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Question1
A wire has a mass of 1.00 g/cm is positioned on a horizontal surface with the coefficient of friction of 0.250. A current of 3A flows eastward inside the wire as it is moved to the north horizontally. Calculate the direction and least magnetic field experiences by the wire.
Question2Suzie (of mass 76 kg) is roller-blading down sidewalk going 50 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 1.2 seconds. What is Suzie's average acceleration?Answer in units of m/s2
Question3The equation of a transverse wave on a string isy = (5.2 mm) sin [(21 m-1) x + (550 s-1) t]The tension in a string is 21 N.
(a) What is wave speed?
(b) Find out the linear density of this string in grams per meter
A large punch bowl holds 3.80kg of lemonade (which is essentially water) at 20.0?C. A 5.10×10?2-kg ice cube at -10.0?C is placed in the lemonade. What is the final temperature of the system
In this problem you will consider the balance of thermal energy radiated and absorbed by a person. Find the net power radiated by the person when in a room with temperature . Express the net radiated power numerically, to the nearest 10 W
Two blocks A and B of mass D and E respectively are kept in contact on a frictionless table. what is the force exerted by the expirimenter on A
What is its velocity when it reaches the maximum height.
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.250microC on each plate. The plates are 0.500mm apart. What is the surface charge density on each plate
An aluminum-alloy rod has a length of 10.009 cm at 16.200°C and a length of 10.021 cm at the boiling point of water. compute the length of the rod at the freezing point of water
One can not align the apparatus to eliminate entirely the effects of the Earth's magnetic field. calculate the component of the earth magnetic field perpendicular to the entering electron beam
find the magnitude and direction of the resultant force A + B that is applied to the stump. Specify the direction with respect to due east.
Jill of the jungle swings on a vine 6.5 m long. What is the tension in the vine if Jill, whose mass is 61kg, is moving at 2.4 m/s when the vine is vertical
Explain how does a magnitude of the electrical force between a pair of charged particles change when they are brought to half their original distance of seperation?
It shouldn't matter how many calories were consumed or how long the person walked or ran, we are just making a comparison of burning calories while exercising at 5km/h and 15km/h.
Drawing on Erastothenes' method, if two observers are due north and south of each other and are separated by 490 km, what is the circumference of their spherical world if they see the same star on their meridian at altitudes of 29 degrees and 45 degr..
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