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A projectile is fired from a submarine traveling horizontally at 20 m/s with respect to the water as shown in the figure below. According to an observer on the submarine, the projectile is fired at 45° with an initial velocity of 60 m/s.After firing the projectile, the submarine continues to travel at 20 m/s.
According to an observer watching from a boat that is stationary with respect to the water, what will be the angle ? that the projectile makes with respect to the horizontal when it is launched?
A tugboat captain also sees the submarine fire the projectile, but to him is looks like the projectile is moving straight up (i.e. 90° above the horizontal). What is the velocity of the tugboat relative to the water?
A cubical box is filled with sand and weighs 798 N. We wish to "roll" the box by pushing horizontally on one of the upper edges. What minimum coefficient of static friction between box and floor is required
A particle starts from rest at x = 0 and moves for 15.7 s with an acceleration of +2.25 cm/s2. find the position of the particle at the end of this motion
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 e 10^6 m/s. What is the distance of closest approach? Please show work in the answer because I am attempting to learn this.
A block of ice weighs 100 N. You can lift the block vertically a distance of 2 m. You can also push the same block up a ramp that is 4 m long, What is the increase in the block's gravitational potential energy in each case
An eagle is flying horizontally at 5.7 m/s with a fish in its claws. How much time passes before the fish's speed doubles
A diver springs upward from a board that is three meters above thewater. At the instant she contacts the water her speed is9.00 m/s and her body makes an angleof 75.0° with respect to thehorizontal surface of the water. Determine her initial velocity..
A projectile is fired in such a way that its horizontal range is equal to 4.5 times its maximum height. What is the angle of projection?
A projectile is launched from 1.5 m above the ground at some angle theta. what was its initial velocity and the angle of projection theta
A bullet is fired into a large stationary absorber and comes to rest. What is the weight of the bullet in kg
The drive propeller of a ship starts from rest and accelerates at 2.70 x 10-3 rad/s2 for 3.10 x 103 s. For the next 1.30 x 103 s the propeller rotates at a constant angular speed. Find the total angular displacement of the propeller
A single-turn square loop of side L is centered on the axis of a long solenoid. In addition, the plane of the square loop is perpendicular to the axis of the solenoid. The solenoid has 1100 turns per meter and a diameter of 8.00 cm, and carries a ..
problem 1 packed beds with adsorbent material are frequently used in pharmaceuti- cal industry for affinity
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