What would your power output be if you climbed the stairs(walking) in 13.8 s while carrying a stack of books weighing 20 N? Your weight is 400 N and the distance traveled is 3.78 m.
What would your power output be if you climbed the stairs(walking) in 13.8 s while carrying...
While skydiving, your parachute opens and you slow down from 50.0 m/s to 8.00 m/s in 0.800 s. (a) Determine the distance you fall while the parachute is opening (b) Determine the magnitude of your acceleration during this time interval (c) Divide the acceleration found in (b) by g-9.80 m/s. Typically, some people feel faint if this exceeds 5 (5 g's). Will you feel faint? (d) What assumptions did you make in solving this problem?
20. takes 4.2 s for you to push a box across the floor at constant velocity, a distance of 16 m. What is your power output? The Hk with the floor is 0.45.
Based on the diagram below, what would be the weight percent of the solid at point N? (Give your answer in %, so if you calculate 0.10 or 10%, enter as 10) 400 L A LIQUID M 300 LIQUIDUS LIQUIDUS L+B a+L SOLIDUS DHSOLIDUS 97.5% B 200 C SOLIDUS 183°C 19.2% 61.9% 100 R* R R 100 Pure Sn 80 60 40 20 Pure Pb Composition in wt.% Sn Temperature (Do OOLVUS SOLVUS
Based on the diagram below, what would...
A friend of yours is loudly singing a single note at 400 Hz while racing toward you at 26.8 m/s on a day when the speed of sound is 347 m/s . What frequency do you hear? What frequency does your friend hear if you suddenly start singing at 400 Hz ?
Assignment 9 If you run around a half-mile track twice in 20 minutes a. What is the total distance traveled? b. What is the speed in mi/hr (show work)? c. What is the total displacement? d. What is the velocity in mi/hr? You travel east 2 miles and then turn to the north and walk another 3 miles. What is your displacement (show work, make sure to show the direction as well)? You travel 6 miles at 40 degrees. How...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 w (a) Find the intensity 10.7 m from the source W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB? Need Help? Read 11. -/2 points SerCP10 14 P023 My No A commuter train passes a passenger platform at a constant speed of 42.1 m/s. The...
1. If you are 5.5 slugs on earth, how many slugs would you be on the moon? more less the same 2. If a book weighs 10 lbs, what is the total force on it while it is in Free Fall? 10 lbs 0 lbs 20 lbs 32 lbs 3. You fire a gun at 600 m/s in a horizontal direction. One second later, what are the horizontal and vertical components of the speed of this gun, respectively? (Ignore air...
While being held captive on planet RAK, you notice that a rock takes 1.6 s to fall 2.5 m when you drop it. You also notice that a Newton scale reads 152 N when you step on it. a) what is your mass as determined on planet RAK? b) what would your mass be back on Earth?
If you weigh 660 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 16.0 km ? Take the mass of the sun to be ms = 1.99×1030 kg , the gravitational constant to be G = 6.67×10−11 N⋅m2/kg2 , and the acceleration due to gravity at the earth's surface to be g = 9.810 m/s2 . Express your weight wstar in...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 W (a) Find the intensity 10.7 m from the source. 0.76 Your response differs from the correct answer by more than 100%, w/m? (b) Find the intensity level in decibels at that distance. 118.8 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation Cary out all inter to...