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Questions
1. Define mass and volume.
2. What happens if an object has more mass than the air or water it displaces?
3. In three to five sentences, explain why ships or boats float.
4. What happens to the egg when placed in the beaker of fresh water?
5. What happens to the egg when placed in the beaker of salt water?
6. In three to five complete sentences, explain why the egg sinks in water but floats when salt has been added to the water. Remember to use proper grammar and mechanics when writing your sentences.
7. What happens to the density of a liquid when salt is dissolved in it?
8. Why is a ship less likely to sink from the amount of cargo it is carrying when it is in the ocean rather than a lake?
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, Find the net downward force on the tank's flat bottom
A particle is traveling in a straight line at a constant speedof 25.0 m/s. Suddenly, a constant force of 15.0 N acts on it, bringing it to a stop in a distance of 62.5 m. (a) What is the direction of the force? (b) Determine the time it takes for ..
a 26.5 kg boy slides down a steep slide at a water park that is 10.9 m long and angled 75 degrees above the ground. what is the magnitude of the boys acceleration as he travels down the slide
Assuming constant acceleration, how many meters did the car travel during that time? (Use 1mph = 0.4469 m/s)
A logging boat is towing a log that is 2 m in diameter and 8 m long at 4 m/s through water. Estimate the power required if the axis of the log is parallel to the tow direction.
q1. a child goes down a playground slide with an acceleration of 1.20 ms2. compute the coefficient of kinetic friction
when the voltage is adusted so that the plates are in the same position they would be in when the 50 mg mass is placed
What is the magnitude of the force on the bead. find the charge of the particle.
A fisherman reels in 16.0 m of linewhile pulling in a fish that exerts a constant resisting force of20.0 N. how much work is done on it by the tension in the line
Suppose you are 80 cm from a plane mirror. How large an area of the mirror is utilized to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 4.4 mm?
Design limitations require that point B drop not more than 30 cm below the horizontal dashed line AC as the scoreboard is attached.
a boeing 747-8 with wingspan of 65.5 m is cruising at 289 m/s over northern canada, What is the potential difference between the tips of the wings
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