's arm. What is the rate of flow through the needle? 1.39E-7 m2/s EXERCISE I I'M STUCK! HINTS: GETTING STARTED A pipe carrying water from a tank 19.5 m tall must cross 3.20...
PRACTICE IT Use the worked example above to help you solve this problem. A sled is...
PRACTICE IT Use the worked example above to help you solve this problem. A sled is tied to a tree on a frictionless, snow-covered hill, as shown in Figure (a). If the sled weighs 75.0 N, find the magnitude of the tension force T exerted by the rope on the sled and that of the normal force ni exerted by the hill on the sled. T = | 37.5 n = | 64.95 EXERCISE HINTS: GETTING STARTED I I'M STUCK...
RACTICE IT se the worked example above to help you solve this problem. Assume that the...
RACTICE IT se the worked example above to help you solve this problem. Assume that the Sun delivers an average power per unit area of about 1000 W/m2 to Earth's surface. (a) Calculate the total power incident on a flat tin roof 7.66 m by 23.4 m. Assume that the radiation is incident nomal (perpendicular) to the roof 179244 (b) The tin roof reflects some light, and convection, conduction and radiation transport the rest of the thermal energy away, until...
please break it down step by step I'm really confused for
question 4 and 2 b
1. Find the intensity level of sound with the following intensities: a) 6.84 x 10-6 W/m2 b) 45.6 x 10-14W/m2 2. Find the intensity corresponding to the following: a)-18.0 dB b) 118 dB 3. Two sounds differ in intensity levels by 105 dB. What is the ratio of the intensities of the two sounds? What sound intensity level is produced when 3 identical loudspeakers...
PRACTICE IT Use the worked example above to help you solve this problem. A circular wire loop of radius 1.04 m is placed in a magnetic field of magnitude 0.495 T. The normal to the plane of the loop makes an angle of 30.0e with the magnetic field (see figure a). The current in the loop is 2.35 A in the direction shown. (a) Find the magnetic moment of the loop and,the magnitude of the torque at this instant. A...
Figure out A
Use the worked example above to help you solve this problem. A wheel rotates with a constant angular acceleration of 3.65 rad/s2. Assume the angular speed of the wheel is 2.15 rad/s at 4-0. (a) Through what angle does the wheel rotate between radians and revolutions. 11.6 1.85 0 and 2.00 s? Give your answer in rad rev (b) What is the angular speed of the wheel at 9.45 2.00 s? rad/s (c) What angular displacement (in...
Use the worked example above to help you solve this problem. A typical jetliner lands at a speed of 143 mi/h and decelerates at the rate of (11.9 mi/h)/s. If the jetliner travels at a constant speed of 143 mi/h for 1.1 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest? a number differs from the correct answer by more than 10%. Double check your...
PRACTICE IT
Use the worked example above to help you solve this problem. An
airplane has wings, each with area 4.05 m2, designed so
that air flows over the top of the wing at 249 m/s and underneath
the wing at 226 m/s. Find the mass of the airplane such that the
lift on the plane will support its weight, assuming the force from
the pressure difference across the wings is directed straight
upwards.
Your response differs from the correct...
PRACTICE IT Use the worked example above to help you solve this problem. A large pipe with a cross-sectional area of 1.24 m2 descends 4.80 m and narrows to 0.500 m2, where it terminates in a valve at point (see figure). If the pressure at point is atmospheric pressure, and the valve is opened wide and water allowed to flow freely, find the speed of the water leaving the pipe. 4.43 Your response differs from the correct answer by more...
PRACTICE IT Use the worked example above to help you solve this problem. A patient receives a blood transfusion through a needle of radius 0.25 mm and length 2.1 cm, The density of blood is 1,050 kg/m3. The bottle supplying the blood is 0.500 m above the patient's arm. What is the rate of flow through the needle? m2/s EXERCISE GETTING STARTED I I'M STUCK! HINTS: A pipe carrying water from a tank 19.5 m tall must cross 3.20 x...
PRACTICE IT Use the worked example above to help you solve this problem. A patient receives a blood transfusion through a needle of radius 0.25 mm and length 2.1 cm, The density of blood is 1,050 kg/m3. The bottle supplying the blood is 0.500 m above the patient's arm. What is the rate of flow through the needle? 1.39E-7 m2/s EXERCISE I I'M STUCK! HINTS: GETTING STARTED A pipe carrying water from a tank 19.5 m tall must cross 3.20...
PRACTICE IT Use the worked example above to help you solve this problem. A sled is tied to a tree on a frictionless, snow-covered hill, as shown in Figure (a). If the sled weighs 75.0 N, find the magnitude of the tension force T exerted by the rope on the sled and that of the normal force ni exerted by the hill on the sled. T = | 37.5 n = | 64.95 EXERCISE HINTS: GETTING STARTED I I'M STUCK...
RACTICE IT se the worked example above to help you solve this problem. Assume that the Sun delivers an average power per unit area of about 1000 W/m2 to Earth's surface. (a) Calculate the total power incident on a flat tin roof 7.66 m by 23.4 m. Assume that the radiation is incident nomal (perpendicular) to the roof 179244 (b) The tin roof reflects some light, and convection, conduction and radiation transport the rest of the thermal energy away, until...
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