In the figure, an airport luggage-carrying train with a tractor T is pulling three luggage carts, and with an acceleration of 1.0 If T = 300 kg, = 200 kg, = 100 kg, and = 100 kg, then the force in the connection between cart

src="https://sciemce.com/media/4/dbb7a8fd287d574913.png" class="w-image" />and cart is







A. 700 N.

B. 400 N.

C. 200 N.

D. 100 N.

E. 0 N.

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D. 100 N.

Physics & Space Science

Wire is wound on a square frame, 30 cm by 30 cm, to form a coil of 7 turns. The frame is mounted on a horizontal shaft through its center (perpendicular to the plane of the diagram), as shown in the figure

The coil is in clockwise rotation, with a period of 0.060 s. A uniform, horizontal, magnetic field of magnitude 0.40 T is present. At a given instant, the plane of the coil forms a 60° angle with the horizontal, as shown. At that instant, what is the magnitude of the emf induced in the coil? A) 13 V B) 23 V C) 2.1 V D) 3.6 V E) 26 V

Where do we find the youngest parts of Earth's crust?

A. at the tops of mountains B. subduction zones C. at the bases of mountains D. ridges on the ocean floor E. None of these choices are correct.

How does the light-collecting area of an 8-meter telescope compare to that of a 2-meter telescope?

A) The answer cannot be determined from the information given in the question. B) The 8-meter telescope has 16 times the light-collecting area of the 2-meter telescope. C) The 8-meter telescope has 4 times the light-collecting area of the 2-meter telescope. D) The 8-meter telescope has 8 times the light-collecting area of the 2-meter telescope.

UPC price scanners at supermarket checkouts use laser holography to read the bar codes because the packages are three dimensional

Indicate whether the statement is true or false