What if the boy and the girl pull the heavy crate at the same time? Originally Answered: A boy and a girl are pulling a heavy crate at the same time with 10 units of force each. If they’re pulling in the same direction, then the net force is 20 units. If they’re pulling in […]
What are 3 benefits of biodiversity?
What are 3 benefits of biodiversity? Increase ecosystem productivity; each species in an ecosystem has a specific niche—a role to play. Support a larger number of plant species and, therefore, a greater variety of crops. Protect freshwater resources. Promote soils formation and protection. How do humans benefit from biodiversity? Biodiversity plays a crucial role in […]
How do you zero a triple beam balance?
How do you zero a triple beam balance? The triple beam balance is used to measure masses very precisely; the reading error is 0.05 gram. With the pan empty, move the three sliders on the three beams to their leftmost positions, so that the balance reads zero. What is the uncertainty of the triple beam […]
How do you control speed and torque of a DC motor?
How do you control speed and torque of a DC motor? Torque Control Torque can be controlled directly by controlling the armature current. Fig. In Fig. 10.8a, a phase-controlled rectifier, in combination with a dc-link filter inductor, can be used to create a variable dc-link current which can be applied directly to the armature terminals […]
What is tissue and function?
What is tissue and function? Tissue is a group of cells that have similar structure and that function together as a unit. Primary types of body tissues include epithelial, connective, muscular, and nervous tissues. Epithelial tissues form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in […]
How do variables affect the result of the research study?
How do variables affect the result of the research study? The key to designing any experiment is to look at what research variables could affect the outcome. The independent variable is the core of the experiment and is isolated and manipulated by the researcher. The dependent variable is the measurable outcome of this manipulation, the […]
What does the slope of the best fit line represent?
What does the slope of the best fit line represent? The Line of Best Fit Equation and Its Components The coefficient of each independent variable represents the degree of change in y for each additional unit in that variable. In a simple regression with one independent variable, that coefficient is the slope of the line […]
How does low pressure affect the body?
How does low pressure affect the body? Lower air pressure pushes less against the body, allowing tissues to expand. Expanded tissues can put pressure on joints and cause pain. What weather is low pressure associated with? Low-pressure systems are associated with clouds and precipitation that minimize temperature changes throughout the day, whereas high-pressure systems normally […]
How do you solve a spring pulley problem?
How do you solve a spring pulley problem? Hint: To solve this type of problems, the first step is to find the mean position of the spring mass system i.e. the natural length of the spring is the position of equilibrium point. Second step is to displace the object from its mean position, the restoring […]
Can permafrost melting be reversed?
Can permafrost melting be reversed? The cold air stops the permafrost from thawing. Another way to stop damage from thawing permafrost is to thaw the ground first. This method makes the ground more stable to build on. Then there is no danger of the ground beneath the new structure refreezing, because the structure keeps the […]