This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
You're on a roll — Here are the solutions to your questions: 7. Calculate the common velocity after the impact. Step 1: Identify the given values and convert units. Mass of arrow, m_1 = 100 g = 0.1 kg Mass of block of wood, m_2 = 400 g = 0.4 kg Initial velocity of arrow, u_1 = 15 m/s Initial velocity of block of wood, u_2 = 0 m/s (since it is at rest) Common final velocity, V = ? Step 2: Apply the principle of conservation of momentum. The total momentum before impact equals the total momentum after impact. m_1 u_1 + m_2 u_2 = (m_1 + m_2) V Step 3: Substitute the values into the equation and solve for V. (0.1 kg)(15 m/s) + (0.4 kg)(0 m/s) = (0.1 kg + 0.4 kg) V 1.5 kg · m/s + 0 = (0.5 kg) V 1.5 kg · m/s = (0.5 kg) V V = 1.5 kg · m/s0.5 kg V = 3.0 m/s The common velocity after impact is 3.0 m/s. 8. State two evidences that matter is made up of small particles Two evidences that matter is made up of small particles are: Diffusion*: The spreading out of particles from a region of higher concentration to a region of lower concentration, such as the smell of perfume spreading in a room. Brownian motion*: The random movement of microscopic particles suspended in a fluid (liquid or gas) due to their collision with the fast-moving atoms or molecules in the fluid. 9. Distinguish between conduction and convection Conduction* is the transfer of heat through direct contact between particles, without the bulk movement of the material itself. Convection* is the transfer of heat through the movement of fluids (liquids or gases) from hotter regions to colder regions. Send me the next one 📸