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Q. A 1.50-kg block of wood sits at the edge of a table, 0.782 m above the floor. A 0.0105-kg bullet moving horizontally with a speed of 770 m/s embeds itself within the block. What horizontal distance does the block cover before hitting the ground?
Q. You are standing 2.5 {rm m} directly in front of one of the two loudspeakers shown in the figure. They are 3.0 {rm m} apart and both are playing a 686 {rm Hz} tone in phase. As you begin to walk directly away from the speaker, at what distances from the speaker do you hear a minimum sound intensity? The room temperature is 20 ^circ {rm C}.
A chair of weight 135 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 38 directed at an angle of 42 below the horizontal and the chair slides along the floor.
The first electron has the initial velocity v0 that makes an angle θ=45° with the lower plate and has a magnitude of 7.53×106 m/s. would this electron strike one of the plates? If so, what is the horizontal distance from the left edge? If not enter t..
The triangular loop of wire in the drawing carries a current of I= 6.91 A. A uniform magnetic field is directed parallel to the side AB of the triangle and has a magnitude of 2.77 T.
Find out line linking the two point charges
At a right angle to a magnetic field. The acceleration of gravity is 9.81 m/s2. What is strength of the magnetic field necessary to exactly balance the weight of the proton and keep it moving horizontally.
What is an acceleration of two falling sky divers (mass 120.0 kg including parachute) while the upward force of air resistance is equal to one-fourth of their weight.
For this experiment you will require a stand, string, a paper or plastic cup, a nail, a roll of paper towels or similar sized paper, coloured sand, or some other dry powdery product, and a ruler or measuring tape.
What is the strength of an electric field at a distance r from the center, inside the sphere. Assume the sling thrower could gradually increase the speed of the stone.
What are the components of the ships displacement
Find out the magnetic field strength
A person driving her car at 49 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection .
Calculate the verage speed and time lead by the runner using the definition of average speed.
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