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Problem 1: Which of the following multiples of the fundamental frequency will not produce resonance for a children swing?
a. 1/3
b. 1/2
c. 1
d. 2
A 6080 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the Sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 253 m/s relative to the space probe. What is the final velocity of the probe?
A 300 keV photon is scattered at an angle of 30 degrees during a Compton interaction. What are the energies of the scattered photon and the Compton electron
A stationary detector sends out a sound wave of frequency0.305 MHZ toward an approaching car. The speed of the car is 40m/s. What is the frequency of the waves reflected back to the detector
An ideal gas's initial conditions are 1 mol, a pressure of 271.7 kPa, an internal energy of 624 J and a volume of 0.8 L. The gas is allowed to expand quasi-statically at constant pressure to a volume of 6.9 L. It is then cooled at constant volume unt..
when a 20.0-v emf device is placed across two resistors in series a current of 15.0 a is flowing in each of the
A 87.0-kg man is riding an escalator in a shopping mall. What is the work done on the man by the gravitational force
A 89 kg box rests on a level surface as shown in Figure 1. The coefficient of static friction, µS = 1.3 and the coefficient of kinetic friction, µK = 0.9. find the magnitude of Gravity on the box from the Earth
A single slit forms a diffraction pattern, with the first minimum at an angle of 40.00 (degree) from central maximum, What is the wave length of this new light
A ball is thrown 20.0 m/s at an angle of 40.0º with the horizontal. Assume the ball is thrown at ground level. How long does it take the ball to reach the wall
A typical adult human lung contains about 330 million tiny cavities called alveoli. Assume the alveoli are spherical and a typical human lung is about 1.95 liters. Estimate the average diameter of a single alveolus
machine part rotates at an angular speed of 0.46 rad/s; its speed is then increased to 2.0 rad/s at an angular acceleration of 0.59 rad/s2
a 0.02 kg lead bullet traveling 200 m/s strikes an armor plate and comes to a stop. If all of its energy is converted to heat that it absorbs, what is the temperature change
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