## What is the smallest value of f0 which is greater than 10 and for which the samples of x2(t) are exactly the same as the samples of x1(t)?

A signal x1(t) = 5 sin(20πt) is sampled at four times its Nyquist rate. Another signal x2(t) = 5 sin(2πf0t) is sampled at the same rate. What is the smallest value of f0 which is greater than 10 and for which the samples of x2(t) are exactly the same as the samples of x1(t)?  A signal x(t) = 4 cos(200πt) −7 sin(200πt) is sampled at its Nyquist rate with one of the samples occurring at time t = 0. If an attempt is made to reconstruct this signal from these samples by ideal sinc-function interpolation, what signal will actually be created by this interpolation process

### 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….