What muffles sound the best? The best types of surfaces for absorbing sounds are ones with jagged surfaces and hollow recesses within (much like a sponge or cardboard). The proper object captures the sound waves and bounces them around within the object until the vibrations dwindle. Does Styrofoam deaden sound? Polystyrene foams such as Styrofoam […]
What do we call a ramp and ladder combined?
What do we call a ramp and ladder combined? A wedge is a simple machine that is made of two inclined planes together. Inclined planes don’t move, but wedges do. An axe is an example of a wedge. Inclined planes are simple machines used to make work easier. Ramps, ladders, and staircases are all inclined […]
What are the 3 field forces?
What are the 3 field forces? Field forces are also called noncontact forces or at-a-distance forces. There are four types of field forces: gravity, electromagnetic forces, and the strong force and the weak force found in atoms. What are two field forces examples? Examples of force fields include magnetic fields, gravitational fields, and electrical fields. […]
What is the direction of the induced current in the circular loop of radius r?
What is the direction of the induced current in the circular loop of radius r? The direction of induced current in the circular loop will be clockwise or anti-clockwise depending upon the direction of current in the straight wire. The amount of induced current will be decided by the velocity with which the loop is […]
What are 2 facts about the troposphere?
What are 2 facts about the troposphere? Fact Sheet The troposphere contains 75% of the atmosphere’s total mass. In either space or time the troposphere is not constant. Weather occurs in the troposphere. The troposphere is 10 miles from the equator. The troposphere is 5-7 miles above the poles. Does not contain ozone. Why do […]
What are the six main structures of the central nervous system?
What are the six main structures of the central nervous system? These include structures such as the frontal and temporal lobes, the thalamus, the cerebellum, the putamen, mamillary bodies and fornix, and a convolution above the corpus callosum known as the cingulate gyrus. What are the different types of neurons of the central nervous system? […]
What are three factors that affect the flow of current in a circuit?
What are three factors that affect the flow of current in a circuit? Answer. Answer: Voltage, resistance, and whether the circuit is wired in series or parallel. The current in a circuit depends on the applied voltage and the resistance of the circuit. Why do we say current flows from positive to negative? The direction […]
How is food transported in plants explain Class 10?
How is food transported in plants explain Class 10? The phloem tissue in plants transports food materials from the leaves to different parts of the plant. As a result, the osmotic pressure in the tissue increases forcing the water to move through it. This pressure moves the materials in phloem to the tissues which have […]
What causes resistance in a wire?
What causes resistance in a wire? The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance. The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through. […]
Why did US not join League of Nations?
Why did US not join League of Nations? The League of Nations was established at the end of World War I as an international peacekeeping organization. Although US President Woodrow Wilson was an enthusiastic proponent of the League, the United States did not officially join the League of Nations due to opposition from isolationists in […]