Условие заданИя: точка, совершающая механические колебания, проходит за 2 полных колебания путь, равный 62 см. Определи амплитуду колебаний точки. (Ответ окрудлидо челых.)

If the component vector \( \vec{A} \) along the direction of vector \( \vec{B} \) is zero, what can you conclude abot the vectors? a) Is it possible to add a vector quantity to a scalar quantity? Explain b) Can the magnitude of a vector have a negative value? Explain Which of the following physical quantities are vector \& which are not: force, temperature, th volume of water in a can, the ratings of a TV show, the height of a building, the velocity of

A bullet of mass 120 grams is fired into a target of mass 10 kg with velocity \( 400 \mathrm{~m} / \mathrm{s} \). If the target is free to move, the loss of kinetic energy would be approximately \( \begin{array}{ll}\text { (1) } 9.5 \mathrm{kNm} & \text { (2) } 4.75 \mathrm{kNm} \\ \text { (3) } 19 \mathrm{kNm} & \text { (4) } 0\end{array} \)

6. A particle undergoes three consecutive displacements: \( \bar{d}_{1}=(15 i+30 j+12 k) \mathrm{cm} \). \( \vec{d}_{2}=(23 i-14 j-5 k) a n \) and \( \vec{d}_{3}=(-13 i+15 j) \) an Find the magnitude of the resultant displacement.

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?

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.