What do plant cells have that animals cells do not? Animal cells have centrosomes (or a pair of centrioles), and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not. How a cell is like a […]
Which is the electron configuration for lithium 1s2?
Which is the electron configuration for lithium 1s2? Element Atomic number Electron configuration lithium 3 1s22s1 beryllium 4 1s22s2 boron 5 1s22s22p1 carbon 6 1s22s22p2 Which is the correct electron configuration for sodium Na? [Ne] 3s¹ What is the longhand configuration for silver? 1. The ground state electron configuration of ground state gaseous neutral silver […]
Is 40 psi good tire pressure?
Is 40 psi good tire pressure? 1. What’s The Recommended Tire Pressure For My Car? Normal tire pressure is usually between 32~40 psi(pounds per square inch) when they are cold. So make sure you check your tire pressure after a long stay and usually, you can do it in the early morning. How much does […]
What is the relationship between refractive index and wavelength?
What is the relationship between refractive index and wavelength? v = f. Combining the above expression for velocity with the definition of index of refraction, we find a relationship between the wavelength = v/f in a medium and the wavelength 0 = c/f in vacuum: In the above equation, the frequencies cancel because frequency does […]
Why does river discharge increase downstream?
Why does river discharge increase downstream? Changes Downstream As one moves along a stream in the downstream direction: Discharge increases, as noted above, because water is added to the stream from tributary streams and groundwater. As discharge increases, the width, depth, and average velocity of the stream increase. Why are river profiles concave? River profiles […]
What is simple harmonic motion write its any four characteristics?
What is simple harmonic motion write its any four characteristics? (i) In SHM, acceleration of the particle is directly proportional to its displacement, and directed towards the mean position. (ii) It can be represented by a single harmonic function of sine or cosine. (iii) Total energy of the particle executing SHM remains conserved. (iv) It […]
What is the magnetic field intensity inside the current carrying solenoid?
What is the magnetic field intensity inside the current carrying solenoid? is zero at all points. What kind of current is produced by current carrying solenoid? Answer. Answer: when we pass current through a solenoid, it produces a magnetic field similar to a bar magnet. What means solenoid? : a coil of wire usually in […]
Why do land breezes occur at night?
What kind of charging occurs when you slide your body across a plastic surface?
What kind of charging occurs when you slide your body across a plastic surface? Electrostatics: When a person slides across a plastic surface, the plastic produces a net negative charge and your body surface a net positive charge. What will happen if you switch the battery so that the positive end is on the right […]
What is an example of physical evidence?
What is an example of physical evidence? Examples of physical evidence include a document, a hair, fibers, fingerprints, soil, and blood. Class Characteristics are properties of physical evidence that can be associated only with a group and never with a single source. What are the classification of physical evidence? According to the general nature of […]