ORA PROVA TU Un vettore di modulo pari a \( 4,0 \mathrm{~m} \mathrm{for} \). ma un angolo di \( 30^{\circ} \) con una retta orizzontale. Calcola le componenti orizzontale e verticale del vet. tore dato. Quale angolo forma con la retta verticale?

9.4. (a) Suppose that the unknown resistance \( R_{u} \) in Figure 9.2 is a resistance thermometer whose resistance at \( 100^{\circ} \mathrm{C} \) is \( 500 \Omega \) and whose resistance varies with temperature Chapter 9 at the rate of \( 0.5 \Omega /{ }^{\circ} \mathrm{C} \) for small temperature changes around \( 100^{\circ} \mathrm{C} \). Calculate the sensitivity of the total measurement system for small changes in temperature around \( 100^{\circ} \mathrm{C} \), given the following resistance and voltage values measured at \( 15^{\circ} \mathrm{C} \) by instruments calibrated at \( 15^{\circ} \mathrm{C}: R_{1}=500 \Omega ; R_{2}=R_{3}=5000 \Omega \); \( V_{i}=10 \mathrm{~V} \)

3. Solve the problem analytically, deriving any necessary formulas not provided in the textbook. Ensure all steps and reasoning are clearly shown. 4. \( \mathrm{g}=9.8 \mathrm{~m} / \mathrm{s} 2 \) A 0.0450 kg golf ball initially at rest is given a speed of \( 24.9 \mathrm{~m} / \mathrm{s} \) when a club strikes it. If the club and ball are in contact for 2.40 ms , what average force acts on the ball? Is the effect of the ball's weight during the time of contact significant? Why or why not?

1. Draw the relevant diagrams clearly, ensuring all key elements are labeled. 2. Define and label the coordinate axes, and establish the position of the origin. 3. Solve the problem analytically, deriving any necessary formulas not provided in the textbook. Ensure all steps and reasoning are clearly shown. 4. \( \mathrm{g}=9.8 \mathrm{~m} / \mathrm{s}^{2} \) Exercise \( 1: \) Momentum and Impulse ( 20 points) A. A 0.0450 kg golf ball initially at rest is given a speed of \( 24.9 \mathrm{~m} / \mathrm{s} \) when a club strikes it. If the club and ball are in contact for 2.40 ms , what average force acts on the ball? Is the effect of the ball's weight during the time of contact significant? Why or why not?

The velocity of a canoe in a river without the current would be \( \langle 8,6) \). However, the current is flowing north to south at a speed of 2 miles per hour. What is the actual velocity vector of the canoe? \[ (10,6) \] \( (8,4) \) \( (6,8) \)

a) Use the kinetic theory of gases to explain the pressure in the gas b) Hence discuss the effect on the pressure of the gas when the gas is heated at constant volume c) On the same axes of a p-V graph, show the change in the pressure of the gas when the gas is heated at constant volume and when the volume of the gas is reducod at constant temperature.