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As observed from Earth, rocket Alpha moves with speed 0.814c and rocket Bravo travels with a speed of 0.638c. They are moving along the same line toward a head-on collision. What is the speed of rocket Alpha as measured from rocket Bravo? Give answer as multiple of c.
On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, Calculate the magnitude of the initial velocity
Four charges are placed on the corners of a square that lies in the first quadrant of the x-y plane with sides of length 3m. Find the force (magntude and direction) on the charge at the origin
A helicopter has blades of length 6 m, rotating at 4.1 rev/s about a central hub. If the vertical component of Earth's magnetic field is 4.5×10?5 T, FIND the maximum emf induced in the coil by Earth's magnetic field
The largest fusion bomb ever detonated (called the Tsar Bomba) was tested by the Soviet Union in 1961. If this bomb used the deuterium-deuterium fusion reaction, how many kilograms of deuterium were required
An earth satellite is observed to have a height of pergee of 210 Kilometers and a height of apogee of 1,200 kilometers. Find the period of the orbit
A mass m is gently placed on the end of a freely hanging spring. The mass then falls 32.0 cm before it stops and begins to rise. What is the frequency of the oscillation
According to the shop manual, when drilling a 12.1-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1400 rev/min. find the maximum linear speed of any part of the bit
A circular coil 19.0cm in diameter and containing nine loops lies flat on the ground. Determine the torque on the coil. Express your answer using three significant figures and include the appropriate units
In a football game, a tackle running at a constant speed of 5 m/s tackles a stationary receiver. What is the speed of the system's center of mass before the collision
A person whose eyes are 1.75m above the floor stands in front of the plane mirror. The top of her head is 0.11.
A truck travels beneath an airplane that is moving 190 km/h at an angle of 26? to the ground.
three forces are applied to a bracket as shown. determine the range of values of alpha for which the magnitude of the resultant forces acting on a is less than 600n
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