How are waves similar and different? Different waves, same properties All kinds of waves have the same fundamental properties of reflection, refraction, diffraction and interference, and all waves have a wavelength, frequency, speed and amplitude. A wave can be described by its length, height (amplitude) and frequency. What do electromagnetic waves have in common? They […]
What is the main function of solenoid valve?
What is the main function of solenoid valve? Solenoid valves are control units which, when electrically energized or de-energized, either shut off or allow fluid flow. The actuator takes the form of an electromagnet. When energized, a magnetic field builds up which pulls a plunger or pivoted armature against the action of a spring. What […]
Why is the energy of an electron quantized?
Why is the energy of an electron quantized? This means energy is quantized. When you supply energy to an atom, the electrons inside absorb that energy and jump to higher energy levels. More the energy supplied, more excited the electrons get and eventually it is possible to separate the electrons from the force of the […]
Which plant tissue has the most important function?
Which plant tissue has the most important function? Xylem and phloem are the two most important complex tissues in a plant, as their primary functions include the transport of water, ions, and soluble food substances throughout the plant. What tissue helps growth? meristem What is a human and plant example of an organ? An organ […]
Which force is responsible for downward movement of a parachutes?
Which force is responsible for downward movement of a parachutes? gravity Which force is responsible for downward movement of parachutes will that person come down with same speed without the parachute? What type of force is friction *? Friction is the resistance to motion of one object moving relative to another. It is not a […]
What does 3NH4 mean?
What does 3NH4 mean? Explanation: There are 3 Nitrogen atoms and 12 Hydrogen atoms. The numbers 3 and 4 means that there are 3 Nitrogen atoms, and 12 Hydrogen atoms in the chemical formular (3NH4). Is K2SO4 polyatomic? Sulfate is a polyatomic ion. Is K2SO4 soluble or insoluble? K2 SO4 is very soluble in water. […]
Why can a bug walk on water?
Why can a bug walk on water? Water striders are small insects that are adapted for life on top of still water, using surface tension to their advantage so they can “walk on water.” Water acts different at the surface. The attraction between water molecules creates tension and a very delicate membrane. Water striders walk […]
At what temperature do amino acids break down?
At what temperature do amino acids break down? One concludes that amino acids do not exist in liquid or gaseous form. They decompose endothermally, with heats of decomposition between −72 and −151 kJ/mol, at well defined temperatures between 185 °C and 280 °C. Does heat kill amino acids? A protein which is made up of […]
How does the bad ozone destroy the good?
How does the bad ozone destroy the good? The stratosphere or “good” ozone layer extends upward from about 6 to 30 miles and protects life on Earth from the sun’s harmful ultraviolet (UV) rays. There they are broken down by the intensity of the sun’s UV rays and release chlorine and bromine molecules, which destroy […]
What force is it when two forces cancel each other out?
What force is it when two forces cancel each other out? If two forces of the same strength push in opposite directions, they cancel each other out. Many objects have lots of different forces pushing or pulling them all at the same time. If all the forces pushing an object cancel each other out, the […]