🔭 physics

1. **State the problem:** We start with 350 grams of Turenchalkygen-62, which has a half-life of 170 days. We want to find how long it takes for the amount to decay to 90 grams. 2.

1. **State the problem:** We need to find the decay rate of Turenchalkygen-62, an isotope with a half-life of 170 days, using the equation $y = ae^{kt}$ where $k$ is the decay cons

1. The problem is to understand which rays to draw when an object is placed exactly at the center of curvature (point C) of a convex mirror. 2. Important to know: For a convex mirr

1. **State the problem:** A racing car decelerates uniformly from an initial velocity $u = 75$ m/s to a final velocity $v = 15$ m/s over a distance $s = 270$ m. We need to find the

1. **Problem statement:** A bullet is fired upward at an angle of 60° with an initial velocity of 100 m/s from a tower 100 m high. We need to find: - Maximum height above the groun

1. **State the problem:** We need to perform two calculations and express the answers in meters.

1. **Problem:** Calculate the change in electric potential energy when a proton moves 0.50 m east in a uniform electric field of magnitude 2,000 N/C directed east. 2. **Formula:**

1. **Problem:** Calculate the change in electric potential energy of a proton moving 0.50 m east in a uniform electric field of magnitude 2,000 N/C directed east. 2. **Formula:** T

1. **Problem statement:** A 5.0 kg block moves up a 30° inclined plane with initial speed 8.0 m/s and stops after 3.0 m. Calculate: a) Change in kinetic energy

1. **Problem statement:** A pump fills a tank of capacity 300 m^3 in 5 hours. The tank is 20 m above the water level. The pump efficiency is 65%. We need to find the power of the e

1. **State the problem:** A pump fills a tank of capacity 300 m³ in 5 hours. The tank is 20 m above the water level. The pump's efficiency is 65%. We need to find the power of the

1. **Stating the problem:** We are given points A, B, C, D with coordinates and tensions in cables. We want to find the tension vector $\mathbf{T}$ in cable AB and the tension $\ma

1. **State the problem:** A box of mass 4.9 kg is pulled up an inclined plane at constant velocity by a force of 64 N parallel to the slope. The slope is inclined at 20° and the ve

1. **State the problem:** A car weighing 15000 N is moving on a horizontal road with a velocity of 24 m/s. The engine produces a thrust force of 12000 N, and there is a resistive f

1. **State the problem:** Calculate the work done by the force \( \vec{F} = 3\hat{i} + 3\hat{j} \) when the displacement is \( \vec{x} = 4\hat{i} - \hat{j} \). 2. **Formula used:**

1. **Problem Statement:** Given a force vector $F = 20$ kN with components $F_x$ and $F_y$ such that $\frac{F_x}{4} = \frac{F_y}{3} = \frac{F}{5}$, find the components $F_x$, $F_y$

1. Problem: Calculate the potential energy of a 5.00 kg shot-put at 3.00 m above the ground. 2. Formula: Potential energy (PE) is given by $$PE = mgh$$ where $m$ is mass, $g$ is ac

1. **Problem statement:** We are asked to find an expression for the magnification $M$ of a lens and then determine if the image is upright or inverted when the object distance $x=

1. Masalah yang diminta adalah prediksi soal UAS mekanika dan kalor semester 2 UT dalam bentuk pilihan ganda beserta jawaban benar. 2. Namun, permintaan ini bukan soal matematika a

1. **State the problem:** A ball is dropped from rest and falls downward under gravity. The final velocity of the ball is 25 m/s. We need to determine the time it takes to reach th

1. **State the problem:** Given the formula $$f_n = \frac{1}{2 \pi} \sqrt{\frac{g_n}{\delta_{st}}}$$, calculate $f_n$ for specific values of $g_n$ and $\delta_{st}$. 2. **Formula e