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A boat has a mass of 6800 kg, Its engines generate a drive force of 4100 N, due north, while the wind exerts a force of 800 N, due east and the water exerts an resistive force of 1200 N due east. What is the magnitude and direction of the boat's acceleration?
A baseball (m = 145 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.8 m/s (102 mi/h). what is the average force exerted on the ball by the bat
A plastic plano-concave lens has a radius of curvature of 50 cm for its concave surface. what is the power of the lens
When the front of the train passes the worker. A 1500 kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 18.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision.
What is the new acceleration of box
Two forces, and act at a point. The magnitude of is 9.80, and its direction is an angle 57.0 above the x-axis in the second quadrant. The magnitude of is 6.2, and its direction is an angle 52.7 below the x-axis in third quadrant.
A merry-go-round accelerates from rest to 0.78rad/s in 34 s. Assuming the merry-go-round is a uniform disk of radius 7.0 m, calculate the net torque required to accelerate it
A candle is on the axis of a 15-cm-focal-length concave mirror, 36 cm from the mirror. Is the image real or virtual
A 0.144 kg baseball is pitched horizontally at +38 m/s and after it is hit by the bat it moves horizontally at -38 m/s.
How much time does it take to lift container with the motor.
Lightbulbs with the power ratings giving in the figure are connected in a circuit as shown. Find the power dissipated to each bulb
Example of either positive freedom negative freedom (N). Indicate which each is by circling the Be able to explain your choice.
A spring (k = 75 N/m) has an equilibrium length of 1.00m. if the mass is not attached to the spring, how far up the slope will the mass move before coming to a rest
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