<span>The side of the worm that faces up when placed in the
tray for dissection is the smoother side.
</span>You can observe the organs of these tiny creatures by dissecting a preserved earthworm<span>. In dissecting
a worm, </span><span>lay the worm on your </span>dissecting
tray<span> <span>with its dorsal side facing up.</span></span>
Answer : 12.7 cm = 127. mm
Wave speed= Frequency x Wavelength
-> Wavelength= Wave speed divide Frequency
-> 50m/s divide 100Hz= 0.5m
Answer:

Explanation:
Angular momentum is given by mvr where m is mass of the car, v is the speed of the car and r is the distance from the centre of the lane.
In this case, mass is 2500 lbs which to convert to Kg we multiply by 0.453592 hence 2500*0.453592=1133.98
Also, the speed we convert from mph to m/s by multiplying by 0.44704 hence 30*0.44704=13.4112 m/s
Finally, the distance given in ft is converted to m by multiplying it by 0.3048
The angular momentum will then be 
Explanation:
Density = mass / volume
ρ = 5200 g / 1400 mL
ρ = 3.7 g/mL
The treasure chest has a higher density than water (1 g/mL), so it sinks.