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Consider a rocket-powered hockey puck, and assume the rocket produces a constant acceleration when the rocket is on. Experiment shows that, when the puck starts from rest and the rocket is ignited such that the puck is propelled across a horizontal frictionless surface, it covers a distance of 0.56m in 1.0s. The puck is placed at the top of a frictionless ramp such that, when the rocket is ignited, the puck is propelled by the rocket down the ramp surface. The ramp has a vertical height of 3m and a horizontal length of 4m. Given that the acceleration of the rocket is +1.12 m/s^2 and the overall acceleration of the puck down the ramp surface is 7.0 m/s^2 There is a 15m drop from the bottom end of the ramp to the ground. Determine the impact location and the impact speed of the puck.
The hunter uses a small powerboat that moves at a maximum speed of 14 km/h with respect to the water. Illustrate what is the minimum time necessary for crossing?
A turntable that spins at a constant 73.0 {rm rpm} takes 3.60 {rm s} to reach this angular speed after it is turned on. Find its angular acceleration (in {rm rad/s^{2}}), suppose it to be constant, and the number of degrees it turns through while ..
A cubic centimeter in a typical cumulus cloud contains 50 to 500 water drops, which have a typical radius of 10 µm. How much mass does the water in the cloud have
If air resistance & other effects are ignored how far away did the shell hit.
A home (volume = 1000 m3) built in 1946 has urea formaldehyde insulation, which outgases into the home at a rate of 5 ng/hr, What is the steady state concentration (C) of formaldehyde in the home
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
Three children each of weight 356N make a long raft by lashing together logs of diameter 0.30m and length 1.8m. how many logs will be needed to keep them afloat in fresh water. take density of the logs to be 800kg/m^3.
Heat is extracted from a certain quantity of steam at 100 degrees celsius. Thus the steam changes into ice at 0 degrees celsius. If this energy were used to accelerate the ice from rest, what would be the linear speed of the ice.
a lower tank contains water while an upper tank contains air with a negligable concentration of water vapor. what mass of water vapor diffuses through the tube each hour
Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 1.60 m long conducting wire. estimate the tension in the wire.
The position function x(t) of a particle moving along an x axis is x = 4.0 - 4.5t2, with x in meters and t in seconds. 1) At what negative time does the particle pass through the origin? 2) At what positive time does the particle pass through the ..
The top of a refrigerator has an area of 0.6m2. The height of the refrigerator is 180 cm. What volume does refrigerator occupy in cubic meters.
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