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Questions in physics

📝 Answered - A marble rolling at a speed of 2 meters per second falls off the end of a 1-meter high table. How long will the marble be in the air? a. What do you know? b. What do you need to solve for? c. What equation(s) will you use? d. What is the solution to this problem?

📝 Answered - A lever used to lift a heavy box has an input arm of 4 meters and an output arm of 0.8 meters. What is the mechanical advantage of the lever?

📝 Answered - How can two substances be made up of the same two elements but have very different properties?

📝 Answered - What is your rate in miles per hour if you run at a speed of 2.2 miles in 20 minutes?

📝 Answered - Yellow light has a longer wavelength than green light. Which color of light has the higher frequency?

📝 Answered - While traveling along a highway, a driver slows from 24 m/sec to 15 m/sec in 12 seconds. What is the automobile’s acceleration?

📝 Answered - A coin rolls across the floor at an angular speed of 4 rotations per second. What is its speed in degrees per second? Hint: One full rotation equals 360 degrees.

📝 Answered - A cat is being chased by a dog. Both are running in a straight line at constant speeds. The cat has a head start of 3.8 meters. The dog is running with a speed of 8.9 m/s and catches the cat after 6.0 seconds. How fast did the cat run?

📝 Answered - Volume, mass, and weight can be measured with balances, scales, and _______?

📝 Answered - Saturn has a radius of 60,330,000 meters and a mass of \(5.7 \times 10^{26}\) kilograms. Calculate the strength of its gravitational field.