An ocean-going barge is 50.0 m long and 20.0 m wide and has a mass of 145 metric ton. Will the barge clear a reef 1.50 m below the surface of the water?
Answers
in order to float. 145 metric tons= 145,000 kilograms. Use the rough-but-close rule
of thumb that 1 liter of water has 1 kilogram of mass. So the barge displaces 145,000
liters, which is also 145 cubic meters of water.
(Length) x (width) x (depth of the part under water) = 145 cubic meters
Draft of the barge (depth under water) = 145 / (50 x 20) = 145/70 = 2.07 meters.
No, it will not clear the reef 1.5 meters below the surface. Either the barge will shave off the top 0.57 meter of the reef, or else the reef will do serious damage to the barge. In any case, there will be a situation.
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Answers
The mechanical advantage of the lever shown in the question is 1.27. Mechanical advantage is the force amplified by a mechanical tool. Thus, the correct option is B.
What is Mechanical advantage?
Mechanical advantage is the measure of the force amplification which is achieved by using a tool such as, a mechanical device or machine system. The mechanical device trades off input forces against the movement to obtain a desired amplification in the output force of the system.
Mechanical advantage of the lever is simply the ratio of the effort arm to the load arm. Effort arm is the distance from the pivot to the point of application of the force while the load arm is the distance of the lord from the pivot point.
Therefore, the effort arm is 0.27m while the load arm is 0.2 m. Mechanical advantage is calculated through the formula:
MA=effort arm/load arm
MA = 0.27/0.2
MA = 1.35 which is close to 1.27
Therefore, the correct option is B.
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Your question is incomplete, most probably the complete question is:
What is the mechanical advantage of the level shown below?
A. 0.79
B. 1.27
C. 2.6
D. 3.67
Answer:1.35
Explanation:
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1. B
2. A
3. B
4. A
5. C
6. B
7. B
8. A
Answers
Answer:
Displacement = 1725m
Explanation:
Final answer:
Using the equations of motion, we find that the plane covers a distance of 850 meters while it is accelerating from a velocity of 50 m/s to 65 m/s at the rate of 0.5 m/s².
Explanation:
You're asking about a motion problem in physics that requires using the equations of motion to solve. In this case, the formula we would use is v² = u² + 2as, where 'v' is the final velocity, 'u' is the initial velocity, 'a' is acceleration, and 's' is the distance covered.
Given:
Initial velocity (u) = 50 m/s
Final velocity (v) = 65 m/s
Acceleration (a) = 0.5 m/s²
We are asked to find the distance covered (s). Rearranging the formula to find 's', we get: s = (v² - u²) / 2a
Substituting the given values, the distance covered (s) = (65² - 50²) / (2*0.5) = 850 meters. So, the plane covers a distance of 850 meters while it is accelerating.
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b. potential and kinetic energy
c. sound, light, and heat energy
d. sound, light, and chemical energy
Answers
Sound, light and heat energy.
Hope this helped :)
Answers
Answers
Answer:
true
Explanation:
true