How many grams of ammonium fluoride are required to neutralize 972 'm of 0.00327 M sulfuric acid
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A 2563-kg van runs into the back of a 826-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van.
You need to move a 128-kg sofa to a different location in the room. It takes a force of 99 N to start it moving. What is the coefficient of static friction between the sofa and the carpet?
A projectile is fired such that the vertical component of its velocity is 49 m/s. The horizontal component of its velocity is 60 m/s. a) how long does the projectile remain in the air? b) what horizontal distance does it travel?
A baseball is hit 1.3 m above home plate. The bat sends it off at an angle of 30 degrees above the horizontal at a speed of 45.0 m/s. The outfield fence is 100 m away and 11.3 m high. Does the ball clear the fence?
While standing on an open bed of a truck moving at 35 m/s, and archer sees a duck flying directly overhead. The archer shoots an arrow at the duck and misses. The arrow leaves the bow with a vertical velocity of 98 m/s. a) how long does it remain in the air b) the truck mainta...
A shoe flung into the air such that at the end of 2.0 m/s it is at its maximum height moving at 6.0 m/s. How far away will it be from the thrower when it returns to the launch altitude.
Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the speed of a 94-kg per...
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