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A high-speed space-probe with mass m=5x104 kg and v=0.8C is launched towards Neptune.
(a) What is its momentum recorded at the Mission Control in Florida?
(b) For landing preparation at, the speed of the probe has to be reduced to 50% i.e. now v=0.4C. Find the change in momentum of the probe.
(c) What is percentage change in momentum relative to its original value?
Which pulls harder gravitationally, the Earth on the Moon, or the Moon on the Earth? Which accelerates more? Explain your answers in terms of relevant principles of physics.
A Doppler ultrasound machine uses a probe emitting ultrasound waves at 5MHz to probe the speed of blood cells moving in an artery, What is the wavelength through the soft tissue of ultrasound produced by this machine
As shown in the figure, a small particle of charge q = -7.0 Times 10-6 C and mass m = 3.1 Times 10-12 kg has a velocity v0 = 9.4 Times 103 m/s as it enters a region of uniform magnetic field. The particle is observed to travel in the semicircular ..
a 46.5-cm-diameter circular loop is rotated in a uniform electric field until the position of maximum electric flux is
The G string on a violin has a fundamental frequency of 196Hz. It is 32.5 cm long and has a massof 0.500 g. what is the effective length of her string
A proton (rest mass 1.67 x 10-27 kg) has total energy that is 3.00 times its rest energy. What is the kinetic energy of the proton
A horse is capable of moving at four different speeds: walk (1.9 m/s), trot (5.0 m/s), canter (7.0 m/s), and gallop (12 m/s). Ann is learning how to ride a horse. She spends 15 minutes riding at a walk and 1.8 minutes at each other speed.
When the power is turned off on a turntable spinning at 78 rpm, you find that it takes 10.5 revolutions for it to stop while slowing at a constant rate. What is the angular acceleration of the turntable
A guitarstring is 60 cm long. The string has a mass of 1.8g and isunder a tension of 945N. Calculate the fundamental wavelength for this string
A baggage handler drops your 10 kg suitcase onto a conveyor belt running at 1.5 m/s. The materials are such that µs = 0.50 and µk = 0.25.
A parallel-plate capacitor in air has a plate separation of 1.42 cm and a plate area of 25.0 cm2. What is the change in energy of the capacitor
a projectile is fired at an upward angle of 45deg from the top of a 242 m cliff with a speed of 208 ms. what will be
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