🔭 physics

1. **State the problem:** We need to find the volume of 250 kg of steel given that the density of steel is 7500 kg/m^3. 2. **Formula used:** Density ($\rho$) is defined as mass ($m

1. **State the problem:** We need to find the mass of water inside a spherical balloon filled with water. 2. **Given data:**

1. **Stating the problem:** We need to find the acceleration of a rock sliding down an inclined plane and the coefficient of friction between the rock and the plane. 2. **Formulas

1. **Problem statement:** A rock of mass 3 kg slides down a rough plane inclined at 45° to the horizontal. It moves from point P to Q along the slope PQ = 37 m. The speed at P is 4

1. **State the problem:** We need to find the horsepower of an automobile engine given the bore, stroke, average pressure, and power strokes per minute. 2. **Given data:**

1. **State the problem.** We have ship $A$ moving due west at $19$ knots, and ship $B$ starting $5$ nautical miles southwest of $A$ and moving $N30^\circ E$ at $17$ knots.

1. **State the problem:** A car travels along a straight path for 10 minutes with a velocity given by a velocity-time graph. We need to find the distance from the start after 10 mi

1. **State the problem:** A car travels along a straight path for 9 minutes with a given velocity-time graph. We need to find the total distance traveled by the car in kilometers,

1. **Stating the problem:** We are given Kepler's third law formula:

1. **Problem statement:** Given the formula for the speed of sound $$s = 389\sqrt{\frac{T}{m}}$$ where $s$ is speed of sound in km/h, $T$ is temperature in Kelvin, and $m$ is molec

1. **Stating the problem:** Convert the speed of sound from metres per second (m/s) to kilometres per hour (km/h).

1. The problem asks to solve the first question from the provided document, which is about calculating the resistance in a circuit using Ohm's Law. 2. Ohm's Law formula is given by

1. **State the problem:** We are given the equation for a reference voltage $V_{ref}$ as a function of current $I$: $$V_{ref} = 8 \cdot 0.05 \cdot I$$ 2. **Formula and explanation:

1. **State the problem:** We need to find the time $t$ when the apple hits the ground. The height $y$ of the apple above the ground is given by the equation $$y = -16t^2 + 120$$ an

1. The problem asks which statement is true about the center of mass motion of two blocks during a collision. 2. The center of mass velocity of a system with no external forces rem

1. **Problem:** Find the time it will take for the cannonball to reach the ground given the height equation $$h = -16t^2 + 128t$$. 2. **Formula and rules:** The cannonball reaches

1. **Problem:** Find the maximum height of the cannonball given by the equation $$h = -16t^2 + 128t$$. 2. **Formula:** The height function is a quadratic in the form $$h = at^2 + b

1. The problem asks to identify Boyle's law in mathematical form. 2. Boyle's law states that for a given amount of gas at constant temperature, the pressure $P$ and volume $V$ of t

1. **Planteamiento del problema:** Se nos da una gráfica que muestra el movimiento vertical de un alpinista durante la ascensión al Cerro Torre.

1. **Problem Statement:** We have two blocks A and B, each weighing 10 lb, on double inclined planes with angles 60° and 30° respectively. The coefficient of kinetic friction is $\

1. **Problem statement:** Two blocks A and B with masses 10 kg and 6 kg respectively are placed on a 30° inclined plane connected by a link. The coefficients of kinetic friction ar