Category: Physics

How do you find the ionization energy of helium? The He+ ion is just like a hydrogen atom with two units of charge in the nucleus. Since the hydrogenic energy levels depend upon the square of the nuclear charge, the energy of the remaining helium electron should be just 4X(−13. 6ev)=−54. What is meant by […]

What are the three parts of a hypothesis? A hypothesis is a prediction you create prior to running an experiment. The common format is: If [cause], then [effect], because [rationale]. In the world of experience optimization, strong hypotheses consist of three distinct parts: a definition of the problem, a proposed solution, and a result. What […]

What does it mean if something is in static equilibrium? If an object is at rest and is in a state of equilibrium, then we would say that the object is at “static equilibrium.” “Static” means stationary or at rest. The state of the object is analyzed in terms of the forces acting upon the […]

What does .2f mean in Python? %d and %. 2f are called as format specifiers, they begin with % followed by character that represents the data type. For e.g %d format specifier is a placeholder for a integer, similarly %. 2f is a placeholder for floating point number. So %d is replaced by the first […]

What is a Hawks natural enemy? eagles How big of a dog can a hawk pick up? The answer is: no. No hawk can carry off a 12-pound pet. No hawk can carry off a 3-pound pet. The largest hawk in North America (the Ferruginous Hawk) weighs at most four pounds, so leaving the ground […]

Are Bananas full of protein? Bananas are high in potassium, convenient to eat on the go, and can fuel your body during a workout just as well as a sports drink, according to one study. As if that weren’t enough, one medium banana brings 1.3 grams of protein. Can you eat 4 eggs a day? […]

What happen when a rectangular coil carrying current is placed in a uniform magnetic field? As the current carrying conductor experiences a force when placed in a magnetic field, each side of a current carrying rectangular coil experiences a force in a magnetic field. the direction of force is perpendicular to the plane containing QR […]

Is the radiation from microwaves harmful? Microwave radiation can heat body tissue the same way it heats food. Exposure to high levels of microwaves can cause a painful burn. Additionally, the lens of the eye is particularly sensitive to intense heat, and exposure to high levels of microwaves can cause cataracts. Is a 25 year […]

What is called valence? valence. [ vā′ləns ] A whole number that represents the ability of an atom or a group of atoms to combine with other atoms or groups of atoms. The valence is determined by the number of electrons that an atom can lose, add, or share. What is the importance of valence […]

What are the class characteristics of bullets? Some of the class characteristics found on a fired bullet are (1) the caliber of the bullet (diameter), (2) the number of lands and grooves, (3) the twist of the rifling (left or right), and (4) the widths of the land and groove impressions. Can police track bullets? […]