Which of the following caught in or caught between hazard poses the greatest risk when working in excavations and trenches? A. Being pinned B. Cave-ins C. Equipment falling into trenches D. Severing of underground utilities

melvin pulls a sled across level snow with a force of 317 N along a rope that is 33 degrees above the horizont?

A jogger runs at an average speed of 5 m/s for 3 minutes, then finishes with an average speed of 4 m/s for 2 minutes. What is his average speed in m/s for the run?

What type of conversion is taking place when natural gas is used to heat water?

Hopping into your Porsche you floor it and accelerate at 12 m/s^2 without spinning the tires. Determine the minimum coefficient of static friction between the tires and the road needed to make this possible

The frequency of wave A is 250 hertz and the wavelength is 30 centimeters. The frequency of wave B is 260 hertz and the wavelength is 25 centimeters. Which is the faster wave?

Use the data from the table to calculate the average rate of change of martian temperature t with respect to time t over the interval from 8:07 am to 9:34 am. (round your answer to three decimal places.)

Determine el valor de la potencia electrica que experimente un circuito cual se somete a 120 voltios emitidos por accion de las cargas electricas que viajan a través de el y que experimentan 4 amperios de intensidad, durante todo el trayecto del

Some wave characteristics depend upon how the wave is produced. other wave characteristics depend upon the properties of the medium.

What is the mass of oxygen in an oxygen tank at 20 C if the tank has a volume of 0.20 m3 and the oxygen pressure in the tank is 4.0 105 N/m2 (mass of one mole of one mole of oxygen is 16 g and the universal gas constant is 8.

Normal conversation in an office produces a decibel rating of 50 db. how many identical voices could you add without exceeding a sound intensity of 100 db?