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735 g of salt is placed into 400 mL of water and stirred thoroughly.
(a) How much salt dissolves into the water?
(b) How much salt is not dissolved?
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.3 N-s and the ball starts with an initial horizontal velocity of 3.8 m/s to the west and leaves with a 5.1 m/s velocity to the east
A ray of light is incident on the outer glass wall of an aquarium which have a refractive index of 1.51. If the reflected portion of the light is completely polarized at what angle to the normal does the ray enter the water
A group of backpackers, after three days hiking, are 35 mi west of their starting position. Find the magnitude and the direction of their displacement on the third day
A friend of yours who starts out at the same age as you travels to the alpha centauri solar system which is 5.20 light-years away. How much older than your friend are you now
Mitch is driving the Batmobile (which he stole). He is driving at a constant velocity of 40 m/s. What is the acceleration of the Batmobile
A crate with mass 36.0 initially at rest on a warehouse floor is acted on by a net horizontal force of 142. Explain how far does it travel in 12s and what is its speed at that time?
Two events occur in an inertial system at the same time, but 8145 km apart. What is the time difference between the two events in this second inertial system
Two children, with masses 35kg (on the left) and 44kg (on the right), sit at opposite ends of a 3.9mlong seesaw with mass 22kg, With the seesaw horizontal, find the net torque on the seesaw
A racquet ball with mass m = 0.237 kg is moving toward the wall at v = 12 m/s and at an angle of ? = 30° with respect to the horizontal. What is the change in kinetic energy of the racquet ball
A cable is used to raise a 29kg urn from an underwater archeological site. There is a 21 N drag force from the water as the urn is raised at a constant speed.
A tank is in the shape of an inverted cone, having height h = 2.50 m and base radius r = 0.750 m. If water is poured into the tank at a rate of 15 L/s, how long would it take to fill the tank.
the sound from a truck moving at 17.00 m/s reflects from a cliff and is heard by an observer on the truck. What is the change in frequency for a wave
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