I find a spring that is labeled "80 N/m" but it is actually 3.5 inches long, before being hung from a beam. When I hang a cylinder from that spring's bottom hook, and lower it gently to stretch the spring, the bottom hook displaces downward 62 mm. What Force should the spring's bottom hook be exerting? { aside: where is the spring's bottom now? } { follow-up: what mass does the cylinder contain? } O 4.96 N upward 12.08 N downward O 2.16 N upward 12.08 N upward O 4.96 N downward 151 N downward 49.6 N upward 49.6 N downward

In this challenge, you ask you to consider the forces applied to the shoulder in the process of throwing objects underhanded, such as a softball or bowling ball. The question for this project is whether pitching a softball or throwing a bowling ball is more stressful to the human shoulder.

A light aircraft has a hydraulic braking system. Each rudder pedal is connected to a master cylinder which provides braking for one of the main landing gear wheels. Each master cylinder has a radius of ¼ inch. The cylinder on the wheel has a radius of 1.0 inch. If the system is 95% efficient and the pilot exerts a force of 55 lbs on the pedal, how much force is exerted on the brake disc by the wheel cylinder?            Answer: [ 836 lbs ]

A 2.00-m-long, 1.00-mm-diameter wire is suspended from the ceiling. Hanging a 4.50 kg mass from the wire stretches the wire's length by 1.00 mm. Use g = 10.0 m/s2. What is the strain in this wire, x10-42 Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

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?

Two identical, side-by-side springs with spring constant 240 N/m support a 2.00 kg hanging box. Each spring supports the same weight. By how much is each spring stretched?

After an unfortunate accident occurred at a local warehouse, you were contracted to determine the cause. A jib crane collapsed and injured a worker. An image of this type of crane is shown in the figure.The horizontal steel beam had a mass of 88.50 kg per meter of length, and the tension in the cable was T = 12560 N. The crane was rated for a maximum load of P 500 kg. If d = 5.000 m, s = 0.558 m, x = 1.050 m, and h = 1.980 m, what was the magnitude of W1 (the load on the crane) before the collapse? The acceleration due to gravity is g = 9.810 m/s². 444.23 Wi = N Incorrect What was the magnitude of force Fp at the attachment point P? Fp = N

Find the minimum diameter of a (50 m)-long nylon string that will stretch no more than (1 cm) when a load of (70 kg) is suspended from its lower end. Assume that the Young modulus equals to 3.51*10 N/m? 3.35 cm 3.53 cm 35.3 cm 33.5 cm

In the figure shown, calculate the necessary force F to achieve a stretch 8 = 4 mm. if the solid material has a cross section S1 = 25 cm2, and S2 = 10 cm2; Young's modulus is equal to 108 Pa. 40 cm 60 cm 52 cm 600 N 540 N F A 25 cm 4mm A 10cm

Humans can bite with a force of approximately 796 N. If a human tooth has the Young's modulus of bone, a cross-sectional area of 1.1 cm2, and is 1.9 cm long, determine the change in the tooth's length during an 7.96 ✕ 102 N bite. m