A pulse moves along a 6.5 m long taught string at 21 m/s. If the tension of the string is 4.3 N, what is the mass of the string?
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A pulse moves along a 6.5 m long taught string at 21 m/s. If the tension of the string is 4.3 N, what is the mass of the string?
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- 13. DETAILS OBINPHYS8 2.P.028. ASK TEACHER A mass of 0.50 kg is attached to a relaxed spring with k = 2.6 N/m. The mass rests on a horizontal, frictionless surface. If the mass is displaced by 0.35 m, what is the magnitude of the force (in N) exerted on the mass by the spring? (Assume that the other end of the spring is attached to a wall and that the spring is parallel to the surface. Enter the magnitude.) If the mass is then released to execute simple harmonic motion along the surface, with what frequency (in Hz) will it oscillate? Hz ASK YOUR TEACHER 14. DETAILS OBINPHYS8 3.IVV.001.CHALLENGING.In 0.450 s, an 7.00-kg block is pulled through a distance of 3.00 m on a horizontal frictionless surface, starting from rest. The block has a constant acceleration and is pulled by means of a horizontal spring that is attached to the block. The spring has a spring constant of 480 N/m. By how much does the spring stretch as the block is being pulled? i mMass Attached (kg) = .055 kg Spring Force (N) = .54 N Displacement (m) = .18 Spring Constant (N/m) = ? Spring Constant is, k = mg/x
- 16. If your experimental value is g = 9.65 m/s² and the theoretical value is g = 9. 80 m/s², what is your percent error (in %)? 17. Suppose you hang a 20-g mass from a spring and it stretches 2.3 cm. What is the spring constant (in N/m) of this spring? 18. What mass (in grams) would stretch the same spring 3.2 cm?si 9. A 1.65 kg box rests on a plank that is inclined at an angle of 68.0° above the horizontal. The upper end of the box is attached to a spring with a force constant of 18.0 N/m, as shown in the figure. If the coefficient of static friction between the box and the plank is 0.28, what is the maximum amount the spring can be stretched and the box remain at rest? m f60 ssf60 ssico ss$60 ssf60** ssf60 ssf60 ssf60 ssf60 ssfossf60 ssf bood ssf60 ssf60 ss ] …………¶¶¶õõ‰¶¶¶¯¯¯ ¶ 50 ssf60 s f60 ssf60 ssf60 ss£60 SS sf60160 ssf60 ssf60 ssf60ain f60 sf60 ssf60 ssf60 ssf60 ƒ60 ssf60 ssf60 ssf2 3 Part B 3. A block of steel weighing 5 kg is stationary on a flat surface. A string parallel to the surface is pulled on with just enough force of 25.6N to get the block moving, What is the coefficient of static friction? (g = 9.8 m/s2) Note: F = Us N F = Static friction Hs = coefficient of static friction N = normal force = mg
- A 2.0 kg object compresses a spring with a spring constant of 100 N/m by a distance of 8 cm, and then the object is released. Assuming that the object maintains the same acceleration while the spring returns to equilibrium, how fast is the object moving after 1.2 s?10. A 4 kg block and a 6 kg block are slowly pushed together as a massless spring is compressed between them. After release, the 4 kg block moves away at 2 m/s. If the surface on which the experiment takes place is frictionless, determine the speed of the larger mass block. 1.3 m/s 0.2 m/s 0.5 m/s 0.7 m/s 2.0 m/sIf you pull a spring with a certain amount of force it comes back to its original shape. If you pull it with lots of force you can break it. So, what is happening if you pull the spring and it doesn't come back to its original shape?