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  • Fluid Mechanics?

    Your answer: 
    water is flowing through a pipe (area 4.0 cm3) that connects to a faucet adjusted to have an opening of 0.5cm3 if the water is flowing at a speed of 5.0m/s in the pipe what is its speed as it leaves the faucet
    30 mins ago
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  • How do I solve this physics problem?

    Your answer: 
    Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.75 μC charge. (Let A = 1.75 μC, B = 7.20 μC, and C = −4.30 μC.) https://www.webassign.net/sercp9/15-p-013-alt.gif What is the magnitude and direction below the x-axis?
    2 hours ago
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  • The coefficient of kinetic friction for a 22kg bobsled on a track is 0.15.?

    Your answer: 
    What force is required to push it down a 6.0 degree incline and achieve a speed of 64 km/h at the end of 75m?
    2 hours ago
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  • Physics question relating to forces?

    Your answer: 
    Alan Shepard became the 1st astronaut to golf on earth. If the moon's gravitational field strength is 1/6 that on earth, calculate the weight of a 45g golf ball on the moon. Show your work
    4 hours ago
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  • An 83-kg stunt person is performing a stunt in which he jumps from the top of a 31-m-high building into a large air bag to break his fall.?

    Your answer: 
    A. Calculate what the momentum of the stunt person would be at ground level if the airbag were not present. (This is the quantity the air bag must be designed to handle.) B. To catch a person safely, the air bag must deflate, otherwise the person could rebound and land on a harder surface. What is the minimum time in which the air bag must deflate... show more
    4 hours ago
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  • At what speed does the angled wave travel?

    Your answer: 
    One end of the wire is anchored to the side of a building, and the other end is attached at an angle of 27∘ to a light horizontal bar from which a 75-kg sign hangs right above the center of gravity of the sign. The linear mass density of the wire is 0.052 kg/m . If the wind causes the sign to vibrate so that a wave travels along the wire, at what... show more
    4 hours ago
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  • What is the ratio of mass densities?

    Your answer: 
    You have two string segments of equal length, segment 1 of linear mass density μ1 and segment 2 of linear mass density μ2 > μ1. You splice the two together and then tie the combination tautly between two posts. You splice in such a way that, once attached to the posts, the length of segment 1 to the left of the splice is the same as the length of... show more
    4 hours ago
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  • Physics Torque, Equilibrium and Center of Gravity Lab help?

    Your answer: 
    Case 2. Three masses of known value. With the meter stick still supported at its center of mass, hang a 100g mass m1 at the 15cm mark and a 200g mass m2 at the 75cm mark. Hanga 50g mass m3 athe appropriate position so the meter stick is in static equilibrium. What I got. m1 = .1kg r1 = .15m m2 = .2kg r2 = .75m m3 = .050kg r3 = .285m Computer and... show more
    5 hours ago
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  • Please help with physics? Thanks in advance!?

    Your answer: 
    A diver is on a board 1.80 m above the water. She jumps stariaght up at 3.62 m/s. At what speed does she hit the water?
    5 hours ago
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  • Force responsible for the motion?

    Your answer: 
    A particle of mass m has velocity v = α/x, where x is its displacement. Find the force F(x) responsible for the motion. A particle is under the influence of a force F = -kx + (kx^3)/(α^2), where k and α are constants and k is positive. Determine U(x) and discuss the motion. What happens when E = (1/4)kα^2?
    6 hours ago
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  • Block up incline webassign help?

    Your answer: 
    A 5.2 kg block is pushed 3.2 m up a rough 37° inclined plane by a horizontal force of 75 N. If the initial speed of the block is 2.2 m/s up the plane and a constant kinetic friction force of 25 N opposes the motion, ­calculate the following. (a) the initial kinetic energy of the block J (b) the work done by the 75 N force J (c) the work done by... show more
    6 hours ago
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  • Incline with spring pulley problem?

    Your answer: 
    A block of mass m = 3.50 kg situated on a rough incline at an angle of θ = 37.0° is connected to a spring at the top of the incline, having a spring constant of 100 N/m. The pulley is frictionelss. The block is released from rest when the spring is unstretched. The block moves 12.5 cm down the incline before coming to rest. Find the coefficient of... show more
    6 hours ago
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