Write a select statement that returns one row for each customer that has orders with these columns: the email_address column from the customers table a count of the number of orders the total amount for each order (hint: first, subtract the discount amount from the price. then, multiply by the quantity.) return only those rows where the customer has more than 1 order. sort the result set in descending sequence by the sum of the line item amounts

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed