A farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20 m along level ground. The total weight of sled and load is 14,700 N. The tractor exerts a constant 5000-N force at an angle of f = 36.9° above the horizontal, as shown in the figure. A 3500-N friction force opposes the sled’s motion. Find the total work done by all the forces on the sled.   

A cat accidently falls from the roof freely with zero initial velocity. It touches the ground 1.00 s after it falls. Ignore air resistance, what is the height of the roof?

On the planet Arrakis a male ornithoid (a bird) is flying toward his mate at 25.0 m/s while singing at a frequency of 1200 Hz. If the stationary female hears a tone of 1240 Hz, what is the speed of sound in the atmosphere of Arrakis?

A gymnast of mass 58.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. What is the tension T in the rope if the gymnast climbs the rope at a constant velocity of 5.0 m/s?

page 208 ..Q49 page 245..Q90,91 page 255..Q61 page 256..Q91 page 263..Q51, 55 make up 2.pdf

When calculating a government’s operating margin, which transaction would most likely cause an analyst to adjust the numerator downward, assuming the amount is material?

 Federal preemption of state laws is based on ________.

Compared to other states, Texas has low voter turnout.

In “Between a River and a Wall,” Khoja and Hernandez argue that ____.

Members of the Texas legislature receive a salary of _____ per year plus a per diem.