How fast are laser beams in mph? Move your wrist very quickly, and the point of laser light may easily travel 50 feet in half a second — an equivalent speed of 68 mph (110 km/h). Can I bounce a laser off the moon? For the first time, scientists have successfully bounced a laser off […]
What is the difference between a pelican and a puffin crossing?
What is the difference between a pelican and a puffin crossing? Puffin. Crossings differ from Pelican crossings, as they do not have a flashing green man/flashing amber signal. This layout encourages pedestrians waiting at the crossing to look at the approaching traffic at the same time as looking at the red man/green man signal. Who […]
How do you write 78000 in scientific notation?
How do you write 78000 in scientific notation? To write 78,000 in scientific notation: 70, 000 = 7×10. 7.8×104 (Note that 78,000 is a whole number, so we dropped the zeros) How do you write 0.002 in scientific notation? Therefore, the decimal number 0.002 written in scientific notation is 2 × 10-3 and it has […]
How old is the oldest living thing on earth?
How old is the oldest living thing on earth? 5,000 years old What animal on earth lives the longest? Ming, a quahog clam, died at the age of 507 when researchers tried to dredge the bivalve up from Icelandic waters. The quahog’s life-span is usually about 225 years. (Also see “405-Year-Old Clam Called Longest-Lived Animal.”) […]
How can I be perfect in physics?
How can I be perfect in physics? Best Ways to Study and Do Well in Physics: Good understanding of the basics: Memorizing basic equations: Strengthening your math skills: Studying derivations: Analyze problems: Focus on important aspects of each problem: Utilize drawings: Making use of correct units: Is physics harder than math? General perception: Physics is […]
Can the resultant of 3 vectors be zero?
Can the resultant of 3 vectors be zero? Answer. Three vectors are coplanar which means all three vectors are in the same plane. If direction of resultant of those two vectors is exactly opposite to the direction of the third vector. If all above conditions are satisfied, then the resultant of three vectors will be […]
How do I make my bestie miss me?
How do I make my bestie miss me? Understand the squabbles and disputes among groups of young people are common. Stop talking so much when you are with your friends. Don’t be too touchy-feely. Don’t appear uninvited. Keep yourself busy. Don’t be the one to start the chat in social networking sites. Disappear now and […]
What is the formula for acceleration using distance and time?
What is the formula for acceleration using distance and time? Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes […]
What is the process of an electromagnet?
What is the process of an electromagnet? An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil. […]