4 years ago

If earth did not rotate what would happen to the global winds

1 answer:

8 0

If the Earth didn't rotate, winds would travel either North or South due to differences in temperature and pressure at different latitudes.

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A 2.24x10^3 kg car slows down uniformly from 20.0 m/s to a stop (assume constant acceleration) via a braking force of 8.41x10^3

melisa1 [442]

Answer:

Explanation: 139 m

4 0

3 years ago

Show the molecular formula and electron structure of the simplest compound that forms with only carbon and hydrogen atoms.

zavuch27 [327]

The simplest compound of hydrocarbon is methane

The formula is CH_4
It belongs to alkane group and has single bonds.

The electron structure attached

3 0

2 years ago

Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts

wolverine [178]

Answer:

0.304 m/s2

Explanation:

If the first child is pushing with a force of 69N to the right and the 2nd child is pushing with a force of 91N to the left. Then the net pushing force is 91 - 69 = 22 N to the left. Subtracted by 15N friction force then the system of interest is subjected to F = 7 N net force tot he left.

We can use Newton's 2nd law to calculate the net acceleration of the system

$a = F/m = 7 / 23 = 0.304 m/s^2$

5 0

3 years ago

How fast must a 1000 kg car be moving to have a kinetic energy of 2.0*10^3

lawyer [7]

Kinetic Energy is defined by Ke=1/2mv^2. Plug in and solve for v.

2,000 = 1/2(1000)(v)^2
4=(v)^2
v=2 m/s

The car must move at 2 m/s to have a Ke of 2,000 Joules.

6 0

3 years ago

What were the four pieces of evidence Alfred Wegener found to support his hypothesis about pangea?

sasho [114]

1 Same fossil in diff area

2 plate techtonics

3 same soil in diff area

4 they all fit like a giant puzzle

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3 years ago