Recent content by Technobuff

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    Put the following waves in order of increasing frequency: Yellow light,

    r o Y g B i v UV Xray. They are already in the right order in the question, D.
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    a 900kg car is travelling at 26.8ms-1 . determine the retarding force required to

    Acceleration = (v^2/2d), = 5.36m/sec^2. Force = (ma), = (900 x 5.36), = 4,824N.
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    How far do the two cars travel in this time?

    135kph = (135,000/3600s) = 37.5m/sec. 150kph = (150,000/3600s) = 41.667m/sec. Distance the police car takes to reach speed = 1/2(vt), = 1/2(41.667 x 7.8), = 162.5 metres. In 7.8s., the speeder will have travelled (7.8 x 37.5) = 292.5 metres. Distance between police car and speeder = (292.5 -...
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    Center of Mass: Dog and Boat physics question?

    Work = (3.5 x 9.8) x 2.6m, = 89.18 joules. 81.98/ (15 x 9.8) = 0.56m. the boat moves, away from shore. Total distance = (6.1 + .56) = 6.66m. from shore.
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    A child in a boat throws a 5.90 kg package out horizontally with a speed of 10.0 m/s?

    (28 + 45) = 73kg. (5.9 x 10) = 59kg/m/s. (59/73) = imparted velocity of 0.808m/sec.
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    can DC 9 volt low amp output produce higher amps somehow?

    Not possible, sorry. I'm sure your inverter has a definite input voltage, probably 12V, and at 400W out at presumably 120V, (400/120) = 3.33A output, and (120/12) = 10, x 3.333 = 33.33A input! Absolute minimum, as this does not include transformation losses. Probably around 38A @12V in, for 400W...
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    can i use higher current rated mobile charger?

    A charging current is controlled by the voltage difference between the charger output, and the battery's terminal voltage. You should check what current is actually flowing using both charger adapters. You could easily find the 1.25mA device is only inputting 1 mA, or the 2mA device is...
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    how does the temp of a thermometer outdoors on a sunny day compare with...

    Measurement of statistical temperatures are done in the shade, in an open area, in a specifically sized and ventilated enclosure at a set height above ground and over grass. If you put a thermometer direct in sun, it will read too high. 4 fits best.
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    can i use higher current rated mobile charger?

    A charging current is controlled by the voltage difference between the charger output, and the battery's terminal voltage. You should check what current is actually flowing using both charger adapters. You could easily find the 1.25mA device is only inputting 1 mA, or the 2mA device is...
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    Physics homework help: A boat leaves the shore with a velocity of 5 mi/h at

    First, you need to calculate how long the boat's journey will be. 57 deg. north of east is 33 deg. compass. Disregard the current. The river is .725 miles wide. So sketch a right angled triangle, with a 33 deg. angle and a known side length of .825 miles. Tan 33 deg= .6494. so .6494 x .825 =...
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    why does the battery of a truck dies if you leave the positive wire

    Something is draining your battery, and a very likely cause is the alternator. Get a current draw check done on the system, if all is in order you should see no more than say 1/2 amp flowing, all systems off. If more than this, try temporarily disconnecting the alternator first, to see if that...
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    Question about a ford escort...need good advice?

    It could be the starter, the battery or the battery connections. If the battery is bad, that might be the battery itself has failed, or the alternator has failed to charge it. However just a single click would indicate your fiance is right.... Better marry him, he seems to know what he's talking...
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    Why does Vacuum hose keep blowing off the break booster of my Volvo?

    It sounds like you have a blockage in the vacuum hose or connection to the engine intake system, or a 1- way valve in the hose, perhaps even in the connector to the BRAKE booster, that clears after a time, is all I can think of. This might explain it being blown off, the booster bucket would...
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    I've 96 toyota camry with 1 cylinder dead out of 4. It is running but has noise. Is

    Did you bother to find out WHY 1 cylinder is not working? It could be SIMPLY FIXED. Yes, it is bad for the engine to keep running it when misfiring. Get it checked out!
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    Front driverside tire leaning inward, why?

    Three weeks? Take it back to whoever did the alignment for checking. Shaking is possibly balance, but could also be serious mechanical problems. Don't take chances.
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