🔭 physics

1. **Problem statement:** We want to find how many revolutions the smaller gear completes during one full revolution of the larger gear. 2. **Formula and concept:** The number of r

1. **Problem statement:** Calculate the number of horizontal divisions occupied by one complete cycle of the waveform displayed on the CRO.

1. The problem asks to express the velocity vectors \(v\) (plane in still air) and \(w\) (wind) in terms of their magnitudes and direction angles. 2. The plane flies at 179 mph on

1. **Problem Statement:** We have a system where the $m^{th}$ mode of vibration is on a string with length $2m$, and the $2m^{th}$ mode is related to a point $P$ on the $P$-axis. T

1. **பிரச்சினையை விளக்குதல்:** Δக மீது m மற்றும் 2m என்ற இரண்டு தளங்கள் உள்ளன. P என்ற புள்ளி A-இன் அருகில் உள்ளது. P மற்றும் A இடையேயான தொடர்பு $$\omega = \sqrt{\frac{g}{a}}$$ என்ற

1. **பிரச்சினையை விளக்குதல்:** புவியில் ஒரு நிலை மையம் O கொண்ட புள்ளி உள்ளது, அதில் புவி ஆழம் 2m மற்றும் அகலம் a உள்ளது.

1. **State the problem:** We have three point charges in the x-y plane:

1. Problem 2: Calculate acceleration, deceleration, and total distance for a train with speed-time graph vertices at (0,0), (20,20), (30,10), (60,0). 2. Formula for acceleration: $

1. **State the problem:** We have a speed-time graph of a train journey with the following key points:

1. **Purpose:** Calculate the speed of sound in air using the Doppler effect. 2. **Materials:** Electric skateboard, tone generator, GPS device, electric tuner.

1. **Problem Statement:** A ball rolls across a smooth surface at a steady speed of 0.5 m/s. We need to find its acceleration. 2. **Understanding the problem:** Acceleration is the

1. **State the problem:** We have 80 cm³ of liquid A with density 1.8 g/cm³ and 40 cm³ of liquid B with density 1.2 g/cm³ mixed to form 120 cm³ of liquid C. We need to find the den

1. **State the problem:** Calculate the voltage drop across resistor $R_1$ in the given circuit where $V_1 = 30V$ is measured across $R_1$ and the voltage source is $17V$. 2. **Ana

1. **Stating the problem:** We have a rectangular circuit with three ammeters measuring currents $i_1$, $i_2$, and $i_3$. The total current entering the circuit is 250 mA. We need

1. **Problem Statement:** Calculate the applied voltage $V_T$ in the circuit of Fig. 2, which has two resistors $R_1$ and $R_2$ and two voltage sources of 25V and 15V arranged as d

1. **State the problem:** We have two boxes on an inclined ramp. The lower box has a mass of 48.0 kg, and the upper box has a mass $m = 32$ kg. The ramp has a vertical height of 2.

1. **State the problem:** Given an object with initial velocity $o=50$ and angle $28^\circ$, find the components of the velocity. 2. **Formula used:** To find the horizontal and ve

1. **Problem statement:** (c) Given the pressure drop formula in a water pipeline system:

1. **State the problem:** Abelie flew from Dubai to Rome in 6 hours 42 minutes at an average speed of 650 kilometres per hour. We need to find the distance flown. 2. **Formula used

1. **State the problem:** We are given an object at point A with potential energy (PE) of 360 J and kinetic energy (KE) of 0 J. We need to find the total mechanical energy (TE) at

1. The problem asks us to determine which energy chart corresponds to point A on a height vs. time graph. 2. At point A, the height is 4 meters, so the potential energy $E_p$ is pr