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A bullet of mass 0.04kg moving with a speed of 90ms−1 enters a heavy wooden block and is stopped after a distance of 60cm. What is the average resistive force exerted by the block on the bullet?
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Problem 3 (Sub-CPMK3, 20%)Two batteries and three resistors are connected, as shown in the figure.6.0V9.0V5.0Ω 4.00Ω2.00ΩWhat is the current that flows in each battery when:a. The switch is closed.b. The switch is opened.
Problem 1: The following will test your basic knowledge of charges and how they behave when in the presence of other charges/electric fields. W1128A8ndt 1. Calculate the number of protons present in a nucleus that possesses a net charge of 3.20410-18 C.2. Calculate the magnitude of the Coulomb force between a Hydrogen nucleus (housing one proton and its single electron) if they are on average a distance of 5.29 x 10-11 m apart. Will they be attracted or repelled from each other? (HINT: Negative forces indicate attraction and positive indicate repulsion.)3. Calculate the acceleration magnitude and direction an electron would experience if it were placed in the presence of an electric field E = -250i N/C.
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Question Text | Problem 29.329 of 13ConstantsPeriodic TablePart AWhen a car drives through the Earth's magnetic field, an emf is induced in its vertical 80.0 cm-long radio antenna.If the Earth's field (5.0 × 10^5 T) points north with a dip angle of 47°, what is the maximum emf induced in the antenna and which direction(s) will the car be moving to produce this maximum value? The car's speed is 34.7 m/s on a horizontal road.Express your answer using two significant figures.A?EmaxmVSubmitRequest AnswerPart BThe car direction should be east only.The car direction should be east or west.The car direction should be south only.The car direction should be north or south.SubmitRequest Answer |
Topic | All topics |
Subject | Physics |
Class | Class 11 |