🔭 physics

1. **Problem statement:** We need to find the sound level $\beta$ in decibels for a rustle of leaves with sound intensity $I = 1 \times 10^{-11}$ W/m² using the formula: $$\beta =

1. **State the problem:** We need to find how much more the weight of the module is on Earth compared to Venus, given the weight on Venus is 1356.27 kg. 2. **Given data:**

1. **State the problem:** We need to find how much more the weight of the Huygens lander is on Earth compared to Titan, expressed in kilograms. 2. **Given data:**

1. **State the problem:** We need to find how much heavier the Tesla Roadster is on Earth compared to Mars, given its weight on Earth in pounds and its weight on Mars in kilograms.

1. **Problem:** A vacuum gauge reads 30 kPa and the barometric pressure is 755 mm Hg. Find the absolute pressure in the tank. 2. **Formula:** Absolute pressure $P_{abs} = P_{barome

1. **Problem:** A vacuum gauge reads 30 kPa and the barometric pressure is 755 mm Hg. Find the absolute pressure in the tank. 2. **Formula:** Absolute pressure $P_{abs} = P_{barome

1. **Problem 9:** Find the minimum number of non-equal coplanar forces in equilibrium. - In physics, for forces to be in equilibrium, their vector sum must be zero.

1. نبدأ ببيان المشكلة: لدينا ثلاث قوى تؤثر في نقطة واحدة، مقدارها 60، 88، و60 ليون، واتجاهاتها هي: القوة الأولى شمالاً، القوة الثانية بزاوية 20 درجة جنوب الغرب، والقوة الثالثة بزاو

1. **Problem statement:** Given a body under three parallel forces at a point with magnitudes 0, 4, and 5 Newtons, find the angle between the second and third forces. 2. **Understa

1. **State the problem:** A green marble moving at 0.7 m/s hits a stationary blue marble. After collision, the blue marble moves at 1.0 m/s. Both marbles have the same mass of 3.0

1. **Stating the problem:** A green marble moving at 0.7 m/s hits a stationary blue marble. After collision, the blue marble moves at 1.0 m/s. Both marbles weigh 3.0 g. We need to

1. **Problem statement:** A water rocket is launched from the ground with an initial velocity of 32 m/s. It reaches a height of 44 m after 2 seconds and stays in the air for 6 seco

1. **Problem Statement:** We have a fishing line with a tensile strength of 25 lbs used at point B to fasten two members together. We need to find the maximum force $F$ that can be

1. **Problem statement:** A person walks 10 minutes in a direction 53° north of east, then 10 meters north, and finally 20 minutes in a direction 37° north of west. We need to find

1. **Problem statement:** Calculate the coefficient of static friction $\mu_s$ for a system where a 25 kg block rests on a rough horizontal plane connected by a string over a smoot

1. **Problem statement:** Find the coefficient of static friction $\mu_s$ for a system with a smooth pulley, a rough horizontal plane, and masses 25 kg on the plane and 15 kg hangi

1. **Problem statement:** A body weighing 90 gm.wt is attached to a 30 cm string. It is pulled by a horizontal force and comes to equilibrium when it is 24 cm apart from the wall.

1. **Problem Statement:** Given a velocity-time graph for a bus journey lasting 45 seconds, find:

1. **Problem statement:** Calculate the total displacement traveled by the object over the entire journey given the velocity-time graph.

1. **Problem Statement:** A train travels at 40 m/s and takes 2.0 s to pass a man standing by the railway track. Find the length of the train. 2. **Formula Used:** The length of th

1. **State the problem:** Calculate the energy needed to condense 33.27 g of water vapor at 100°C into liquid water at 100°C. 2. **Formula used:** The energy required for condensat