🔭 physics

1. **Problem statement:** A uniform rod AB of length 10 m and weight 45 kg-wt has two vertical forces $F_1$ (upward) and $F_2$ (downward) acting on it, along with its weight acting

1. **State the problem:** We have two forces acting at right angles (90°) with a resultant of 10 kN, and the same two forces acting at an angle of 60° with a resultant of 12 kN. We

1. **State the problem:** A rotating portal has an initial moment of inertia $I_1 = 6.0$ kgm$^2$ and initial angular velocity $\omega_1 = 1.5$ rad/s. It shrinks so that its moment

1. **Problem statement:** A rotating ring (portal) has an initial moment of inertia $I_1=6.0$ kgm$^2$ and initial angular velocity $\omega_1=1.5$ rad/s. It shrinks, reducing its mo

1. **Problem statement:** A load weighing 120 N is raised a distance of 4 cm by a machine. The worker exerts a force of 50 N through a distance of 12 cm.

1. **State the problem:** Calculate the value of $\frac{100\text{ m}}{26\text{ s}}$ and include units in the answer. 2. **Formula used:** This is a division of distance by time, wh

1. **State the problem:** We want to find the number of seconds in which the number of clicks heard equals the speed of the train in miles per hour.

1. **Problem Statement:** We have two parallel, infinite conducting sheets with equal and opposite charge densities. We need to determine the correct set of equipotential surfaces

1. **Problem statement:** Three charges lie along the x-axis: $q_2=6.0$ nC at $x=0$, $q_1=15.0$ nC at $x=2.00$ m, and $q_3$ at an unknown position $x$ between them. The net force o

1. **State the problem:** We have two spheres with charges $q$ and $2q$ separated by a distance of 6 m. They exert a force of 20 N on each other. We need to find the values of $q$

1. **State the problem:** We need to find the smallest radius $R$ of a horizontal circular track on which a car can travel at velocity $v=15$ m/s without skidding, given the coeffi

1. **State the problem:** We need to find the distance between two point charges with magnitudes $+150$ nC and $+250$ nC given that the electric force between them is $20$ N. 2. **

1. **State the problem:** We want to derive the velocity $v$ from the time dilation formula in special relativity. 2. **Recall the time dilation formula:** The time dilation formul

1. **State the problem:** We need to find the missing coordinate $x$ of point $A(x, 2)$ such that the moment $M_0$ created by the force $\mathbf{F} = 3\mathbf{i} - 4\mathbf{j}$ abo

1. The problem is to express the velocity $v$ in terms of initial velocity $v_i$, acceleration $a$, and time $t$ in standard kinematics. 2. The standard formula for velocity under

1. مسئله: توضیح تابش رسانش بر اساس منبع زیمنسکی، معادله پخش مولکولی در یک بعد، و اثبات اینکه انرژی داخلی گاز ایده‌آل تنها تابعی از دماست. 2. تابش رسانش (Radiative Transfer) بر اساس

1. The problem is to calculate the product of the acceleration due to gravity and the square of a given length. 2. The formula used is multiplication of a constant and the square o

1. সমস্যাটি হলো: একটি ২০ কেজি ওজনের বস্তু একটি সমতল যা ভূমির সাথে $\alpha$ কোণে হেলানো। বস্তুটির উপর ২০ কেজি ওজনের বল এবং দুটি ১০ কেজি ওজনের সামান্য বল প্রয়োগ করা হয়েছে, একটি তলের

1. **State the problem:** A particle with charge $1.8$ microcoulombs is placed at the center of a Gaussian cube with edge length $55$ cm. We need to find the net electric flux thro

1. **State the problem:** A particle with charge $q = 1.8$ microcoulombs ($1.8 \times 10^{-6}$ C) is placed at the center of a Gaussian cube with edge length $L = 55$ cm ($0.55$ m)

1. **Problem Statement:** Find the currents through the 30.0-Ω resistor, 20.0-Ω resistor, and the 10.0-V battery in the circuit with two batteries (10.0 V and 5.00 V) and resistors