## determine mathematically whether the signal is even, odd, or neither.

4. Given x(t) = 4(t + 2)u(t + 2) — 41u(t) — 4u(t — 2) — 4(1 — 4)u(t — 4) + 4(t — 5)u(t — 5), find and sketch x(21 — 4).
5. For each of the signals given, determine mathematically whether the signal is even, odd, or neither. Sketch the waveforms to verify your results. (a) x(t) = —41 (b) x(t) = Chi (c) x(t) = 5cos 31 (d) x(t) = sin(3t — (e) x(t) = u(t)

### design suitable bearings to support the load for at least 5E8 cycles at 1 200 rpm using deepgroove ball bearings.

The shaft shown in Figure P11-4 was designed in Problem 10-19. For the data in row (a) of Table P11-1, and the corresponding diameter of shaft found in Problem 10-19,….

### Find the minimum film thickness for a long bearing with the following data: 30-mm dia, 130 mm long, 0.0015 clearance ratio, 1 500 rpm, ISO VG 100 oil at 200°F, and supporting a load of 7 kN.

1.       A paper machine processes rolls of paper having a density of 984 kg/m3. The paper roll is 1.50-m OD X 22-cm ID X 3.23-m long and is on a simply supported, 22-cm OD, steel….

### Find the minimum film thickness for a bearing with these data: 30-mm dia, 25 mm long, 0.0015 clearance ratio, 1 500 rpm, ON = 30, ISO VG 220 oil at 200°F.

1.       Problem 7-12 estimated the volume of adhesive wear to expect from a steel shaft of 40 mm dia rotating at 250 rpm for 10 years in a plain bronze….