What is momentum in physics definition? Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton’s second law of motion states that the time rate of change of momentum is equal to the force acting on the particle. What is […]
What is the mass on each planet?
What is the mass on each planet? Planetary Fact Sheet – Metric MERCURY EARTH Mass (1024kg) 0.330 5.97 Diameter (km) 4879 12,756 Density (kg/m3) 5427 5514 Gravity (m/s2) 3.7 9.8 How long do fart smells last? Though farts come out with varying velocities, we don’t typically smell them for about 10-15 seconds after letting them […]
Is 50 reps too much?
Is 50 reps too much? Each body is different so there is no wrong answer but just make sure you get those 50 reps. Doing 50 or more reps will guide you in your cardio training as well. This workout is especially good for sports dealing with anaerobic activity that stresses explosive movements and sprints. […]
Is entropy positive or negative?
Is entropy positive or negative? Entropy, S, is a state function and is a measure of disorder or randomness. A positive (+) entropy change means an increase in disorder. The universe tends toward increased entropy. All spontaneous change occurs with an increase in entropy of the universe. Why is entropy generation always positive? A measure […]
Which state is not a physical state of matter?
Is an LED a passive component?
Is an LED a passive component? Some examples of active devices include solenoids, relays, LEDs, and microcontrollers or any other integrated chip that uses an external supply voltage (or current) to perform work or the intended function. LEDs are light emitting diodes, and we state above that diodes are considered passive. What are the different […]
What is fission explain with example?
What is fission explain with example? many single celled organisms like protozoa and bacteria just splits into 2 identical halves during cell division leading to the creation of new organisms. this is called fission. fission is of two types : binary fission – eg: amoeba, paramecium , multiple fission – eg: plasmodium. Where is fission […]
How many chromosomes does meiosis start with?
How many chromosomes does meiosis start with? 46 chromosomes Are cells haploid after meiosis? By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell. Each daughter cell is haploid, because it has half the […]
What are the factors that affect the notched bar impact test?
What are the factors that affect the notched bar impact test? Factors Affecting Charpy Impact Energy Yield strength and ductility. Notches. Temperature and strain rate. Fracture mechanism. How can impact resistance be improved? To improve the impact resistance, manufacturers often use three ways to overcome it: Copolymer modification: It is modified during the synthesis of […]
What is the significance of RMS value?
What is the significance of RMS value? The RMS value is the effective value of a varying voltage or current. It is the equivalent steady DC (constant) value which gives the same effect. For example, a lamp connected to a 6V RMS AC supply will shine with the same brightness when connected to a steady […]