Select the correct answer

If a car is traveling along a highway at a speed of 30 meters/second, what distance will it cover in one minute?

0.5 meter

A.

B.

2 meters

c.

90 meters

OD. 180 meters

E. 1,800 meters

Which of the following is an element? a. o2 b. CaCl2 c. HPO4 d. CO2 (also i'm freshman in high school, idk why it's saying middle school)

The two dry sand samples are examined by changing one parameter. The independent variable, the one that is intentionally manipulated between the two samples, is the (temperature over time, mass of each sample, or type of material used)

A monochromatic beam of light has a frequency of 7.69 * 10^14 hertz. What is the energy of a photon of this light? (1) 2.59 * 10^-40 J (3) 5.10 * 10^-19 J (2) 6.92 * 10^-31 J (4) 3.90 * 10^-7 J

What Happens When Two Forces Act In The Same Way

A small spaceship with a mass of only 2.6 ✕ 103 kg (including an astronaut) is drifting in outer space with negligible gravitational forces acting on it. If the astronaut turns on a 12 kW laser beam, what speed will the ship attain in 1.

When you are travelling downhill on a roller coaster, you experience a light feeling in your stomach. why?

Sound waves transport: a. only matter b. only energy c. both matter and energy d. matter when passing through a medium and energy passing through vaccum

What's the number 9?

A car travels along a straight line at a constant speed of 60.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 30.0 mi/h.

Why is it dangerous to be exposed to X-rays but not (or at least much less) dangerous to be exposed to radio waves?