🔭 physics

1. **State the problem:** A farmer pulls a sled loaded with firewood a distance of 20 m along level ground. The sled and load weigh 14,700 N. The tractor pulls with a 5000-N force

1. **Problem statement:** We have three cables with forces \(\vec{F}, \vec{Q}, \vec{P}\) acting on a vertical post. The resultant force is along the z-axis with magnitude 120 N. Gi

1. 题目陈述：在物理中，数学有许多独特的应用，尤其是在描述自然现象和建立物理模型方面。 2. 公式与规则：物理中常用的数学工具包括微积分、线性代数、微分方程等。例如，牛顿第二定律用公式$$F=ma$$描述力与加速度的关系。

1. The problem is to find the correct formula for angular velocity given some parameters. 2. Angular velocity $\omega$ is generally defined as the rate of change of angular displac

1. **Problem Statement:** A square block of mass $m$ and side length $d$ slides on a frictionless table at speed $v$. It hits a ledge and begins to tip over, rotating about the led

1. **Problem statement:** A square block of mass $m$ and side length $d$ slides on a frictionless table at speed $v$. It hits a ledge and begins to tip over, rotating about the led

1. **Problem statement:** Three identical stars, each of mass $M$, orbit in a circle of radius $R$ around their center of mass (CM), positioned at the vertices of an equilateral tr

1. مسئله: هر یک از عبارات زیر بیانگر کدام قانون نیوتن است؟ فقط شماره قانون را بنویسید. - الف) وقتی ترمز ناگهانی می کنیم، به جلو پرت می شویم. (قانون اول نیوتن)

1. Задача I.004: Дана зависимость пути $S$ от времени $t$ по формуле $$S = A + Bt + Ct^2 + Dt^3,$$ где $C = 0{,}14$ м/с$^2$, $D = 0{,}01$ м/с$^3$. Найти время $t$, когда ускорение

1. Задача I.004: Дана зависимость пути тела от времени $$S = A + Bt + Ct^2 + Dt^3$$, где $$C = 0{,}14$$ м/с², $$D = 0{,}01$$ м/с³. Найти время, когда ускорение тела $$a = 1$$ м/с².

1. **Problem Statement:** Find the moment about point M for the rectangle ABCD inscribed in a circle of diameter 10 cm.

1. **பிரச்சினையை விளக்குதல்:** ஒருவர் தனது வீட்டிலிருந்து சேவை நிலையத்திற்குச் செல்லும் போது, தூரம் மற்றும் நேரம் கொடுக்கப்பட்டுள்ளன. இதன் அடிப்படையில் சராசரி வேகத்தை $\text{kmh}^{

1. **Problem Statement:** We are given a radioactive substance with a half-life of 1 week. Starting with 70 grams, we want to find how much remains after 3 weeks. 2. **Formula:** T

1. **Problem Statement:** We are given a radioactive substance with a half-life of 3 months. Starting with 50 grams, we want to find how much remains after 12 months. 2. **Formula:

1. **State the problem:** A train passes a station 120 m long at a speed of 180 km/h and takes 7 seconds to pass completely. We need to find the length of the train. 2. **Formula a

1. The problem is to define the term "physics."\n\n2. Physics is the branch of science concerned with the nature and properties of matter and energy.\n\n3. It studies phenomena suc

1. **Problem statement:** We analyze a bullet of mass $m=20\,g=0.02\,kg$ fired with velocity $V_0$ embedding into a wooden block of mass $M=1\,kg$ suspended by a string of length $

1. **Problem statement:** A tennis ball is dropped from a ceiling height $h_0=10$ m. Each bounce reaches 80% of the previous height. The time for a full bounce (up and down) from h

1. **Problem statement:** A tennis ball is dropped from a height $h_0=10$ m. Each bounce reaches 80% of the previous height. The time for a full bounce (up and down) from height $h

1. **Problem Statement:** Determine how many full bounces a ball makes within 20 seconds, given it bounces to 80% of its previous height each time and the initial drop height is 10

1. **Problem:** An airplane travels 2.5 hours at 300 mph, then turns 20° left and flies 1 hour at the same speed. Find the distance from the departure point. 2. **Formula:** Use ve