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A bowling ball is suspended from the ceiling of a lecture hall by a strong cord. The ball is drawn away from its equilibrium position and released from rest at the tip of the demonstrator's nose, as shown in Figure.
(a) If the demonstrator remains stationary, explain why the ball does not strike her on its return swing.
(b) Would this demonstrator be safe if the ball were given a push from its starting position at her nose?
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6020 N when separated by 50 cm, center-to-center.
A 182 kg weather rocket is loaded with 97 kg of fuel and firedstraight up. It accelerates upward at 29.98 m/s2 for34.9 s, then runs out of fuel. What is the rocket's maximum altitude
A satellite circling the earth has an average power consumption of 350.0 W. what area is required for the solar panels
Transverse waves with a speed of 56.0 m/s are to be produced on a stretched string. Calculate the wave speed in the string if the tension is 8.00 N
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. How tall is the building that the child is standing on
A high-voltage transmission line with a resistance of 0.32 /km carries a current of 1000 A. What is the power loss due to resistance in the line
A mass weighing 20 kg stretches a spring 5 cm. The mass is displaced an additional 5 cm below equilibrium position and then released. Suppose the initial velocity is v = 0 and there no other forces. (Take g = 10m/s2) Find the times at which the m..
A car drives north at 32mi/h for 10 min and then turns east and goes 5.0 mi at 56mi/h. Finally, it goes southwest at 40mi/h for 6.0 min. Determine its average velocity for this trip
You would like to store 8.9J of energy in the magnetic field of a solenoid. What is the magnitude of the magnetic field inside the solenoid
You hold a spherical salad bowl 90 in front of your face with the bottom of the bowl facing you. The salad bowl is made of polished metal with the 30 radius of curvature. Where is the image of your 2.0 tall noses located.
The largest apple pie ever made was rectangular in shape and had an area of 7m× 12m. Consider a parallel-plate capacitor with this area. Imagine that the capacitor is filled with air and the distance between the plates is 1mm. a.
The free-fall acceleration on Mars is 3.7 m/s2. Find what length pendulum has a period of 2 second on Earth
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