🔭 physics

1. **Problem Statement:** We have a force $F$ of magnitude 300 N acting on a plane at point $B$ directed diagonally downwards towards point $A$. Points are located as follows: $O$

1. **State the problem:** A bus travels at a speed of 60 kilometers per hour. We want to find out how far it will travel in 8 hours. 2. **Formula used:** Distance traveled is calcu

1. **Problem Statement:** We need to find the final speed of a sprinter at the end of the acceleration phase, given the acceleration and time or distance (not explicitly stated her

1. The problem asks to identify which set of quantities are considered basic quantities in physics. 2. Basic quantities, also known as fundamental quantities, are those that cannot

1. **Stating the problem:** We have two vectors, one given as $\mathbf{a} = (3,2)$ and another vector (not explicitly given, but implied by the problem context). We need to find th

1. **Problem Statement:** Given two forces $p$ and $q$, their resultant is $\sqrt{3}q$ and makes an angle of $30^\circ$ with the direction of $p$. We need to show that $p$ is eithe

1. **Problem statement:** A body of mass 2 kg floats on water. Given the density of water is 1000 kg/m^3, calculate the volume of the body immersed in water. 2. **Formula used:** W

1. **Stating the problem:** We are given that the force of attraction $F$ between two bodies varies directly as the product of their masses $m_1$ and $m_2$, and inversely as the sq

1. **Stating the problem:** We want to prove the equation of the resultant force when two forces act at a point using the parallelogram of forces method. 2. **Concept:** When two f

1. **Problem Statement:** Find the resultant of two forces: 3N acting at 10 degrees and 5N acting at 120 degrees. 2. **Formula Used:** The resultant $R$ of two forces $F_1$ and $F_

1. **State the problem:** We have two forces, 6N and 4N, acting at an angle of 60 degrees to each other. We need to find the resultant force and the angle $\alpha$ it makes with th

1. **State the problem:** We need to find the resultant force of two forces acting at an angle. The first force is 6N, the second force is 4N, and the angle between them is 60 degr

1. **State the problem:** (a)(i) Explain the meaning of the angular resolution (විකාලය) $m$ of a telescope.

1. **State the problem:** We are given the half-life of a substance as 10.7 days and need to find the decay rate constant $k$. 2. **Formula used:** The decay rate constant $k$ is r

1. The problem asks to find the decay rate constant $k$ for a substance with a half-life of 12.9 days. 2. The formula relating half-life $t_{1/2}$ and decay rate $k$ is:

1. **Problem Statement:** A person walks from point P along a circular path, passing through points Q, R, S, and returns to P. We need to determine which statements about distance

1. **State the problem:** An object starts at position 0 on the number line, moves 2 units to the right, then 4 units to the left. We need to find the total distance traveled and t

1. **State the problem:** An object starts at position 0 on the number line, moves 2 units to the right, then 4 units to the left. We need to find the total distance traveled and t

1. **Problem Statement:** Given vectors $\vec{A}$ and $\vec{B}$ with magnitudes and directions:

1. The problem asks: "How much time will it take?" but does not provide any context or details such as distance, speed, or any other variables. 2. To find time, the general formula

1. **Problem statement:** A vacuum gauge reads 5.4 psi and the barometric pressure is 28.5 in Hg. We need to find the absolute pressure in the tank. 2. **Formula:** Absolute pressu