In physics, kinetic energy is the energy of an object in motion. kinetic energy, kkk, measured in joules (\text{j})( j, ), is calculated using the formula k =\dfrac{1}{2}mv^2k= 2 1 mv 2 k, equals, start fraction, 1, divided by, 2, end fraction, m, v, start superscript, 2, end superscript, where mmm is the mass of the object, measured in kilograms (\text{kg})( k, g, ), and vvv is the velocity of the object, measured in meters per second (\text{m}/\text{s})(m/ m, slash, s, ). rearrange the formula to solve for mass (m)( m, ). m=m=m, equals what is the mass of an object with a kinetic energy of 200{,}000\text{ j}200,000 j200, comma, 000, space, j and a velocity of 40 \text{ m}/\text{s}40 m/s40, space, m, slash, s? round your answer, if necessary, to the nearest hundredth. m=m=m, equals \text{kg}kgk, g

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?