• Can anyone help me solve this physics problem?

    Your Answer: 
    Two blocks with masses m1 and m2 start at opposite ends of a frictionless u-shaped track, although not necessarily at the same height as one another. After being released from rest, they slide down the track and then collide with one another where the track is level. After the collision, both blocks are at rest. Block 1 descends a total height of h... show more
    21 mins ago
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  • Physics Question: Work and Springs?

    Your Answer: 
    35 mins ago
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  • Calculate the minimum energy needed to excite the HCL molecule into rotation.?

    Your Answer: 
    The rotation of a 1H35Cl molecule can be pictured as the orbital motion of the hydrogen atom at a distance of 127 pm from the stationary chlorine atom. Suppose that the molecule rotates only in a plane. Calculate the minimum energy needed to excite the molecule into rotation. What, apart from 0, is the minimum angular momentum of the molecule?
    48 mins ago
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  • Calculate the broadcast wavelength of the radio station 101.9 FM.?

    Your Answer: 
    A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz (MHz), where 1MHz=106Hz. Express your answer in meters to four significant figures.
    1 hour ago
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  • Physics Homework Help?

    Your Answer: 
    A ball with an initial velocity of 9.6 m/s rolls up a hill without slipping. -Find the height - Repeat the calculation for the same ball if it slides up the hill without rolling
    2 hours ago
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  • Physics question...please help? Two football players collide head-on in midair while chasing a pass...?

    Your Answer: 
    Two football players collide head-on in midair while chasing a pass. The first player has a 90.5 kg mass and an initial velocity of 6.10 m/s, while the second player has a 125 kg mass and initial velocity of -5.4 m/s. What is their velocity (in m/s) just after impact if they cling together? (Indicate the direction with the sign of your answer.)
    2 hours ago
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  • Physics Homework Help please?

    Your Answer: 
    A ball with an initial velocity of 9.6 m/s rolls up a hill without slipping. Treating the ball as a spherical shell, calculate the vertical height it reaches, in meters. Do you use the equation: 1/2(mvi)^2 + 1/2(Iw)^2 + mghi = 1/2(mvf)^2 + 1/2(Iw)^2 + mghf - How do you plug into the equation if there is only one given variable?
    3 hours ago
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  • Physics 1 (Calculus-Based) Homework Help?

    Your Answer: 
    An automobile with tires that have a radius of 0.260 m travels 88000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear?
    3 hours ago
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  • Can i please get hlelp i dont get where i messing up?

    Your Answer: 
    Light pollution is caused by many lights being on in a concentrated area.Think of the night sky in the city compared to the night sky in the country. Light pollution can be a problem in cities, as more and more bright lights are used in such things as advertising and office buildings. The intensity of illumination is inversely proportional to the... show more
    3 hours ago
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  • Physics Kinematics Problem?

    Your Answer: 
    A forester aims his gun at a hole in a tree that is 8.0 m above the gun. The base of the tree is 18 m away. The speed of the paintball as it leaves is 50 m/s. How far below the knothole does the paintball strike the tree? I keep getting 0.72 m below the knothole, which is incorrect
    4 hours ago
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  • Physics help? Conservation of Energy and Momentum?

    Your Answer: 
    What is the maximum angle hill that an SUV (2430 kg) with an attached load of 1317 kg can climb at a speed of 59.5 km/h if this SUV has an engine marked as 208.7 hp (hp is the abbreviation for horsepower)? Assume that the force of air resistance is F=0.3 v^2 (for a force in Newtons and a speed in m/s) and take 1 hp = 745.7 W. Express your answer in... show more
    4 hours ago
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  • Please help?

    Your Answer: 
    sphere of mass 3.0x10-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 37o with the vertical. Find (i) the magnitude of the push and (ii) the tension in the cord.
    4 hours ago
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  • Please help?

    Your Answer: 
    projectile is fired with initial speed v at an angle 300 above the horizontal from a height of 40m above the ground. The projectile strikes the ground with a speed of 1.2v.Find v
    5 hours ago
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  • Creating a formula for a sales/warehouse order?

    Your Answer: 
    So a truck enters a warehouse to pick up an order. An order consists of Pallets, "Picks", and "SKU's". a pallet is full of cartons of an item (i.e a pallet of lettuce cartons). A pick is when you take one carton from the intial full pallet to be removed, or replaced with another item (i.e i need a pallet of lettuce but... show more
    5 hours ago
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  • Physic is nuts Help?

    Your Answer: 
    The velocity of a bicycle is changed from -1.2 m/s to -6.5 m/s during 25 mins.what is its acceleration ?
    5 hours ago
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