🔭 physics

1. **Problem Statement:** Calculate the velocity at $t=5.4$ s, friction at $t=5.4$ s, time to start motion, and acceleration at $t=1.8$ s given a force $P=49t$ N applied at an angl

1. **Stating the problem:** We have five forces acting at different angles from a single point with magnitudes and directions: - $4$ N at $120^\circ$

1. **Problem Statement:** Solve the system of equations for the unknown currents $I_1$, $I_2$, and $I_3$ in the circuit from Exercise 5 using matrix methods. 2. **Set up the equati

1. **Problem statement:** A 9 kg particle is on a smooth table connected by a light string over a smooth pulley to a 1 kg particle hanging vertically. The system is released from r

1. مسئله: محاسبه پتانسیل داخل کره با شعاع $R=1$ که هیچ باری در داخل کره وجود ندارد و پتانسیل روی سطح کره به صورت $f(\phi) = \cos 2\phi$ داده شده است. 2. فرمول پایه: پتانسیل داخل کر

1. مسئله: محاسبه پتانسیل داخل کره‌ای به شعاع $R=1$ است که هیچ بار الکتریکی در داخل آن وجود ندارد و پتانسیل روی سطح کره به صورت تابعی از زاویه $C6$ داده شده است. 2. فرمول کلی: برای

1. **Nyatakan masalah:** Kita diberi gelombang harmonik mudah yang merambat ke arah negatif paksi $x$ dengan frekuensi sudut $\omega$ dan halaju gelombang $u$. Pada masa $t=\frac{T

1. **Problem statement:** A plane harmonic wave propagates along the negative x-axis with angular frequency $\omega$ and wave speed $u$. At time $t=\frac{T}{4}$, the wave shape is

1. **Problem statement:** A ball is thrown upward from a 60 m tall building. It reaches 80 m after 2 seconds and hits the ground after 6 seconds. We need to find the height as a fu

1. **Problem statement:** We have a ladder \(\overline{AB}\) leaning against a vertical wall and resting on a horizontal floor. The ladder is about to slide, and the condition give

1. **Énoncé du problème :** On considère un circuit RLC série alimenté par une source de courant sinusoïdal d’intensité $i(t) = I_0 \cos(\omega t)$.

1. Problem: Two forces of magnitudes 8N and 6N act at an angle of 120° to each other. Find the magnitude of their resultant force. 2. Formula: The magnitude of the resultant $R$ of

1. The problem involves calculating the temperature difference $\Delta T$ between two points A and B. 2. The formula used is $\Delta T = \Delta T_{b,B} - \Delta T_{b,A}$, where $\D

1. **Problem Statement:** Given two sine waves from an AC generator:

1. **Problem Statement:** Given two sine waves from an AC generator:

1. The problem is to calculate the force and verify if the answer is 60 N. 2. The formula for force is given by Newton's second law: $$F = ma$$ where $F$ is force, $m$ is mass, and

1. **Problem statement:** A body with mass $m=1$ kg is thrown horizontally from a height $h=6$ m. We need to find the impact force $N(t)$ at time $t=1$ s. Gravity acceleration is $

1. Statement of the problem. We derive Eq. (13.42), namely

1. **Stating the problem:** We have a uniform rod of length $2m$ pivoted at point $O$. The rod is released from rest and swings down under gravity. We want to find the angle $\thet

1. **Problem Statement:** We need to create a logical scenario where a player receives a ball following a projectile motion path, specifically using case 2 of trajectory motion.

1. **Stating the problem:** Calculate the net torque (moment) about each point A, B, C, D, and E for the given force system on the beam.