A 3.0 ft horizontal bar is fixed at its left end in a wall. To bend it clockwise, a clockwise torque of 300 lb-ft is required. This torque can be generated if at 2.0ft from the wall (or the bending point), the beam is: a. pushed down with a 150 lb force.
b. pushed down with a 50 lb force.
c. pushed down with a 100 lb force.

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.

To fully describe the photoelectric effect, scientists must consider which of the following to be quantized? o a. both light and matter o b. matter only o c. light only o d. neither light nor matter