A simple pendulum, 2.0 m in length, is released with a push when the support string is at an angle of 25° from the vertical. If the initial speed of the suspended mass is 1.2 m/s when at the release point, what is its speed at the bottom of the swing? (g = 9.8 m/s2) a. 2.3 m/s b. 2.6 m/s c. 2.0 m/s d. 0.5

A 250 g block on a 30° ramp with μk = 0.17 is pushed against a spring. The constant of the spring is 1400 N/m and the spring is compressed 13.0 cm. After being released, the block will travel 3.4 m up the ramp (that includes the 12 cm) before shooting off the end. How fast will the block be going when it shoots off the edge of the ramp?

A .500kg block attached to a spring with length .60m and force constant 40.0 N/m, is at rest with the back of the block at point A on a frictionless horizontal air table. The mass of the spring is negligible. You move the block to the right along the surface by pulling with a constant 20.0 N horizontal force.  what's the block's speed when the black of the block reaches point B, which is 0.25 m to the right of point A.

A 10.0 kg block is released from point A in the figure. The track is frictionless except for the portion BC, of length 14 m. 10.0 kg 3.00 m B C k mmmmmm plz help and use g = 9.8 The block travels down the track, hits a spring of force constant k = 1,631 N/m, and compresses it 0.1 m from its equilibrium position as it comes to rest momentarily. Determine the coefficient of kinetic friction between surface BC and the block. Express your answer to at least two digits after the decimal point.

4. A 70.0 kg student is running at 4.0 m/s. The student jumps and grabs a rope hanging at 3.0 m from the ground without slowing down. Using the principle of energy conservation and neglecting air resistance, how high above the ground will the student swing? (g=10m/s²) a. 3.0m b. 2.7m c. 3.8m d. 4.1m 5. Which of the following is a valid way to measure wavelength? a. Crest to crest b. Node to crest c. Node to node d. Crest to trough 6. A Tesla roadster has a parallel circuit on the inside. The total current is 28 A and it has 2 resistors as shown. What is the voltage of the Tesla roadster? a. 23v b. 34v C. d. 120v 210v R= 20 R=30 1 = 28 A V = ? V