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A rolling ball has an initial velocity of 1.6 meter per second if the ball has a constant acceleration of -0.778 m/s2. Determine what is its velocity after 3.6 second.
A20 kg wagon is pulled along the level ground by a rope inclined at30 degrees above the horizontal. A friction force of 30 N opposesthe motion. How large is the pulling force if the wagon is moving with (a) constant speed, and (b) an acceleration of ..
In a game of football outdoors on a cold day, a player will begin to feel exhausted after using approximately 7.8x105 J of internal energy. What is the magnitude of the heat that he has lost
A charge of -2.615"mu"C is located at (2.915m , 4.400m ), and a charge of 1.705"mu"C is located at (-2.641m , 0). Find the electric potential at the origin. Express your answer using three significant figures
What is the angular momentum of a 3.2 kg uniform cylindrical grinding wheel of radius 12cm while rotating at 1400 rpm.
A muon is an elementary particle that can be interpreted as the electron's big brother. Calculate its "Compton Wavelength"
A baggage handler drops your 8.70 suitcase onto a conveyor belt running at 1.60 . The materials are such that = 0.560 and = 0.170. How far is your suitcase dragged before it is riding smoothly on the belt?
Calculate the force a mother must exert to hold her 12.0 kg child in an elevator accelerates upward at 0.850 m/s2
The Moon and Earth are bound together by gravity. If, instead, the force of attraction were the result of each having a charge of the similar magnitude but opposite in sign, discover the quantity of charge that would have to be placed on each to prod..
A rectangular coil of 100 turns measure 40cm by 20cm. This coil is placed next to an electromagnet which is switched on, what are the induced voltage and current in the coil
Your friend has a near point of 114 cm, and she wears contact lenses that have a focal length of 35.2 cm. How close can she hold a magazine and still read it clearly
We move a square loop of wire 2.1 cm on a side into a region of uniform magnetic field of 1.0 T with the plane of the loop, find the force on the loop as it just enters the magnetic field region
a toy car of mass 3.0 kg is stationary and a child rolls a truck of mass 3.5kg straight toward it with a speed of 7.0
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