A spring has a length of 0.210 m when a 0.300-kg mass hangs from it, and a length of 0.800 m when a 1.95-kg mass hangs from it. What is the value of spring constant in N/m? [answer with three significant figures] [Assume g = 9.80 m/s2

1. A 25.0 cm long spring is hung vertically from a ceiling and stretches to 29.5 cm when a 7.00 kg mass is hung from its free end. (a) Find the spring constant (in N/m). crcled (b) Find the length of the spring (in cm) if the 7.00 kg weight is replaced with a 215 N weight.

A 0.25 kg mass is attached to a vertical spring. Suppose the spring has a force constant of 10 N/m and an equilibrium position of y=0 m when there is no mass attached. Where is the equilibrium position when the mass is hung from the spring? Assume downward is positive in y. (List answer in meters)

The length of a spring increases by 5.80 cm from its relaxed length when a mass of 1.40 kg is hanging in equilibrium from the spring.       What is the spring constant?     N/cm

The force constant of a spring is 129 N/m. (a) Find the magnitude of the force required to compress the spring by 4.10 cm from its unstretched length. N (b) Find the magnitude of the force required to stretch the spring by 7.24 cm from its unstretched length.

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Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). (a) What is the force constant (in N/m) of the spring in such a scale if it stretches 8.40 cm for a 13.0 kg load? N/m (b) What is the mass (in kg) of a fish that stretches the spring 5.50 cm? kg (c) How far apart (in mm) are the half-kilogram marks on the scale? mm Additional Materials O Reading 2. [-/2 Points] DETAILS OS 05. MY When a 66.8 kg man stands on a pogo stick, the spring is compressed 0.174 m. (a) What is the force constant of the spring? (Enter your answer in N/m.) N/m (b) Will the spring be compressed more when he hops down the road? O Yes MacBook Air F2 E3 D00 F4

Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). (a) What is the force constant (in N/m) of the spring in such a scale if it stretches 8.30 cm for a 10.0 kg load? N/m (b) What is the mass (in kg) of a fish that stretches the spring 5.50 cm? kg (c) How far apart (in mm) are the half-kilogram marks on the scale? mm

A spring has a length of 0.210 m when a 0.300 kg mass hangs from it, and a length of 0.750 m when a 1.90 kg mass hangs from it. (a) What is the force constant (in N/m) of the spring? 24 7 N/m (b) What is the unloaded length (in m) of the spring? 1000 m Submit Answer

A spring has a force constant of 8.1 N/m and a rest length of 0.30 m. How much force must be applied to stretch the spring to a length of 0.45 m?