To answer the problem we would be using this formula which isE = hc/L where E is the energy, h is Planck's constant, c is the speed of light and L is the wavelength
L = hc/E = 4.136×10−15 eV·s (2.998x10^8 m/s)/10^4 eV
= 1.240x10^-10 m
= 1.240x10^-1 nm
Answer:
It depends on their masses, and the distance between them.
Explanation:
According to Newton's Law of Universal Gravitation, every particle in the universe attracts any other particle with a strength that is directly proportional to the product of its masses and inversely proportional to the square of the distance between them. Mathematically it is expressed as:
Where:
Answer:
The most likely abundant organelle in skeletal muscle cells are know as myofibrils which is a contractile apparatus mostly containing the contractile proteins actin and myosin with the regulatory proteins troponin and tropomyosin.
In addition the skeletal muscle cell cytoplasm contains numerous mitochondria, as well as abundant glycogen to provide energy. The contractile elements of skeletal muscle cells (myofibrils) are thin cylindrical structures 1–2 µm in diameter.
Explanation:
Skeletal muscle fibers, or muscle cells, are formed from the fusion of developmental myoblasts in a process known as myogenesis. Muscle fibers are cylindrical and have more than one nucleus. They also have multiple mitochondria to meet energy needs. Muscle fibers are in turn composed of myofibrils.
The myofibril is a long cylindrical organelle found in skeletal muscle cells formed by two transverse filament systems: the thick and thin filaments. The thin filament is composed primarily of actin; it is tethered at one end to the Z-disk, and it interdigitates with the thick filaments. Thaey slide past one another, producing a contraction that changes both the length and the shape of the cell to produce force and motion.
The skeletal muscle vigorous activity and unusually high energy requirement is powered by organelles known as mitochondria which resist the force of gravity, generate heat by shivering, pump blood, move substances through hollow organs and produce strong bodily movements.
Answer:
W = 46 J
Explanation:
We need to find the angle between the two vectors Force vector and displacement vector.
First we will find the angle α of the force vector
Then we find the angle β of the displacement vector
With these two angles we can find the angle between the two vectors
∅ = α + β = 25.56 deg
The definition of work is given by the expression
The absolute value of F will be:
The absolute value of d will be:
Now we have:
The doppler effect is when waves’ wavelengths get squished when the source is moving toward you or stretched when the source is moving away from you. it can be observed with sound waves but not light waves because the speed of light is just too fast, meaning that we can’t move toward or away fast enough. (also some stuff with relativity).