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A 10 kilogram block of ice slides down a frictionless ramp that goes from a ledge 10 meter above the ground to the ground. The ramp is at an angle of 20o with respect to the ground. Determine what is the speed of the ice by the time it gets to the ground?
a lead shot is projected from the ground level with a velocity u at an angle o to the horizontal. given that the times
a 1600 kg car is pulling a 375 kg trailer. together the car and trailer have an acceleration of 2.15 ms2 directly
An alert physics student stands beside the tracks as a train rolls slowly past. calculate the speed of the train
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.0 m/s2. How fast will the automobile be traveling at that instant
A laser used in a holography experiment has an average output power of 4.93 mW. Calculate the number of photons in each pulse
A futuristic design for a car is to have a large disklike flywheel within the car storing kinetic energy. The flywheel has mass 370 kg with a radius of 0.50 m and can rotate up to 540 rev/s.
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 434 N and F2 = 387 N. What is the resultant of these two forces
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 4.4 minutes
A bimetallic strip (68cm by 1cm by 0.01cm) has aluminum (alpha = 23 x 10^-6 1/C) on one side has steel (alpha = 12 x 10^-6 1/C) on the other. What change in temperature is required to change the strip into a full circle
Two carts with masses of 12.5 kg and 4.5 kg, respectively, move in opposite directions on the frictionless horizontal track with speeds of 8 m/s and 5 m/s, respectively. The carts stick together after colliding head-on. Find the final speed of the..
A 1328.0 g mass is on a horizontal surface with μk = 0.32, and is in contact with a massless spring with a force constant of 550.0 N/m which is compressed. Calculate the distance the spring was compressed
Suppose you are on Mars, where the free-fall acceleration is just 3.7 m/s^2. How far can you hit a golf ball with your club from a 300 meter elevated cliff, How long will the ball fly before hitting the ground
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