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A supertanker (mass = 1.61E+8 kg) is moving with a constant velocity. Its engines generate a forward thrust of 7.47E+5 N. Determine the magnitude of the resistive force exerted on the tanker by the water.
If you are in a car accident with an initial speed of 119 km/h and you are stopped by an airbag that inflates from the dashboard, over what distance should the airbag stop you for you to survive the crash.
How long would it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 335m.
Two speakers emit sound waves with frequency of 418 Hz. They are driven by the same oscillator so that they are in phase with each other. How far apart are the antinodes in that standing wave
How much time has elapsed between the two measurements.
A pendulum clock that works perfectly on Earth is taken to the Moon. (a) Does it run fast or slow there? (b) If the clock is started at 12:00 midnight, what will it read after one Earth day (24.0 h)? suppose that the free-fall acceleration on the ..
A professor's office door is 0.94 wide, 2.2 high, 4.0 thick; has the mass of 23, and pivots on frictionless hinges. A "door closer" is attached to door and top of the door frame. When the door is open and at rest, the door closer exerts a torque of 5..
A mountain climber jumps a 2.4 -wide crevasse by leaping horizontally with a speed of 7.2. find the height difference between the two sides of the crevasse
The driver of an 1800 {kg} car travelling on a horizontal road at 100 kmh suddenly applies the brakes. Because of a slippery pavement, the friction of the road on the tires of the car, which is what slows down the car, is 20.0 percent of the weight o..
A 110 granite cube slides down a 45 degree frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest. How high above the table should the granite cube be released to give the steel cube a..
A 36 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.1 m-long string. The balls undergo a head-on, perfectly elastic collision, after which 110 g ball swings out to a maximum angle theta_..
A uniform solid flywheel of radius 1.4m and mass 15kg rotates at 2.4 rad/s. What is the magnitude of flywheel's angular momentum in kg.m^2/s.
Consider an experiment where a subject lands during two conditions from a height of 0.2 m. During the first landing condition, the subject lands 'stiffly' (e.g., very little knee flexion).
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