A 0.43-kg óbject connected to a light spring with a force constant of 18.0 N/m oscillates on a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest. (a) Determine the maximum speed of the object. 25.9 cm/s (b) Determine the speed of the object when the spring is compressed 1.5 cm. 23.99 V cm/s (c) Determine the speed of the object when the spring is stretched 1.5 cm. 20 cm/s (d) For what value of x does the speed equal one-half the maximum speed? 3.46 cm Need Holn3

part c is incorrect can you re do

Question 4 a through c for pratice I just know how to calculate and little confused

Problem: given vector X = 18m, 29 degrees N of W and vector Y = 9m, 80 degress S of E Determine: X-Y (express answer in Unit vectors) *Pls answer with complete solution. *draw a graph/diagram with proper labels *THREE decimal places all final answers *enclose all final answer with a box   ** I'm a little confused on how it can be solve. Can you help me? I would appreciate if you do. Thank you so much

Consider the following three forces: F₁ =(285 N)î+(468 N)ĵ, F₂ =(-127 N)î, and F3 =(-753 N)Ĵ.

The normalized 1s wavefunction (n = 1, l = 0) of any one-electron atom or ion can be written as 100 (r, 0, 0) = R₁0(r)Y(0,0) = Z3 παρ 3 where Z is the nuclear charge (number of protons) and a = πmpe2 €0h² (a) Construct an integral expression, in r, 0, and that can be used to determine the expectation value for the hydrogen atom potential energy, (V), and evaluate the integrals over and p. Be mindful of the integration volume element. En == e (b) Define x = Zr/ao and use this form to simplify the integral over r and evaluate it (using the tabulated integral provided above) to obtain an expression for (V). Your result should include a factor of V(a). Use the potential energy operator V(r) = where e represents the electron charge and is the permittivity of a vacuum. Express your result in terms of V(a) (that is, express it as something times V(a)). (c) The energy levels of one-electron atoms and ions can be written in terms of a as Z Z²e² (2²72²2) V (ao) = (E) 8περαon2 Using this and your…

q3 = 39nC

9.  Car A is driving east on the highway, traveling at 21.66ms. Car B is driving east on the same highway and passes Car A. Car B is traveling at 23.01ms. If you are sitting in Car A, what is the speed of Car B from your frame of reference?Assume the direction east is in the positive direction.speed of the second car in your frame of reference =       ms*Round to the nearest hundredth if necessary.

A jogger runs 186 meters westward, then 210 meters eastward, then 156 meters westward, and finally 84 meters eastward. For this motion, what is the distance moved? Tap button at left to enter answer using our built-in number pad. Distance (m) : %D 1 2 What is the magnitude and direction of the displacement? Magnitude (m) = Tap button at left to enter answer using our built-in number pad. Dir'n = (Tap field to change.) --

Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements A and B, as in Figure 21, then this problem asks you to find their sum R = A + B.