a hiker is climbing a steep 12 slope. Her pedometer shows that she has walked 1500 m along the slope. how much elevation has she gained?
a hiker is climbing a steep 12 slope. Her pedometer shows that she has walked 1500...
Josh is climbing up a steep 31 degree slope, moving at a steady 0.50 m/s along the ground. How many meters of elevation does he gain in one minute of this climb?
A 76 kg bike racer climbs a 1500 m-long section of road that has a slope of 4.3 degree. By how much does his gravitational potential energy change during this climb? Express your answer to two significant figures and include the appropriate units.
Figure Qla shows a safety trap for trucks (not to scale) that has been installed on a very steep slope to prevent runaway trucks from crashing. It consists of a rough run- off lane of length 20m (beginning at point A) and a buffer designed to stop the vehicle. The buffer can be modelled as a spring of spring constant 750 kN/m and natural length 4m, compressed to 1m using cables. The run-off lane provides an effective coefficient of kinetic...
5. A college student borrows $1500 during her senior year. The loan is to be paid pack in equal monthly payments starting three years after the loan is established (interest accumulates during the grace period). The APR is 2.8% compounded monthly. How much should she expect to pay per month if she only wants to have to make payments for 2 years? 6. Mary has a credit card balance of $4,300 at an APR of 12% compounded monthly. Mary has...
cked up $6,500 in debt. If Phoebe realizes that she has charged too much on her credit card and has ra she can pay $250 each month and the card charges 12 percent APR (Compounded monthly), how long will t take her to pay off the debt? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Time to pay off the debt months
A company’s CEO has 12 people reporting directly to her, and she wants to select 3 to attend the grand opening of a new retail store. How many possible ways are there of selecting 3 people to attend?
Thermal question
A 60-kg hiker plans to climb Mt Kosciuszko (2228 m) starting from Thredbo (1365m). Assume that she is 25% efficient at converting chemical energy from food into mechanical work, and that essentially all the work goes into the vertical climb. (a) (3 marks) With reference to the data above, how many servings of Nutrigrain should she eat to provide enough energy for the climb? (b) (6 marks) Climbing a mountain warms you up, and makes you sweat one...
Someone has no money and her car has no gas. She needs 5.0 litres of gas to drive home, and she decides to siphon gas from someone's vehicle in the parking lot. Fortunately, that person has a hose with an inside diameter of 3.42 cm. The diagram shows the gas tank with the hose (operating as a siphon). Remember that Bernoulli's law works along any two points on a streamline. Use points 1 and 2 along the indicated streamline to...
Question number one only please, Physics
Worksheet
1. Breaking News on CNN: Cecil has just launched a piece of dog kibble that displeased her towards the fence, violating her truce with the neighbor's dog. Early reports indicate that the kibble was launched from an elevation of 2.0-m towards the 3.5-m tal fence from a horizontal distance of 1.5-m away from the base of the fence. The kibble was launched with an initial speed of 10-m/s. (a) What is the minimum...
Nancy has built a very profitable business, and she credits the entrepreneurship program at her alma mater for a lot of her success. She would like to donate money to her old school to help one worthy graduate each year establish his or her own business. She will donate the money today, with the understanding that the first award will go to a graduate of this year's freshman class. (That is, the first award will be made four years from...