Aperson who has a weight of 165 pound-force [lbf] on earth is travelling to mars in a spacecraft. as long as the engines on the spacecraft are not operating, the person is essentially weightless during the voyage. during a course correction, the spacecraft undergoes an acceleration of 0.72 "g". the term "g" is the earth-normal gravity, so 1 "g" is 9.8 meters per second squared [m/s2]. this acceleration makes it "feel" like there is gravity in the spacecraft, and the person will have a perceived weight during the acceleration period, rather than feeling weightless. once the person reaches mars, what is the mass, in units of kilograms [kg], and weight in units of pound-force [lbf], of the person on mars? the gravity of mars is 3.71 meters per second squared [m/s2].

A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision

Need asap ! what is the relationship between atmospheric pressure and the density of gas particles in an area of increasing pressure? (2 points) as air pressure in an area increases, the density of the gas particles in that area decreases. as air pressure in an area increases, the density of the gas particles in that area increases. as air pressure in an area increases, the density of the gas particles in that area remains constant. as air pressure in an area increases, the density of the gas particles in that area increases and decreases in an alternating pattern. 3. which of the following correctly describes a way in which earth's atmosphere interacts with the geosphere? (2 points) it contains gases that living organisms breathe. it contains gases that trap incoming solar radiation. it provides a medium for cycles that provide nutrients to living organisms. it provides a medium for water to move between earth's surface and the air. 4. which of the following is considered a drawback to using wind energy as a source of power? (2 points) wind energy is nonrenewable. wind energy produces large amounts of air pollution. 5. a meteorologist predicts that the weather in a region will soon change from clear skies to probable thunderstorms. prior to making this prediction, what did the meteorologist most likely observe on a barometer? (2 points) the barometer fell slightly. the barometer fell substantially. the barometer rose slightly. the barometer rose substantially. 6. which of the following do meteorologists not typically use weather balloons to record? (2 points) atmospheric pressure cloud types humidity temperature 7. during which step in the can crush lab did water vapor force air from the can? (2 points) the can was filled nearly to the top with water. the can was placed on the hot stove top burner for several minutes. the can was removed from the hot stove top burner. the can was placed upside-down in the water-filled pan.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e