🔭 physics

1. Calculate the resultant of the forces for each of the following. **a)** Forces: 3 N ← and 5 N →

1. Calculate the resultant of the forces for each of the following. **a)** Forces: 3 N left, 5 N right.

1. **State the problem:** We need to find the mass of gold given its density and volume. 2. **Formula:** Mass is calculated by the formula $$\text{Mass} = \text{Density} \times \te

1. **Énoncé du problème :** Nous avons un circuit RLC série avec une résistance $R=10\ \Omega$, une capacité $C=200\ \mu F$, une bobine d'inductance $L$ inconnue, et une source sin

1. **Problem Statement:** A particle moves along a straight line passing through a fixed point O. Its displacement after $t$ seconds is given by $$s = 2t^2 - t^3 + 7t.$$ We are to

1. **Stating the problem:** Seekor burung walet memanggil temannya dengan frekuensi tertentu. Cepat rambat bunyi di udara adalah 340 m/s. Jika jarak antara burung tersebut adalah 3

1. **State the problem:** We have the height of a javelin as a function of time $t$ given by $$h = -2t^2 + 9t + 11.$$ We need to find: (a) The time when the javelin hits the ground

1. The problem asks why we write $s(t) = 0$ in certain contexts. 2. Typically, $s(t)$ represents a position function depending on time $t$.

1. **State the problem:** A ball is thrown from a height of 64 feet. Its height above the ground after $t$ seconds is given by the function $$s(t) = -16t^2 + 64.$$ We need to find

1. Bola voli bermassa 240 g dilempar ke bawah dari ketinggian 10 m dengan kecepatan 2,5 m/s. Hitung energi kinetik pada ketinggian 3 m. 2. Andi menggunakan setrika dengan arus 2 A

1. **Problem:** A volleyball with mass 240 g is thrown downward from a height of 10 m with an initial velocity of 2.5 m/s. Given gravitational acceleration $g=10$ m/s², find the ki

1. **Stating the problem:** A volleyball with mass 240 g is thrown downward from a height of 10 m with an initial velocity of 2.5 m/s. Given gravitational acceleration $g = 10$ m/s

1. **State the problem:** Calculate how much charge passes through a smoke detector connected to a 9.0 V cell transferring energy at a rate of $1.0 \times 10^{-4}$ W in one day. 2.

1. **Nyatakan masalah:** Kita diminta untuk menentukan nilai $p$ dan $q$ pada graf jarak-masa perjalanan Sarah dari Melaka ke Klang. 2. **Maklumat diberikan:**

1. The problem asks to identify the stroke shown in the engine diagram with the piston moving upward, inlet valve on the left, and exhaust valve on the right. 2. The four strokes o

1. The problem asks: How long does it take to charge a battery to 15%? 2. To solve this, we need the total charging time for 100% and then calculate 15% of that time.

1. **Problem statement:** Three identical resistors $R_1$, $R_2$, and $R_3$, each with resistance $2\ \Omega$, are connected to a cell with negligible internal resistance. When swi

1. **Problem statement:** (a) Calculate the angular width of the second-order maximum for a diffraction grating with 400 lines/mm illuminated by light wavelengths from $4.00 \times

1. **Problem statement:** A small ball of mass 0.20 kg is attached to a string of length 0.80 m fixed at point S. The ball is released from rest when the string is horizontal. We a

1. **Problem statement:** A particle moves in a straight line with velocity given by $$v(t) = 1 + e^{-t} \sin t$$ for $$0 \leq t \leq 2$$. (a) Find the velocity at $$t=2$$.

1. **State the problem:** We want to find the intensity $|B|^2$ of the emerging wave from a Fabry–Pérot interferometer, where the wave amplitude is given by $$B = A(1-r) \sum_{n=0}