The m-mass steel bullet was fired at a speed of 700 m/s towards the plate and separated from the plate at a speed of 550 m/s in line with the CD. The bullet is known to leave traces on the plate as far as e distance. Calculate the intensity and direction of the impulse force applied from the plate to the bullet, assuming that the average velocity along the contact between the bullet and the plate is 625 m/s. m=22g a=17 b=8.0 c=42mm

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The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: