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Questions in physics

[Jawaban] Which explains the information needed to calculate speed and velocity? A. Both require the total distance, but velocity also requires time and displacement. B. Both require time, but velocity requires displacement and speed requires distance. C. Speed requires displacement, while velocity requires distance. D. Speed does not require time, while velocity does require time.

[Jawaban] If a cyclist finished a 100 km leg of the Tour de France in 3 hours, what was the cyclist's average velocity? A. 33 m/s B. 3.3 km/h C. 33 km/h D. 100 km/h

[Jawaban] Which force keeps the planets from floating off into space? A. Earth's gravity B. the Sun's gravity C. the moon's gravity D. Milky Way's gravity

[Jawaban] The equation [tex]T^2=A^3[/tex] shows the relationship between a planet's orbital period, [tex]T[/tex], and the planet's mean distance the sun, [tex]A[/tex], in astronomical units, [tex]AU[/tex]. If factor is A. [tex]2^{\frac{1}{3}}[/tex] B. [tex]2^{\frac{1}{2}}[/tex] C. [tex]2^{\frac{2}{3}}[/tex] D. [tex]2^{\frac{3}{2}}[/tex]

[Jawaban] If a car starts from rest and its velocity becomes 30 m/s in 12 seconds, then find the acceleration.

[Jawaban] What is the approximate size of sunspots? A. The size of a baseball field B. The size of a planet C. The size of the Moon D. We have not yet determined their size

[Jawaban] What's one supporting point for using PV cells for solar energy? PV cells contain silicon, which is

[Jawaban] The main difference between heat and temperature is that temperature solely depends on the A) state of matter. B) mass of a body. C) composition of a body. D) velocity of molecules within a body.

[Jawaban] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Jawaban] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?