Write a 350- to 700-word summary in which you discuss the value of the scientific investigation process by examining experiments from this course. The scientific method was used to conduct experiments through observations, predictions, experiments, data collection, interpretations, and drawing conclusions. You should write a coherent essay that addresses at least all the following topics: Why is creating a hypothesis and then a testable question important before conducting a scientific investigation? How do you determine which scientific tools to use for a laboratory investigation? How do you distinguish between a dependent variable, independent variable, and controlled parameters? Why is this important to the investigative process? What is the relationship between observations, data gathering, and data interpretation? How do you determine the appropriate type of graph to use for graphically representing data? What is the relationship between the predicted outcome and drawing a conclusion? Use at least one example from your labs to support your understanding of scientific investigation. APA FORMAT AND REFERENCE
need to do a lab report in the attachment the outline for the report and sample the second file the lab that you have to work in please use own words the outline.
Exactly 2.7 after a projectile is fired into the air from the ground, it is observed to have a velocity = (8.2 + 4.7 ), where the axis is horizontal and the axis is positive upward What is the horizontal range of projectile.
a 2.1*10^3 kg car starts from rest at the top of a driveway that is sloped at an angle of 20 degrees with the horizontal. an average friction force of 4*10^3 N impedes the car's motion so that the car's speed at the bottom of the driveway is 3.8 meters per second. what is the length of the driveway?
You kick a soccer ball 15 meters without hurting your foot much. You then pump the ball up until it is really hard (the extra air does not significantly change the ball’s mass) and again kick it 15 meters. This time it hurts a lot. Using the concept of impulse, explain why it hurts more in the second case.
Conservation of Energy Lab By Friday, August 23, 2013, please complete the following experiment on conservation and post it to the appropriate Discussion Area. In this lab you will conduct an experiment to study the principle of conservation of energy by observing how a toy car rolls down a ramp. At the top of the ramp, the car's energy is in the form of gravitational potential energy (mgh). When released, this energy causes the car to roll down the ramp. The car will eventually roll to a stop due to friction. The energy dissipated via friction is given by (force of friction) * (distance). You can assume that this force of friction is constant throughout the experiment. Complete a lab report following the guidelines below. See attachment for a general lab report format. Materials: A ramp consisting of a large piece of cardboard, poster board, or similar thin and smooth material A toy car such as a Matchbox car Books to vary the height of the ramp A ruler or yardstick Procedure: This experiment should be conducted on a smooth floor, such as tile, hardwood, or smooth concrete. Do not perform this experiment on carpeting. Using one or two books, raise one end of the ramp off the floor. Measure the height of the ramp. Place the toy car at the top of the ramp and release. Do not give the car an initial push. Let the car roll to a stop and measure the total distance the car rolls. Be sure to include the length of the ramp and the distance rolled. Repeat for two additional heights, using additional books to increase the height of the ramp. Record your results in the table below. Run # Height (cm) Distance (cm) 1. 2. 3. Results and conclusions: Answer the following questions based on the data collected during the experiment. Describe the different forms the energy takes during this experiment. Include the initial form of energy when the car is at rest at the top of the ramp, the final form the energy takes after the car has stopped, and any intermediate forms the energy may take. In this table, the height is proportional to what form of energy? In this table, the distance is proportional to what form of energy? Take the ratio of your second height to the first height (h2/h1). Also, take the ratio of your second distance to the first distance (d2/d1). How do these ratios compare? Do the same for the third run in terms of the first run (h3/h1 and d3/d1) How do these ratios compare? How do you explain this in terms of energy conservation?
The total volume of a new house is 800 m3. Before the heat is turned on, the air temperature inside is 10°C, and the relative humidity is 50%. After the air is warmed to 20°C, how much water vapor must be added to the air to make the relative humidity 50%? m = [removed] kg
