Does an object have no energy moving? Kinetic and potential energies are found in all objects. If an object is moving, it is said to have kinetic energy (KE). Potential energy (PE) is energy that is “stored” because of the position and/or arrangement of the object. And in falling, can exert forces and do work […]
What is the acceleration of a falling skydiver?
What is the acceleration of a falling skydiver? Near the surface of the Earth, any object falling freely will have an acceleration of about 10 m/s 2. What happens to a skydivers acceleration? The skydiver accelerates towards the ground. As the skydiver gains speed, their weight stays the same but the air resistance increases. There […]
What is an example of fluorescence?
What is an example of fluorescence? The most striking example of fluorescence occurs when the absorbed radiation is in the ultraviolet region of the spectrum, and thus invisible to the human eye, while the emitted light is in the visible region, which gives the fluorescent substance a distinct color that can be seen only when […]
Can coefficient of drag be negative?
Can coefficient of drag be negative? Drag coefficient cannot be negative in steady flow and a negative value of drag coefficient in steady flow indicates a computational error. It can however be zero in unsteady flow instantaneously. Negative drag is thrust. Why is drag negative? When drag is termed “positive”, that means that it is […]
What is Stonehenge aligned with?
What temperature does it need to be to sunbathe?
What temperature does it need to be to sunbathe? 88° F: Perfect beach temperature. Hot enough that you have motivation to get in the water, not so hot that you bake too quickly. 90° F: Excellent sunbathing temperature. Is 25 degrees warm enough for the beach? Refreshing, but after a while it still feels too […]
What is the effect on the pressure of a gas if you simultaneously?
What is the effect on the pressure of a gas if you simultaneously? According to the combined gas law, When we halve the pressure and double the Kelvin temperature of a gas simultaneously, then the volume of the gas will be increased by a factor of 4. Chapter 8, Problem 65AP is solved. Does water […]
What causes changes in seasons?
How do you know if a graph is direct or inverse?
How do you know if a graph is direct or inverse? Numerically: Direct Variation: Because k is positive, y increases as x increases. So as x increases by 1, y increases by 1.5. Inverse Variation: Because k is positive, y decreases as x increases. Is addition and subtraction inverse relationship? Addition and subtraction are inverse […]
What foods promote neurogenesis?
What foods promote neurogenesis? Intake of flavonoids, which are contained in dark chocolate or blueberries, will increase neurogenesis. Omega-3 fatty acids, present in fatty fish, like salmon, will increase the production of these new neurons. Conversely, a diet rich in high saturated fat will have a negative impact on neurogenesis. How does neurogenesis affect memory? […]