Two springs, with force constants k1=140N/m and k2=275N/m, are connected in series, as shown in the figure. When a mass m=0.50kg is attached to the springs, what is the amount of stretch, x?

The 1.5-kg block slides along a smooth plane and strikes a nonlinear spring with a speed of v = 4 m/s. The spring is termed "nonlinear" because it has a resistance of F, = ks², where k = 900 N/m2. Determine the speed of the block after it has compressed the spring s 0.2 m.

An ornament of mass 41.4 g is attached to a vertical ideal spring with a force constant (spring constant) of 13.6 N/m. The ornament is then lowered very slowly until the spring stops stretching. How much does the spring stretch?

A spring (k = 970 N/m) is hanging from the ceiling of an elevator, and a 7.2-kg object is attached to the lower end. By how much does the spring stretch (relative to its unstrained length) when the elevator is accelerating upward at a = 0.55 m/s²?

A woman is standing erect and with her elbow flexed 90°. She has an 80 N load in her hand and it has a 0.25 m lever arm to the elbow. Her biceps creates 800 N of force and it has a 0.02 m lever arm to the elbow. The type of contraction in the biceps is:   Group of answer choices concentric isometric really big eccentric

A surgeon is using material from a donated heart to repair a patient's damaged aorta and needs to know the elastic characteristics of this aortal material. Tests performed on a 16.0 em strip of the donated aorta reveal that it stretches 3.75 cm when a 1.50 N pull is exerted on it. (a) What is the force constant of this strip of aortal material? (b) If the maximum distance it will be able to stretch when it replaces the aorta in the damaged heart is 1.14 cm, what is the greatest force it will be able to exert there?

A 0.46 kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one, and the amount that the spring stretches from its unstretched length triples. What is the mass of the second block?

A block of mass (m = 12 kg) is attached at its top to a string that goes up and loops over a pulley. The end of the string is then attached to a second block of mass (m = 16 kg) that hangs freely. The bottom of the 12 kg block is attached to a spring with spring constant (k = 120 N/m). This spring is then attached to the floor. a) What is the stretch in the spring from its relaxed position? 6) If the spring was detached from the 12 kg block, what would the acceleration of the two blocks be?

The nuchal ligament in a horse supports the weight of the horse’s head. This ligament is much more elastic than a typical ligament, stretching from 15% to 45% longer than its resting length as a horse’s head moves up and down while it runs. This stretch of the ligament stores energy, making locomotion more efficient. Measurements on a segment of ligament show a linear stress-versusstrain relationship until the stress approaches 0.80. Smoothed data for the stretch are shown. What is the approximate Young’s modulus for the ligament?A. 4 x 105 N/m2B. 8 x 105 N/m2C. 3 x 106 N/m2D. 6 x 106 N/m2

An ornament of mass 40.6 g is attached to a vertical ideal spring with a force constant (spring constant) of 45.6 N/m. The ornament is then lowered very slowly until the spring stops stretching. How much does the spring stretch?