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A certain speed boat weighs 5,880 N. It can accelerate from 0 to 40 m/s in 5 seconds.
a) What is the mass of the boat?
b) What is the acceleration?
c) How large is the net force acting on the boat?
A uniform ladder 6.58 m long weighing 460 N rests with one end on the ground and the other end against a perfectly smooth vertical wall. Find the normal force that the floor exerts on the ladder
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.7 m/s2 for 4.5 seconds. What is the acceleration of the blue car once the brakes are applied
estimate the % difference, which the use of isothermal compressibility instead of the adiabatic compressibility, would make to the calculated value of the speed of sound (340m/s)
The concepts in this problem are similar to those in Multiple-Concept Example 4, What is the tension in the cable? How much work is done by the tension in the cable
A 5.0-kg object with a speed of 4.0 m/s collides head on with a 10-kg object moving toward it with a speed of 3.0 m/s. what is the post-collision speed of the 5.0-kg object
A large tank is divided into two parts by a partition. The first part contains 5 kg of refrigrtant-134a at 80oC, 900 kPa. Determine the work and heat transfer during this process
The performers in a marching band move in straight rows, maintaining constant side-to-side spacing between them. what is the speed of the outermost marcher
A cubical block of wood 10cm on a side, floats at the interface between oil and water with its lower surface 1.50 cm below the surface
The electric potential V in the space between two flat parallel plates is given by V = 2000x2 , where V is in volts if x, the distance from one of the plates, is in meters. Calculate the magnitude and direction of the electric field at x = 8.30 cm. W..
A parallel-plate capacitor has plates of area A and separation d and is charged to a potential difference, find The inital and final stored energy
A ball thrown straight up at an initial speed of 14.0m/s reaches a maximum height of 7.6m. What fraction of the ball's initial kinetic energy is dissipated by air resistance as the ball moves upward?
A jet airplane is in level flight. The mass of the airplane is m = 8870 kg. At what angle is the airplane banked
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