#4) The kinetic energy (in joules) of a moving object can be calculated from 1 point the expression 0.5mv^2, where m is the mass of the object in kilograms and v is its speed in meters per second. Find the kinetic energy of a 0.145- kg baseball that is thrown at a speed of 40 meters per second. * O E = 40.645 joules E = 116 joules O E = 29 joules O E = 1,600.645 joules

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )