Object A attracts object B with a gravitational force of 10 newtons from a given distance. If the distance between the two objects is doubled, what is the changed force of attraction between them?

A. 2.5 newtons

B. 5 newtons

C. 20 newtons

D. 100 newtons

What properties of mercury make it a good material to use in a thermostat

A machine is designed to lift an object wit a weight of 12 Newton's if the input for the machine is set at 4 Newton's what is the mechanical advantage of the machine

Which statement best describes the relationship between an object's density and its index of refraction? A. As the mass per unit volume of the substance increases, the refraction index decreases. B.

It is a cool winter evening, and you are feelinga little chilled. To warm yourself up, you sipsome warm tea. As you swallow, you can feelthe tea warm your mouth and throat. This teais warming you up by the process of: A. conduction. B. convection. C.

A tuning fork vibrates 88 times in 0.20 s what is its frequency

A cylindrical metal rod is 2.40 m long and 5.99 mm in diameter. The resistance between its two ends (at 20oC) is 1.38 * 10-3 Ω. (a) What is the material? (b) A round disk, 2.24 cm in diameter and 1.20 mm thick, is formed of the same material.

Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the velocity of car A exceeds the velocity of car B. Does that mean that the acceleration of car A is greater than that of car B? Explain.

A motorist enters a freeway at 45 km/h and accelerates uniformly to 99 km/h. From the odometer in the car, the motorist knows that she traveled 0.2 km while accelerating.

What is the Coriolis Force?

Einstein's general theory of relativity made or allowed us to make predictions about the outcome of several experiments that had not yet been carried out at the time the theory was first published.