Basic Physics Questions and Answers

Determine the amount of power used in holding a 25 kg box,
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Determine the amount of power used in holding a 25 kg box, 1.5 meters above the floor, for 60 seconds.
Calculate the amount of work done when a 1.5 kg book is
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Calculate the amount of work done when a 1.5 kg book is lifted 3.0 m.
A 120lb force is applied on a large object at a 40° angle
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A 120lb force is applied on a large object at a 40° angle with the positive x-axis. An 80lb force is also applied at an 85° angle with the positive x-axis. Which of the following describes the
A ball is thrown at an angle of 45° to the ground. If the
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A ball is thrown at an angle of 45° to the ground. If the ball lands 82 m away, what was the initial speed of the ball? (Round your answer to the nearest whole number. Use g≈ 9.8 m/s².) Vo = m/s
Find the work done by a force F = i +5j + 7k that moves an
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Find the work done by a force F = i +5j + 7k that moves an object from the point (1, 0, 3) to the point (5, 3, 8) along a straight line. The distance is measured in meters and the force in newtons.
Three different forces act on an object. They are: F₁ = < 6,
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Three different forces act on an object. They are: F₁ = < 6, − 1 > F2 = < -4,7> F3 = < -7,3> Find the net force F net on the object (the sum of the forces) Fnet= Find what fourth force, F4 would need
Explain how you would produce a hard surface in the
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Explain how you would produce a hard surface in the followings, Give reason(s) for your selection. 1-A shaft made from 1% Al-1.5%Cr steel which has to operate at a temperature between 350 and 400°C.
A model rocket is launched from the ground at 60 mph. Its
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A model rocket is launched from the ground at 60 mph. Its position in feet at time t seconds is mathematically modeled by S(t)= So + vot - 16t² where Vo is the initial velocity of the rocket in fps
Which detail shows the feature that was MOST prominent when
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Which detail shows the feature that was MOST prominent when continents were first forming? The crust and the top part of the mantle form a hard, stiff shell This shell covers the Earth The continents
During a particular thunderstorm, the electric potential
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During a particular thunderstorm, the electric potential difference between a cloud and the ground is cloud Vground 1.2 x108 Volts. What is the change in potential energy of an electron as it moves
Use the quote to answer the question. "We hold these Truths
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Use the quote to answer the question. "We hold these Truths to be self-evident, that all Men are created equal, that they are endowed, by their CREATOR, with certain unalienable Rights, that among
"Mexicans now established in territories previously
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"Mexicans now established in territories previously belonging to Mexico, and which remain for the future within the limits of the United States...shall be free to continue where they now reside, or to