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Q1. A 3000-kg blue truck travelling east collides and sticks to a 4000-kg orange truck travelling with a speed of 7.3 m/s to the west (define easterly direction to be the positive direction). Immediately after the trucks collide they move as one object with a velocity of -1.2 m/s. What was the blue truck's velocity before collision?
Q2. A kayaker needs to paddle north across a 200 wide harbor. The tide is going out, creating a tidal current that flows east at 2.0. The kayaker can paddle with a speed of 3.0. In which direction must he paddle in order to travel straight across the harbor.
Find out the speed of a 56.7 kg thrill seeker at the bottom of the slide, assume no friction. If the thrill seeker has a speed of 24.1 m/s at the bottom, find out the change in mechanical energy due to friction.
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A car dealer claims that his product will accelerate at a constant rate from rest to a speed of 200 km/hr in 8s. What estimated distance will the car travel.
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Two speakers, 6.00 m apart, are driven by the same audio oscillator so that each one produces a sound consisting of two distinct frequencies, 1000 Hz and 1360 Hz. The speed of sound in the room is 350 m/s.
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to five before coming to rest momentarily.
What is frequency of the rotational motion for the wheel
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What is the focal length of this mirror. If the object is 25 cm in front of the mirror, what is the image distance.
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