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The potential difference between two parallel plates is 566 V. An alpha particle with mass of 6.64 10?27 kg and charge of 3.20 10?19 C is released from rest near the positive plate. What is the speed of the alpha particle when it reaches the other plate? The distance between the plates is 43.8 cm.
A rocket has an initial mass of 28,000 kg, of which 20 percent is the payload. It burns fuel at a rate of 185 kg/s and exhausts its gas at a relative speed of 1.8 km/s.
What portion of jet power lost to producing sound Powdered steel is placed in a container
A spacecraft is traveling with a velocity of vox = 5675 m/salong the +x direction. Two engines are turned on for a time of 847 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.25 m/s2,while the other gives it an acc..
Consider a violin string with a vibrating length of 30 cm. If the speed of a wave on this string is 250 m/s, what is the tension in the string? Hint: You will have to estimate the diameter of the string. Assume the density is the same as that of s..
It then increases it's speed at the rate of 1.55 m/s2. Find out the magnitude of acceleration under these new conditions. Answer in units m/s2.
The cannonball is fired at a speed of 53.0 and an angle of 31 above horizontal. A cannonball that was accidentally dropped hits the moat below in 1.40. How far from the castle wall does the cannonball hit ground.
evaluate what value of the distance d should a driver locate his car if he wishes to stay on a circular path without depending on friction?
A 6.5×10-25-kg particle is vibrating with simple harmonic motion with a period of 5.0×10-6 s and a maximum speed of 6.00×102 m/s. Find the Maximum displacement of the particle.
The spring is aligned with the plane and has a spring constant of 133 N/m. Explain how much does the spring stretch?
The bunchberry flower has the fastest-moving parts ever seen in a plant.at first , the stamen are held by the petals in a bent position, storing elastic energy like a coiled spring.
A professor's office door is 0.95 wide, 2.2 high, 4 thick; has a mass of 22 , and pivots on frictionless hinges. A "door closer" is attached to door and the top of door frame. When the door is open and at rest, the door closer exerts a torque of 5..
An athlete starts at point A and runs at a constant speed of 7.00 m/s around a round track 250 m in diameter? Find the x component of this runner's average velocity between points A and B.
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