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A fish swimming in a horizontal plane has velocity (4.00i + 1.00j) m/s at a point in the ocean where the position relative to a certain rock is r (initial)=(10.0i - 4.00j)m. After the fish swims for 20.0 s, its velocity is v=(20.0i - 5.00j) m/s. 1)What are the components of acceleration? 2) What is the direction of acceleration with respecting to the unit vector i? 3) If the fish maintains constant acceleration, where is it at t=25.0 s, and in what direction is it moving?
When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 5.05 m. A child, who is holding the same gun in a horizontal position, is also sliding down a 45° incline ..
A 46g marble moving at 2.3m/s strikes a 24g marble at rest. What is the speed of the first marble immediately after the collision
While an elevator of mass 824 kg moves downward, the tension in the supporting cable is a constant 7736 N, What is the elevator's speed at t = 4.10 s
calculate the power transferred from the preamplifier to a power amplifier if the voltage is 1.5 volts and the input
A battery has an internal resistance of 0.60 ?. A number of identical light bulbs, each with a resistance of 9.6 ?, How many bulbs are connected
A skier starts from rest at the top of a hill that is inclined at9.5°with the horizontal. The hillside is 150 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of..
In the quark model of fundamental particles, a proton is composed of three quarks: two "up" quarks, each having charge +2e/3, and one "down" quark, having charge -e/3. Suppose that the three quarks are equidistant from one another. Take the distance ..
An electron is released from rest at a perpendicular distance of 10.8 cm from a line of charge on a very long nonconducting rod. That charge is uniformly distributed, with 8.1 μC per meter. What is the magnitude of the electron's initial acceleration..
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.360 s to passthis window, which is 2.00 m high. How far is the top of the windowbelow the windowsill from which the flowerpot fell?
A light bulb emits light uniformly in all directions. The averageemitted power is 150.0 W. At a distance of 4 m from the bulb,determine (a) the average intensity of the light,(b) the rms value of the electric field, and(c) the peak value of the elect..
question1a softball of mass m 0.195 kg is pitched at a speed v0 27.3 ms. due to air resistance by time it reaches
A transformer with 340 turns in its primary coil and 30 turns in its secondary coil is designed to deliver an average power of 1390 W with a maximum voltage of 67 V
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