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A model rocket launches with an initial velocity of 6 m/s, at an angle of 77 degrees (with respect to the horizon). The rocket's engine provides an acceleration of 1.8 m/s2, acting in the same direction as the initial velocity. After 20 seconds, the rocket engine cuts out. What is the maximum height attained by the rocket in miles? How far does the rocket travel in the horizontal direction in feet? What is the total flight time in minutes?
What is the lift (in newtons) by reason of Bernoulli's principle on a wing of area 77 m^2 if the air passes over the top and bottom surfaces at speeds of 270 m/s and 140 m/s, correspondingly.
A person holds a 1.42-N baseball in his hand, a distance of 34.0cm from the elbow joint, Calculate the net torque acting on the forearm and hand
A ball of mass 1.024 g and positive charge q =40.3microC is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of theta=15.0o from the vertical. What is the magnitude of the electric field..
Find the capacitance of the cable for a 100 m length of coaxial cable with radii 0.831618mm and 1.98341 mm. The permittivity of a vacuum is 8.8542 × 10^?12 C^2/N · m^2
An plane and pilot have a total mass of 168 kg. While executing a banked curve of radius 20 m at a speed of 12 m/s
A skier slides horizontally along the snow for a distance of 25 m before coming to rest. how fast was the skier going
A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0° below the horizontal, Determine the work done by the applied force
find the energy in joules of the photons.
A 15-microF capacitor is connected to a 50-V battery and becomes fully charged, what is the voltage across the capacitor's plates after the slab is inserted
Two tiny conducting spheres are identical and carry charges of -18.2 ?C and +50.3 ?C, What is the magnitude of the force that each sphere experiences
What is the gravitational potential energy of an interstellar cloud, with a density of 1000 H2 molecules/cm3, and radius of 10 pc
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), Determine the radius of the path
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