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In the 1994 movie Speed, a bus wired with explosives must maintain a speed of 50mph or the bus will explode. In one of the movie's climactic scenes, the bus jumps a 50 ft. gap in the freeway. If the bus speeds up to 70mph before reaching the gap, what is the minimum launch angle required for the jump to be successful? Does the movie portray the physics adequately? You will probably need ti use the following trig identity: 2sin(theta)cos(theta)=sin2(theta).
The engine of an aircraft propeller delivers an amount of power 177 hp to the propeller at a rotational velocity of 2390rev/min, How much torque does the aircraft engine provide
Josh starts his sled at the top of a 2.3m -high hill that has a constant slope of 25 ?. How far from the hill does he end up
You want to lift a heavy box with a mass of 98 kg using a two pulley system. If you lift the box by 1 m, how much work is done by gravity
a solid sphere of brass (bulk modulus of 1.4x10^11 N/m^2) with a diameter of 2.3 m is thrown into the ocean. by how much does the diameter of the sphere
Antennas for radio transmission and reception are particularly effective if they're about a half-wavelength long. What's the appropriate length for an FM antenna
Find out the maximum altitude reached by the rocket.
Perform the following unit conversions for parts (A) in the table below (B) through. Show your work using a step-wise approach.
Electrons in a television's CRT are accelerated from rest by an electric field through a potential difference of 2.9 kV, What is the speed of the electrons
Ricardo walks 22.0 in a direction 50.0 west of north. Jane walks 20.0 in a direction 30.0 south of west. They after that stop and turn to face each other.
What is the Kinetic Energy of the sphere when it is 4.70cm from the line of charge if the only force on it is the force exerted by the line of charge
A spaceship is visiting Planet X. While descending to the surface,its rockets produce 25 kN of upward thrust and the spaceship%u2019s speed decreases at a rate of 0.15 m/s2. What is the mass of the spaceship
An electron is accelerated to speed of 1.5*10^8 m/s. at that speed, compare the relativistic results to classical results for , find the electron rest energy according to the relativistic laws
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