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Water has a mass per mole of 18.0 g/mol, and each water molecule(H2O) has 10 electrons.(a) How many electrons arethere in 3 liters of water?(A liter is 1.00 multiplied by 10-3 m3)(b) What is the net charge of all these electrons?
A certain light truck can go around a flat curve having a radius of 150 m with a lowest speed of 38.0 m/s. With what maximum speed can it go around a curve having a radius of 87.0 m.
What is the final temperature when .032kg of milk at 11C is added to .16 kg of coffee at 91C. suppose the specific heat capactieis of the two liquids are the same as water, and disregard any energy transfer to the liquid's surroundings.
A 2500-kg sport utility vehicle travelling at 92 km/h can be stopped in 0.25 s if it hits a concrete wall. Assume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after the crash, and..
q1. what is the kinetic energy of an ideal projectile of mass 15.3 kg at an apex highest point of its trajectory if it
A model rocket is fired vertically from rest. It has a net acceleration of 15.5 m/s2. How long after liftoff does the rocket return to the ground
If the two balls started rolling at the same time at a point 1.2 m behind the edge of the table, will they reach the floor at the same time? define.
An insect trapped in a circular groove of radius 12 cm moves along the groove steadily and completes 7 revolutions in 100 s. (a) What is the angular speed, and the linear speed of the motion? (b) Is the acceleration vector a constant vector ? What..
A 5 kg block is dragged on a horizontal surface in a circular path of radius 2 m. what is the work done by friction during one turn
Lightning bolts can carry currents up to approximately 20 kA. We can model such a current as the equivalent of a very long, straight wire. If you were unfortunate enough to be 5.1 m away from such a lightning bolt, how large a magnetic field would y..
A ball is thrown horizontally from the top of a tower 30m high and lands 15m from its base. What is the ball's initial speed
110 grams of boiling water (temperature 100° C, heat capacity 4.20 J/gram/K) are poured into an aluminum pan whose mass is 1000 grams and initial temperature 24° C (the heat capacity of aluminum is 0.9 J/gram/K).
A 2.46×10^4 rocket blasts off vertically from the earth's surface with a constant acceleration. Throughout the motion considered in the problem, suppose that remains constant. Inside the rocket, a 15.10 instrument hangs from a wire that can support a..
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