1. Which object size resulted in the production of the greatest impact force? 2. What is your evidence? 3. How does adding speed to the falling object change its impact force? 4. What is your evidence from the lab or your personal experience? If you are using a personal experience, please describe that experience and how it supports your claim. 5. It is widely believed now, based on indirect evidence, that an asteroid led to the mass extinction of dinosaurs here on Earth about 66 million years ago. Describe how it is possible for that particular asteroid to cause so much devastation when our plant is bombarded with space rocks every day

Air is held within a frictionless piston-cylinder container, which is oriented vertically. the mass of the piston is 0.45 kg and the cross-sectional area is 0.0030 m2. initially (state 1) the pressure of the gas is sufficient to support the weight of the piston as well as the force exerted by the atmospheric pressure ( 101.32 kpa). the volume occupied by the air within the cylinder in state 1 is 1.00 liter. one end of a spring (with spring constant k = 1000 n/m) is attached to the top of the piston, while the other end of the spring is attached to a stage that can move vertically. initially the spring is undeflected and therefore exerts no force. then the stage is then moved quasistatically downward a distance of 10.0 cm, at which point the system reaches state 2. the piston-cylinder is not insulated; rather it remains in diathermal contact with the surroundings, which are at a constant temperature of 300 k. what is the change of pressure within the container?

The speed of light can be used to measure the

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point