A 500?g block traveling at 60 cm/s slides onto a 1?kg cart as shown. The block stops sliding before reaching the end of the cart
As the block is sliding on the cart,
which object has the larger acceleration?
1.the cart
2.the block
3.neither; the acceleration is the same
4.impossible to determine
2
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Most of the dark regions on Mars visible from Earth are:
A) features like the Valles Marineris. B) lava flows from active volcanoes. C) mountainous regions. D) the seasonal growth of vegetation on the planet. E) volcanic planes like the lunar maria.
No matter where you live on Earth, the Sun is always directly overhead at noon
Indicate whether the statement is true or false
For a spherical planet to act like a "point mass", so that externally F=GmM/r2, it
A) must have constant density throughout. B) must have a mass << r c2 / (2G). C) must have spherical mass symmetry. D) can not be hollow inside.
Jupiter's Great Red Spot is a low-pressure storm, like a hurricane on Earth
Indicate whether the statement is true or false