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An artillery shell is fired with a minimal velocity of 420 m/s at 53o above the horizontal. To clear an avalanche, it explodes on a mountain side 30 s after firing.
What is the X-coordinate relative to it's firing point? What is the Y-coordinate?
An airplane flies 200 km due west from city A to city B and then 295 km in the direction of 35.5° north of west from city B to city C, In straight-line distance, how far is city C from city A
When 5.30* 10^5 J of heat is added to a gas enclosed cylinder fitted with a light frictionless piston maintained at atmospheric pressure, estimate the work done by the gas
the pistons in an internal combustion engine undergo a motion that is approximately simple harmonic. if the amplitude
An airplane propeller is 3.08 in length (from tip to tip) and has a mass of 152. What is the propeller's angular speed after making 5.00
A 0.200 kg hammer is moving horizontally at 8.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
Your spaceship lands on an unknown planet. To determine the characteristics of this planet, Express the planet's mass in terms of the earth's mass
On a cool morning, when the temperature is 14 degrees C, you measure the pressure in your car tires to be 30 psi. After driving 50 mi on the freeway, temperature of your tires is 52 degrees C.
A Ball Rolling Uphill. A bowling ball rolls without slippingup a ramp that slopes upward at an angle beta to the horizontal. What is the acceleration of the center of mass of the ball
A 100-turn, 4.0-cm-diameter coil is at rest in a horizontal plane. What is the induced emf in the coil
A transformer is to be used to provide power for a computerdisk drive that needs 6.0 V (rms) instead of the 120 V (rms) fromthe wall outlet. Find the current in the secondary
A spring has a spring constant of 40N/m. How much work is required to stretch the spring 3.5cm from its equilibrium position
A 0.50-kg croquet ball is initially at rest on the grass. When the ball is struck by a mallet, the average force exerted on it is 225 N. how long was the mallet in contact with the ball
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