Physics & Space Science


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About the Physics & Space Science category [Physics & Space Science] (1)
If you throw a ball against the ceiling—so the ball moves upward and then rebounds to move downward—at the instant the ball hits the ceiling, the acceleration is [Introductory Physics] (2)
What is the ratio of the orbital velocities of two satellites, each in circular orbit around Earth, given that satellite A orbits 8.70 times as far from Earth’s center of gravity as satellite B? [Physics & Space Science] (1)
What ancient evidence was found for a spherical Earth? [Introductory Astronomy] (2)
In the Greek geocentric model, the retrograde motion of a planet occurs when: [Introductory Astronomy] (2)
Suppose you drop a 10 kilogram mass object and a 5 kilogram mass object on the Moon, both from the same height at the same time. What will happen? [Introductory Astronomy] (1)
Which of the following statements about Copernican model for the solar system is false? [Introductory Astronomy] (1)
Which of the following is not true about a scientific theory? [Introductory Astronomy] (1)
His model put the Sun in the center, but was not very accurate because the orbits were perfect circles [Introductory Astronomy] (1)
All the following statements are true. Which one follows directly from Kepler's third law (p 2 = a 3)? [Introductory Astronomy] (1)
The Polynesians traversed thousands of miles of open ocean to settle new islands navigating only by the stars [Introductory Astronomy] (1)
The ancient goal of astrology was to [Introductory Astronomy] (1)
The ancient goal of astrology was to [Introductory Astronomy] (1)
Estimate the average amount of time you use each of the devices listed in the previous question [Introductory Physics] (2)
A Chevrolet Bolt electric car has a battery that can store 60 kW-hrs of energy. It has an EPA mileage range of 238 miles [Introductory Physics] (1)
If the energy to run the devices in the previous question all came from a utility burning coal with a 30% efficiency, [Introductory Physics] (1)
Find and list the energy consumption rate (power) for five electrical devices you use every day in Watts [Introductory Physics] (2)
A Chevrolet Bolt electric car has a battery that can store 60 kW-hrs of energy. It has an EPA mileage range of 238 miles [Physics & Space Science] (1)
If a car has a negative displacement, what does that indicate? [Introductory Physics] (2)
If a = 3.0 mm, b = 4.0 mm, Q<sub>1</sub> = 60 nC, Q<sub>2</sub> = 80 nC, and q = 32 nC in the figure, what is the magnitude of the electric force on q? [Introductory Physics] (3)
If a = 3.0 mm, b = 4.0 mm, Q<sub>1</sub> = 60 nC, Q<sub>2</sub> = 80 nC, and q = 24 nC in the figure, what is the magnitude of the electric force on q? [Introductory Physics] (3)
If a = 3.0 mm, b = 4.0 mm, Q<sub>1</sub> = −60 nC, Q<sub>2</sub> = 80 nC, and q = 30 nC in the figure, what is the magnitude of the electric force on q? [Introductory Physics] (3)
If a = 3.0 mm, b = 4.0 mm, Q<sub>1</sub> = 60 nC, Q<sub>2</sub> = −80 nC, and q = 36 nC in the figure, what is the magnitude of the electric force on q? [Introductory Physics] (3)
In the figure, if Q = 30 μC, q = 5.0 μC, and d = 30 cm, what is the magnitude of the electrostatic force on q? [Introductory Physics] (3)
The electric flux through the two adjacent spherical surfaces shown below is known to be the same [Introductory Physics] (3)
Three originally uncharged infinite parallel planes are arranged as shown. Then the upper plate has surface charge density σ placed on it while the lower plate receives surface charge density −σ. The net charge induced on the center plate is [Introductory Physics] (3)
A positive point charge q is placed at the center of an uncharged metal sphere insulated from the ground. The outside of the sphere is then grounded as shown. Then the ground wire is removed. A is the inner surface and B is the outer surface. Which statement is correct? [Introductory Physics] (3)
Can the lines in the figure below be equipotential lines? [Introductory Physics] (3)
Which of the following represents the equipotential lines of a dipole? [Introductory Physics] (3)
If a = 30 cm, b = 20 cm, q = +2.0 nC, and Q = −3.0 nC in the figure, what is the potential difference V<sub>A</sub> − V<sub>B</sub>? [Introductory Physics] (3)