🔭 physics

1. **State the problem:** A force of 100 N is acting north on a point charge of -20 microcoulombs. We need to find the magnitude and direction of the electric field at this point.

1. **State the problem:** A body of mass 0.6 kg is thrown vertically upwards with a speed of 20 m/s. We need to calculate its kinetic energy. 2. **Formula used:** The kinetic energ

1. The problem is to understand the basics of physics and how to approach physics problems. 2. Physics involves studying the natural world through concepts like motion, forces, ene

1. **Problem statement:** A particle travels on the x-axis with velocity given by $v(t) = 6 \sin\left(\frac{t}{2}\right)$. The particle is at position $x=1$ when $t=0$. Find the po

1. The problem states that the electrostatic force $F$ between two charges varies inversely with the square of the distance $r$ between them. This is expressed as: $$F = k \frac{q_

1. **State the problem:** We have two point charges $q_1 = 3.0$ C at $x=+2.0$ m and $q_2 = -5.0$ C at $x=+4.0$ m. We want to find the total electric force on a charge $q_3 = 5.0$ C

1. **State the problem:** We have two spheres with charges $q_1$ and $q_2$, where one charge is twice the other, so $q_2 = 2q_1$. They are separated by a distance $r = 6$ m and exe

1. **State the problem:** Two spheres exert a force of 20 N on each other when separated by 6 m. One sphere has twice the charge of the other. We need to find the charge on each sp

1. **State the problem:** We have two charged spheres with charges $q_1 = 6$ C and $q_2 = -12$ C separated by a distance $r = 50000$ m. We need to find the electrostatic force betw

1. **State the problem:** A motorcycle moves on a circular track of radius 500 m. It covers an arc length of 1.2 km in 3 minutes. We need to find: (a) The central angle in degrees.

1. **Problem statement:** Consider a grating with 5 narrow slits separated by distance $d$, illuminated by monochromatic light of vacuum wavelength $\lambda$ inside glass of refrac

1. The problem asks to relate Ohm's Law to electric power consumption. Ohm's Law states that $V = IR$, where $V$ is voltage, $I$ is current, and $R$ is resistance.

1. Problem 1: A 3V battery with internal resistance $r=0.5\ \Omega$ is connected to a load resistance $R=4\ \Omega$. Find: a) Current delivered $I$

1. Problem 1: A small flashlight bulb draws 300mA from its 1.5V battery. (a) What is the resistance of the bulb?

1. **Problem Statement:** Calculate the electric potential $V$ due to a point charge $q_1 = 25.0 \times 10^{-9}$ C at distances (a) 1.00 m, (b) 2.00 m, and (c) infinitely far away.

1. **Problem Statement:** Find the total electric potential energy of a system composed of three charges: $q_1 = 10q$, $q_2 = -5q$, and $q_3 = 8q$, located at the vertices of a tri

1. **State the problem:** We are given velocity values $V$ of a body at different times $t$ and need to find the acceleration at $t=1.0$ seconds. 2. **Recall the formula:** Acceler

1. **Problem statement:** Calculate the force experienced by the +5 nC charge due to the other two charges (-9 nC and +4 nC) placed at the vertices of an equilateral triangle with

1. **Stating the problem:** A driver travels from Bolga to Walawale, a distance of 40 miles. The driver stops at Kalminga, 10 miles from Bolga, after 60 minutes. After a 30-minute

1. **Stating the problem:** A driver travels from Bolga to Walawale, a distance of 40 miles. After 60 minutes, the driver stops at Kalminga, which is 10 miles from Bolga. Then, 30

1. **State the problem:** Find the currents $I_1$, $I_2$, and $I_3$ in the given circuit using Kirchhoff's laws. 2. **Identify the circuit elements and nodes:**