What is the length of the x-component of the vector shown below? 8
1
71°
O A. 5.2
B. 8.0
C. 7.6
O D. 2.6

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g

How are positive ions different from neutral atoms

What would be the radius of the earth if it had its actual mass but had the density of nuclei? express your answer to two significant figures and include the appropriate units.