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when it reaches the buoy?A speedboat moving at 40.0m/s approaches a no-wake buoy marker 100m ahead. The pilot slows the boat with a constant acceleration of -3.15 m/s^2 by reducing the throttle.
(a) How long does it take the boat to reach the buoy?
(b) What is the velocity of the boat?
A car (m1 = 900) moving south with a speed v1 = 25 collides with a truck (m2 = 1500) moving at an angle of 30 degrees south of west with a speed v2= 20. What is the magnitude and direction of their final velocity
Two 40.0 µF capacitors in parallel are connected across a sinusoidal ac generator operating at 60.0 Hz. how much current passes through each capacitor
A 70 kg painter holding a 15 kg paint is climbing up a 30 m-long ladder, which weighs 20 kg, against a frictionless wall at an angle of 60 degree. how far could the painter go up along the ladder
A box of weight Fg=2N accelerates down a rough plane that isinclined at an angle %u03C6=30 degrees above the horizontal, What is the work Wgrav done on the box by gravity
A certain type of laser emits light that has a frequency of 4.9 × 1014 Hz. How many wavelengths are there in one pulse
A professional boxer hits his opponent with a 1025-N horizontal blow that lasts 0.160 s. determine the opponent's final velocity after the blow
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other? (Hint: Use charge conservation and solve for one of the initial charges. You would end up with a quadratic equation. The solutions g..
How long does it take the crate to hit the ground. suppose that the plane continues to fly with the same velocity.
An object is placed to the left of a convex lens and on the optical axis. calculate the magnification of the image formed by the lens
Two point charges Q1 = -25 micro Coulombs and Q2 = +50 micro Coulombs, are separated by a distance of 12 cm. The electric field at the point P is zero. How far from Q1 is P?
A 0.25-kg mass is hanging from a spring with spring constant 15 N/m. What is the resulting angular frequency of the oscillation
A space station in the form of a large wheel, 311m in diamter, rotates to provide an "artificial gravity" of 5.2m/s^2 for people located on the outer rim. Find the rotational frequency of the wheel
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