1Will a body moving in a circular track have zero acceleration? Vividly explain your making reference to both radial and perpendicular acceleration? In your own words describe first moment of area for any shape and its With reference to the shape below about the axis s – s, describe the position of the centroid. In quantum mechanics, the fundamental constant called Planck’s constant, h, has dimensions of ML2T -1 . Construct a quantity with the dimensions of length from h, a mass m, and c, the speed of light. 2 Explain why the vertical component of the velocity (Vy) of a projectile motion is zero at the maximum height but the Horizontal Component of the velocity (Vx) is constant thorough out the parabolic motion? Prove that, the range, R the time of flight, T and the Maximum height, H by a projectile are respectively given by; , and You are on an island and you have two coconuts. The coconuts are launched with the same initial speed. The trajectory of coconut A is such that the coconut goes very high, but falls not much farther from the spot it was launched. The trajectory of coconut B is such that coconut B goes not as high as coconut A, but falls much farther from the spot it was Explain with the idea of projectile motion which coconut hits the ground first. 3 a. Consider an object sitting on a frictionless surface and another object hangs off the edge of the table over a pulley. Make a free-body diagram and show thatand respectively. c. 4 Explain the situation in each of the segments, I, II, III and IV. b. Consider the pulley below where m2 > m1. Show that the acceleration and tension in the string are and respectively. Two strips of metal are pinned together as shown, with a rod of 10mm diameter. The Ultimate shear stress for the rod is 60MPa. Determine the maximum force required to break the pin. b) c.Explain Newtons Second Law of motion in terms of momentum.

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Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter10: Atomic Physics

Section: Chapter Questions

Problem 1MIO

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Will a body moving in a circular track have zero acceleration? Vividly explain your making reference to both radial and perpendicular acceleration?

In your own words describe first moment of area for any shape and its With reference to the shape below about the axis s – s, describe the position of the centroid.

In quantum mechanics, the fundamental constant called Planck’s

constant, h, has dimensions of

ML2T -1

. Construct a quantity with the

dimensions of length from h, a mass m, and c, the speed of light.

Explain why the vertical component of the velocity (V_y) of a projectile motion is zero at the maximum height but the Horizontal Component of the velocity (V_x) is constant thorough out the parabolic motion?

Prove that, the range, R the time of flight, T and the Maximum height, H by a projectile are respectively given by;

, and

You are on an island and you have two coconuts. The coconuts are launched with the same initial speed. The trajectory of coconut A is such that the coconut goes very high, but falls not much farther from the spot it was launched. The trajectory of coconut B is such that coconut B goes not as high as coconut A, but falls much farther from the spot it was Explain with the idea of projectile motion which coconut hits the ground first.

3 a.

Consider an object sitting on a frictionless surface and another object hangs off the edge of the table over a pulley. Make a free-body diagram and show that

and respectively.

Explain the situation in each of the segments, I, II, III and IV.

Consider the pulley below where m₂ > m₁. Show that the acceleration and tension in the string are

and respectively.

Two strips of metal are pinned together as shown, with a rod of 10mm diameter. The Ultimate shear stress for the rod is 60MPa. Determine the maximum force required to break the pin.

c.Explain Newtons Second Law of motion in terms of momentum.

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