Identify an accurate statement about the deoxyribonucleic acid (DNA) molecule
A) It has four bases that pair with each other at random.
B) It looks like a spiral ladder with rails made of phosphorus and sugars.
C) It has rails made up of lipids and sulfates.
D) It has a total of eight bases.
B
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Which is the correct model to describe our Solar System?
A) geocentric B) heliocentric C) random motion D) lunarcentric E) planocentric
A small airplane with a wing span of 12 m flies horizontally and due north at a speed of 60 m/s in a region where the magnetic field of the earth is 60 ?T directed 60° below the horizontal. What is the magnitude of the induced emf between the ends of the wing?
a. 50 mV b. 31 mV c. 37 mV d. 44 mV e. 22 mV
We know that orbital changes causes changes in ice cover because they occur simultaneously
What will be an ideal response?
A horizontal force of 200 N is applied to a 55-kg cart across a 10 m level surface. If the cart accelerates at 3.0 m/s2, then what is the work done by the force of friction as it acts to retard the motion of the cart?
a. -900 J c. -350 J b. -175 J d. -700 J