What is tan90 value? The value of tan 30 is 1/√3. What is the value of Cosec 0? The value of cosec at 0° is the reciprocal of sin at 0°. How do you find the value of Cosec? Find the value of cosec(−1410∘) Therefore write 1410∘ as (4×2π−30∘) and proceed. Complete step-by-step answer: We […]
What are pollutants give example?
What are pollutants give example? These are those which are emitted directly from the source and persist in the form in which they were added to the environment. Typical examples of pollutants included under this category are ash, smoke, fumes, dust, nitric oxide, sulphur dioxide, hydrocarbons etc. What are the major sources of pollutants? The […]
What is the strongest alloy?
What is the strongest alloy? Steel What are some examples of alloys? An alloy is a mixture or metallic-solid solution composed of two or more elements. Examples of alloys include materials such as brass, pewter, phosphor bronze, amalgam, and steel. What alloys do we use everyday? List of Alloys and Their Composition and Uses Name […]
What is a good example of instantaneous speed?
What is a good example of instantaneous speed? At a given instant time what we read from the speedometer is instantaneous speed. For example, a car moving with a constant speed travels to another city, it must stop at red lights in the traffic, or it should slow down when unwanted situations occur in the […]
What is the intensity of UV light?
What is the intensity of UV light? The intensity of UV radiation is measured in the units of milliwatts per square centimeter (mW/cm2) which is energy per square centimeter received per second. Also, it is measured in the units of millijoules per square centimeter (mJ/cm2), which is energy received per unit area in a given […]
Is it better to be upstairs or downstairs in an earthquake?
Is it better to be upstairs or downstairs in an earthquake? In an earthquake, the area immediately outside a building is the most dangerous place to be. The taller the building, the wider the danger zone. A basic rule of thumb is if you are inside, stay inside and if you are outside, stay outside. […]
How do igneous rocks look like?
How do igneous rocks look like? Extrusive, or volcanic, igneous rocks look dull and do not sparkle much because they are fine grained. These crystals make a coarse-grained igneous rock called plutonic, or intrusive, igneous rock because the magma was intruded into cracks deep under the earth’s surface. What type of rock is granite? Granite […]
What is U value of insulation?
Is angular momentum conserved rolling without slipping?
Is angular momentum conserved rolling without slipping? In rolling motion without slipping, a static friction force is present between the rolling object and the surface. A rigid rotating body has angular momentum directed along the axis of rotation. 11.4: Conservation of Angular Momentum. In the absence of external torques, a system’s total angular momentum is […]
Why is it difficult for a high speed car to negotiate an unbanked turn?
Why is it difficult for a high speed car to negotiate an unbanked turn? (a) A huge force is pushing the car outward. (b) The magnitude of the friction force might not be enough to provide the necessary radial acceleration. A car negotiating an unbanked road at high speed is actually accelerating as the direction […]