In the figure, an airport luggage-carrying train with a tractor T is pulling three luggage carts, and with an acceleration of 1.2 If T = 300 kg, = 200 kg, = 100 kg, and = 100 kg, then the force in the connection between cart

src="https://sciemce.com/media/4/773b8b498cf934ef13.png" class="w-image" /> and cart is







A. 840 N.

B. 480 N.

C. 240 N.

D. 120 N.

E. 0 N.

---

C. 240 N.

Physics & Space Science

The thermal motions of the atoms in a gas cloud can make it collapse to form a protostar

Indicate whether the statement is true or false

Three major greenhouse gases in Earth's atmosphere are ___________, ___________, and ____________, but ____________ is believed to contribute most to global warming

Fill in the blank(s) with correct word

Scientists are confident that the Moon does not have a large, dense nickel-iron core because

A) the Moon's surface rocks are similar in density to the Moon's average density. B) deep samples taken by the Apollo astronauts found almost no iron. C) the Earth's magnetic field would pull anything with a lot of iron into the Earth. D) unmanned Soviet missions drilled into the Moon's core and did not find iron. E) a thick atmosphere is required for there to be a metal core.

The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water. The amount of heat required to boil 1 kg of water is __________ times the amount of heat required to melt 1 kg of ice

Fill in the blank(s) with correct word