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To start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of 310 m/s at 49.0° above the horizontal. It explodes on the mountainside 35.0 s after firing. What are the x and y coordinates of the shell where it explodes, relative to its firing point?
q1. mary is driving her car at 48 kmh. she approaches an intersection just as the traffic light turns yellow. the
The 2007 world record for the men's 100m dash was 9.77 seconds. The third place runner crossed the finish line in 10.07 s. how far behind is the third place runner
A swimmer heading directly across a river 200 m wide reaches the opposite bank in 6 min 40 s. She is swept downstream 480 m. What is the speed of the current
A particle of mass m kg is attached to one end A of a model spring OA of natural length L0 = 1.05 m and stiffness K N/m. The spring is hung vertically with the end O fixed and end A attach to the particle, which moves in a vertical line.
Compute the kinetic and potential energies of an airplane weighing 5.00 tons flying at a height of 30.0 × 103 ft at 500. mph. Give answer in both SI and Engineering English units. Assume standard gravity.
A 40.0 cm long organ pipe is filled with air and is open at both ends. The velocity of sound in air at 0°C is 331 m/s. what is the frequency of the fundamental frequency
A radiator with a constant temperature of 150o C has a surface area of 5.00 m2. Calculate its rate of heat loss by radiation to the environment
Just an instant before reaching the very bottom of a semicircular section of a roller coaster ride, determine the normal force of the track on the car
A scuba diver 18 m below the surface of a lake breathes out, releasing bubbles into the water. How much do the bubbles expand on their way up
A wire 3.00 m long and 0.450 mm2 in cross-sectionalarea has a resistance of 38 at 20°C. If its resistance increasesto 38.3 at 28.0°C, what is the temperature coefficient of resistivity?
It's 37 by road from town to a ski resort, What's the road's average inclination angle
A small, 300g cart is moving at 1.40m/s on an air track when it collides with a larger, 5.00kg cart at rest. What is the speed of the large cart after the collision
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