Answer: 1.55 Jg°C
Explanation:
The quantity of Heat Energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
Since,
Q = 943 joules
Mass of oil = 10g
C = ? (let unknown value be Z)
Φ = (Final temperature - Initial temperature)
= 89°C - 28°C = 61°C
Then, Q = MCΦ
943 J = 10g x Z x 61°C
943J = 610g°C x Z
Z = (943J / 610g°C)
Z = 1.55 Jg°C
Thus, the specific heat of the oil is 1.55 Jg°C
What are the sides of the DNA ladder made of?
The sides of the DNA ladder are made of alternating deoxyribose sugar molecules and phosphate groups.
The DNA molecule has a double helix structure, resembling a twisted ladder. The sides, or rails, of this ladder are composed of two long chains of nucleotides running in opposite directions. Each nucleotide consists of three components: a deoxyribose sugar molecule, a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). The deoxyribose sugar molecules and phosphate groups alternate to form the backbone of the DNA strand. The phosphate groups link the sugar molecules together through covalent bonds, creating a strong and stable structure.
The nitrogenous bases, which include adenine (A), thymine (T), cytosine (C), and guanine (G), project inward from the sugar-phosphate backbone and form complementary base pairs (A with T and C with G) between the two DNA strands. These base pairs are held together by hydrogen bonds, which provide the specificity and complementarity necessary for DNA replication and information storage. This elegant molecular architecture allows DNA to store and transmit genetic information accurately.
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Answer : The procedure to separate the mixture of sugar, black pepper and pebbles would require physical methods.
First step is to pass the mixture through a grid that traps the pebbles in it and allows the passage of black pepper and sugar from it or alternatively, physically hand-picking up the pebbles can also be done.
Next step is to add water to the mixture to the sugar and black pepper, stir this solution until all the sugar dissolves in the water. Then pass this solution from a filter paper and collect the filtrate in a beaker.
The residue would contain the black pepper on it, it can be dried after separation.
To obtain the sugar which is dissolved in water, one can evaporate the water in it and get the sugar at the bottom of the beaker.
gravitational energy
B.
potential energy
C.
sound waves
D.
electromagnetic waves
Electromagnetic waves best describes the signals sent and received by satellites. Therefore, the correct option is option D.
In classical physics, electromagnetic radiation refers to the movement of energy through a material medium or across empty space at the speed of light in the form of the magnetic and electrical fields that comprise up electromagnetic waves like electromagnetic radiation, visible light, including gamma rays.
Time-varying magnetic and electric fields are linked to one another at right angles or perpendicular towards the direction that of motion in such a wave. The strength and wavelength v of the time fluctuation of the magnetic and electricity fields define an electromagnetic wave. Electromagnetic waves best describes the signals sent and received by satellites.
Therefore, the correct option is option D.
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Answer:
D
Explanation:
electromagnet STUDY ISLAND :)
b) cellular respiration
c) anaerobic respiration
d) cellular division
grass
B.
bacterium
C.
spider
D.
grasshopper