🔭 physics

1. **State the problem:** Find the maximum height reached by an object projected upwards with initial velocity $u=22$ m/s under acceleration $a=-10$ m/s², and then find its height

1. The problem gives a variable $Ra$ with a value of 4.5 kn. 2. Assuming $kn$ is a unit (for instance, kilonewtons in physics or kilonewtons force), the value of $Ra$ is simply $4.

1. **সমস্যাটির বিবরণ:** পৃথিবীর কেন্দ্র থেকে দুই স্থান A ও B দ্বার 2° কোণ উৎপন্ন হয়। জাওয়াদ গাড়ি A থেকে B এ t ঘণ্টায় যায়। গাড়ির চাক্কা প্রতি মিনিটে 880 বার ঘুরে, আর চাক্কার ব্যাস

1. The problem is to understand the concept of \textbf{work} in physics and calculate it. 2. \textbf{Work} is defined as the dot product of force and displacement vectors: $$ W = \

1. **Problem statement:** لدينا الدالة التي تمثل التردد $f$ بدلالة الطول الموجي $\lambda$ وهي \(f(\lambda) = \frac{c}{\lambda}\) حيث $c = 2.99 \times 10^8$ m/s تمثل سرعة الموجة أو

1. Let's start by understanding what an optical instrument is. 2. Optical instruments are devices that use lenses, mirrors, or a combination of both to form images of objects.

1. Let's start with a question on Unit 1: What is the formula for acceleration? A) $a = \frac{v}{t}$

1. Problem 1: Calculate the acceleration and distance of a car accelerating uniformly from rest to 20 m/s in 5 seconds. Step 1: Given initial velocity $u = 0$ m/s, final velocity $

1. A car accelerates uniformly from rest to a speed of 20 m/s in 5 seconds. Calculate the car's acceleration and the distance it travels during this time.\n 2. Calculate the gravit

1. **Problem Statement:** Explain key physics terms and solve related calculations including work, kinetic energy, power, stopping time, distance under acceleration, work done lift

1. Describe the motion of the race car. The race car has forces acting: Up 2000 N, Down 2000 N, Left 6000 N, Right 8000 N.

1. **Describe the car's motion.** The car experiences forces: Left is 6000 N, Right is 8000 N, Up is 2000 N, Down is 2000 N.

1. **State the problem**: We have two containers A and B connected, each containing an ideal gas at the same pressure but at different volumes and temperatures. 2. **Convert volume

1. The problem is to calculate the voltage $V$ given the expression: $$50 \times 4 \times 10^{-3} \times 0.8 \times 15\pi$$ 2. Calculate the product of the constants first: $$50 \t

1. Find the velocity at $t=2$ seconds for $s(t) = 2t^2 - 5t + 3$. Velocity is the derivative of displacement:

1. Problem: Find velocity at $t=2$ given displacement $s(t)=2t^2 - 5t + 3$ Step 1: Recognize that velocity $v(t)$ is the first derivative of displacement $s(t)$ with respect to tim

1. **Problem statement:** (a) Define specific heat capacity, specific latent heat, and thermal equilibrium.

1. **Exercice 01 : Calcul de la puissance, énergie et prix journalier** Le problème donne 20 lampes de 150 W chacune, allumées 8 heures par jour. Le coût de 1 kW est 0,75 DH.

1. **Problem statement:** Calculate the curvature radius $\rho$ at time $t=2$ seconds given velocity $\mathbf{v}$ and acceleration $\mathbf{a}$. 2. The formula for curvature radius

1. **State the Problem:** We have a 7.5-kg block resting against a vertical wall with friction coefficients\n static friction $\mu_s = 0.45$, kinetic friction $\mu_k=0.35$, and an

1. **State the problem:** A soccer ball is kicked with initial velocity $v_0=25$ m/s at an angle $\theta=40^\circ$ above the horizontal. We need to find a. Time of flight