Question A cart with a mass of 235 g is moving along a track with an initial speed of 0.23 m/s when it hits a bit of eraser shaving on in the track. The eraser shaving gets stuck between the wheel and the body of the cart and acts as a brake to bring the cart to a stop. Calculate the friction of the eraser shaving if the cart stops 0.87 m past the point it hit the eraser shaving for the following scenarios: (Show your work and explain your reasoning.) The track is level and the cart is moving at a constant velocity. The track is inclined and the cart has an acceleration of 1.2 m/s2.

what is the payloads impact speed?? thanks The free-fall acceleration on a large asteroid, in the vacuum of space, is 0.45 m/s2. A spacecraft hovering 500 m above the surface drops a 25 kg payload wrapped in a padded jacket.

Shown in the figure below is a capacitor. Each plate has an area of A = 1.4e-02 m2 and has a gap d = 6.6e-04 meters. Att filled with a dielectric of constant K = 3.87. The thickness of the dielectric layer is a = 2.64e-04 meters leaving a free space Empty Capacitor Partly Filled Capacitor Area = A dielectric constant K d Write the FORMULA for the capacitance of the empty capacitor. 1 Determine the capacitance of the empty capacitor Cempty = Farads When you partly fill the capacitor, which of these best describes the new configuration: Parallel Series Both series and parallel Neither series nor parallel e-02 m2 and has a gap d = 6.62-04 meters. At the first moment, the capacitor is empty. At the second moment is it partly ayer is a = 2.64e-04 meters leaving a free space of b = 3.96e-04 meters. dielectric constant Farads - configuration: Determine the formula for the partly filled capacitor Chilled = Determine the value of the partly filled capacitor Chilled = Farads NOTE: Decide whether the partly filled capacitor acts like parallel or series by following the charge: . If the charge splits between the caps, parallel. • If the charge is the same on both caps, series, • The formula for the filled capacitor should use only the distances a and b (NOT d).

< 1 of 1 Figure 120 грm 2.0 m The 300 g bar is rotating as shown in (Figure 1). Part A What is the magnitude of the angular momentum of the bar? ? kg m² /s Submit Request Answer Part B What is the direction of the angular momentum of the bar? O into the page O out of the page

2. Assassination is a type of covert action. Do you think assassination is an acceptable action or is an action that should be forbidden, never done? Explain your answer.

v MI 7. Let (r) = for r e A := (0,0) (i) Find the pointwise limit f off (ii) Show that each f, is bounded on A but the pointwise limit f of the sequence is not bounded on A. (ii) Decide whether or not the convergence in () is uniform, prove your claim. (iv) use the e-strip to prove your claim in (iii).

A solid disk, a hoop, and a solid sphere are released at the same time at the top of an inclined ramp. Each has mass M and radius R. They all roll without slipping. In what order (fastest to slowest) do they reach the bottom of the ramp, if the moments of inertia of the disk, hoop, and sphere are ½ MR2, MR2, and 2/5 MR2? A) disk, hoop, sphere B) disk, sphere, hoop C) sphere, hoop, disk D) hoop, sphere, disk E) sphere, disk, hoop