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On a spacecraft, two engines are turned on for 658 s at a moment when the velocity of the craft has x and y components of velocity v0x = 4115 m/s and v0y =5135 m/s. While the engines are firing, the craft undergoes a displacement that has components of x = 4.48 106 m and y = 7.20 106 m. Find the x and ycomponents of the craft's acceleration.
An apple is dropped from a 25m cliff. At the similar time, a person at the bottom of the cliff fries an arrow up towards the apple. The arrow sticks the apple 0.450 seconds later.
What is the radius r of the turn if theta = 20.0 degrees (assuming the car continues in uniform circular motion around the turn).
A 12.0-{rm kg} box resting on a horizontal, frictionless surface is attached to a 5.00-{rm kg} weight by a thin, light wire that passes over a frictionless pulley). The pulley has the shape of a uniform solid disk of mass 2.40 {rm kg} and diameter 0...
explain the separation between the two sources. What is the displacement of the car between 3 P.M. and 6 P.M.
You are standing 2.5 {rm m} straight in front of one of the two loudspeakers. They are 3 {rm m} apart and both are playing a 686 {rm Hz} tone in phase. As you begin to walk directly away from the speaker, at what distances from the speaker do you ..
What is a quantum well: give an example of structure, growth method to make quantum wells and quantum states i.e. outline quantization using diagrams
(8c1p14) Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars, What is the mass of gasoline (? = 0.680 g/cm3) in a 94.6 L gasoline tank? (kg)
Distance between focal plane and lens
When the projectile is at the top of its trajectory, an internal explosion causes it to separate into two fragments of equal mass. One of the fragments falls straight downward as though it had been free from rest.
A spherical balloon is partially blown up and its surface area is measured. More air is then added, increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 6.7 during this procedure, by what factor does the ..
A highway is to be built between tow towns, one of which lies 30.7 km south and 72.2 km west of the othe, What is the shortest lenght of highway that can be bult between the tow towns
To fill a child's inflatable wading pool, you use a garden hose with a diameter of 2.90 cm. Water flows from this hose with a speed of 1.50 m/s. How long will it take to fill the pool to a depth of 25.0 cm if the pool is circular and has the diame..
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