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True or false
a) The scalar product cannot have unitsb) If the scalar product of two nonzero vectors is zero, then they are parallelc) If the scalar product of two nonzero vectors is equal to the product of their magnitudes, then the two vectors are parallel.d) As an object slides up an incline, the sign of the scalar product of the force of gravity on it and its displacement is negative.
At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. find Is the cyclist ahead of or behind the car
The automobile afterwards undergoes a uniform acceleration of -4 m/s2 because of a red light and comes to rest. It remains at rest for 54.6s and next accelerates back to a speed of 25.6m/s at a rate of 2.85m/s2.
One side of the roof of a building slopes up at 37.0°. A roofer kicks a round, Determine the maximum height the rock reaches above the point where it was kicked
A record breaking steam powered car needs to turn 52.5 liters of water into steam every minute, what power heater is required to do that
Saturn has an equatorial radius of 6.00 107 m and a mass of 5.67 1026 kg. Compute the acceleration of gravity at the equator of Saturn
A rectangular loop (area=0.15m2) turns in a uniform magnetic field with B=0.20T. what is the magnitude of the emf induced in the loop
Three uniform sticks, each of mass , are placed on the floor as follows: stick 1 lies along the axis from = 0 to = 2.0 , stick 2 lies along the axis from = 0 to = 2.0 , stick 3 lies along the axis from = 2.0 to =4.0 .
A uniform 1.5T magnetic field passes perpendicular through the plane of a wire loop 0.3m in area. What flux passes through the loop
A box of mass 29.7 kg slides down an inclined plane without friction. If the acceleration, a, of the box along the direction ofthe plane is 4.1 m/s2, what is the angle q (in degrees) of the plane with respect to the horizontal?
Calculate the number of coulombs of positive charge in 285 cm3 of (neutral) water. (Hint: A hydrogen atom contains one proton; an oxygen atom contains eight protons.)
An object is located to the left of a convex lens whose focal length = +40cm. The magnification produced by the lens = 3.0 m. Calculate the distance through which the object must be moved
A sledge loaded with bricks has a total mass of 17.1kg and its is pulled at constant speed by a rope inclined at 20.0 degrees above the horizontal. the sledge moves a distance of 20.8 m on a horizontal surface. The coefficient of kinetic friction ..
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