(17%) Problem 6: A 65-kg skydiver jumps out of an airplane and falls 490 m, reaching...
(13%) Problem 6: Consider an appliance that consumes 4.75 kW.h of energy per day. > A 50% Part (a) What is the average power consumption, in watts, of the appliance? P= o E sin() cos tan() cotan() asin() acos() atan() acotan() sinh) cosh() | tanh() cotanh() Degrees Radians ( 7 8 ^^^V 4 5 * 1 2 + - 0 VO BACKSPACE 9 6 3 . DEL Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining:...
(6%) Problem 13: A 48 105-kg rocket is accelerating straight up. Its engines produce 1.15 107 N of thrust, and air resistance is 4.7 106 N. Randomized Variables m 4.8 105-kg f=1.15. 107 N fr=4.7 106 N What is the rocket's acceleration, using a coordinate system where up is positive? Grade Summ a 13.8 Deductions Potential Submissions tan 7 8 sin0 cos0 HOME Attempts rema (0% per attemg detailed view asin) acos) 4 6 cotan) sinh) 2 3 atan) acotan)...
(6%) Problem ll: An object with height 0.95 cm is placed a distance 21 cm in front of a thin converging lens with focal length 6.75 cm, as shown The focal point locations are indicated by the small black circles. A 20% Part (a) Calculate and enter a value for the distance between the image and the lens given the values in problem statement. di = cm Grade Summary Deductions 0% Potential 100% п 7 8 9 HOME E TA...
(11%) Problem 8: Suppose you want an oboe to produce a fundamental frequency of 116 Hz (which is below the range of a typical oboe) on a day when the temperature is 14.5°C. DA If you treat the oboe as a perfect air column which is open at both ends, how long, in meters, should the oboe be? L=1 Grade Summary Deductions 0% Potential 100% ( E sin cos t an() cotan asin() acos() atan) acotan sinh) cosh() tanh( cotanh()...
(25%) Problem 2: A vertical spring has a length of 0.15 m when a 0.175 kg mass hangs from it, and a length of 0.775 m when a 2.1 kg mass hangs from it 50% Part (a) What is the force constant of the spring, in newtons per meter? 50% Part (b) What is the unloaded length of the spring, in centimeters? Grade Summary Lo Deductions 0% Potential 100% tan Submissions sin( cosO 7 8 9 НОМE л Attempts remaining:...
(14%) Problem 2: The "lead" in pencils is a graphite composition with a Young's modulus of about 1.10 N/m. * Calculate how much shorter (in mm) the length of the lead becomes in an automatic pencil if you tap it straight into the pencil with a force of 4.8 N. The lead is 0.55 mm in diameter and 61 mm long. Grade Summary AL = 3.391 Deductions 12% Potential 88% sin() cos t an() cotan) asin() acos() atan) acotan sinh)...
(17%) Problem 6: Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1350 kg and is approaching at 6.5 m/s due south. The second car has a mass of 650 kg and is approaching at 19.5 m/s due west. 33% Part (a) Calculate the magnitude of the final velocity, in meters per second, of the cars. Grade Summary Deductions Potential 100 ( HOME sin() cos() tan() cotan() asin() acos atan acotan)...
(20%) Problem 3: A 1.25-kg mass oscillates according to the equation x(t)=0.51 cos(13.5t), where the position x(t) is measured in meters. A 25% Part (a) What is the period, in seconds, of this mass? T=1 ( HOME sin cos tan cotan() asin() acos atan() acotan) sinh) cosh tanh() cotanh Degrees Radians JT 7 8 9 E M 4 5 6 2 3 0 VO BACKSPACE 1 + END . CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per...
(25%) Problem 1: A wire carrying 415 A to the motor of a commuter train feels an attractive force of 4.1 x 10-3 N/m due to a parallel wire carrying 5.2 A to a headlight. Randomized Variables 1 = 415 A 12 = 5.2 A F= 4.1 x 10-3 N/m 8 How far apart are the wires in meters? r = 1.7 * 10-51 Grade Deducti Potentia PETITIE sin() cos tan() cotan asin() acos | atan() | acotan) | sinh)...
(906) Problem 8: Light of wavelength -536 nm passes through a single slit of width w =2.1 um and illuminates a screen L= 1.7 m away. t material, 50% Part (a) What is the maximum number of dark fringes neinges of light could this setup produce on the sereen? Grade Summar fringes 8 Deductions Potential sin() cos) tan) 7 HOME Submissions asin) acos) cotan) E 1 4 5 6 Attempts remains (4%% per attempt) detailed view atan) sinh) d acotan)...