1. Which of the following is a CORRECT statement? 2. 3. (a) 2.3056+10.138-7.4671 = 4.9765 (b)...

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1. Which of the following is a CORRECT statement? 2. 3. (a) 2.3056+10.138-7.4671 = 4.9765 (b) 2.38 x 1.0 = 2.38 8.05 (c) -=2.6 3.1 (d) (1.11 0.1) x 9.0 = 9.0 A projectile travels at 0 below horizontal 1 sec after projection as shown. What is the value of 0? 3m 4m (a) tan (2) (b) tan (c) 37 (d) 53 An electron in a research apparatus follows a circle path. On the electron's first circuit of the apparatus, its speed is vo and the radius of its circular path is R. Each time it makes on circuit, it passes a short region where it receives a "kick" and gains an additional speed of The 100 electron follows a circular path such that the magnitude of its acceleration is always the same. What is the radius of the circular path after the electron has received 10 kicks? R (a) 1.1 (b) 1.1 R (c) 1.21 R R (d) 1.21 4. A square of mass m is made of thin wire with sides of length a. Calculate the rotational inertia about the z-axis. 7ma (a) 6 X (b) 5ma 6 Z (c) 7ma 12 y 5ma (d) 12 5. If we want that a simple pendulum oscillates with same time period in summer as it did in winter, what changes to the simple pendulum should we do during summer? (a) Increase the length (c) Increase mass of bob (b) Decrease the length (d) Decrease mass of bob 1. Which of the following is a CORRECT statement? 2. 3. (a) 2.3056+10.138-7.4671 = 4.9765 (b) 2.38 x 1.0 = 2.38 8.05 (c) -=2.6 3.1 (d) (1.11 0.1) x 9.0 = 9.0 A projectile travels at 0 below horizontal 1 sec after projection as shown. What is the value of 0? 3m 4m (a) tan (2) (b) tan (c) 37 (d) 53 An electron in a research apparatus follows a circle path. On the electron's first circuit of the apparatus, its speed is vo and the radius of its circular path is R. Each time it makes on circuit, it passes a short region where it receives a "kick" and gains an additional speed of The 100 electron follows a circular path such that the magnitude of its acceleration is always the same. What is the radius of the circular path after the electron has received 10 kicks? R (a) 1.1 (b) 1.1 R (c) 1.21 R R (d) 1.21 4. A square of mass m is made of thin wire with sides of length a. Calculate the rotational inertia about the z-axis. 7ma (a) 6 X (b) 5ma 6 Z (c) 7ma 12 y 5ma (d) 12 5. If we want that a simple pendulum oscillates with same time period in summer as it did in winter, what changes to the simple pendulum should we do during summer? (a) Increase the length (c) Increase mass of bob (b) Decrease the length (d) Decrease mass of bob