Questions in physics

Questions in physics

📝 Answered - How would your weight change on the surface of an Earth-sized planet whose mass was greater than Earth's? Why?

📝 Answered - A golf ball is dropped from rest from a height of 9.5 m. It hits the pavement, then bounces back up, rising just 5.7 m before falling back down again. A boy catches the ball on the way down when it is 1.20 m above the pavement. Ignoring air resistance, calculate the total amount of time the ball is in the air, from drop to catch.

📝 Answered - How is the horizontal component of velocity for a projectile affected by the vertical component?

📝 Answered - What is \( E = mc^2 \), the famous theory of Albert Einstein?

📝 Answered - Where are most faults located? What is a fault in scientific terms?

📝 Answered - List four methods that can be used to separate mixtures and give an example of each method. 1. Filtration - Example: Separating sand from water. 2. Distillation - Example: Purifying alcohol. 3. Chromatography - Example: Separating pigments in ink. 4. Centrifugation - Example: Separating blood components.

📝 Answered - What is the minimum value an eccentricity can be?

📝 Answered - A metal box, attached to a small parachute, is dropped from a helicopter. Explain, in terms of the forces acting, why: (i) Its velocity increased immediately after being dropped. (ii) It reached a uniform velocity after a short time.

📝 Answered - What type of rock is the Haystack Rock? A. Igneous B. Metamorphic C. Sedimentary

📝 Answered - A snowball is launched horizontally from the top of a building at [tex]v = 16.9 \, \text{m/s}[/tex]. If it lands [tex]d = 44 \, \text{meters}[/tex] from the bottom, how high (in meters) was the building?