It keeps perfect time at temperature 20 degrees celcius. Select the key term that corresponds the given definition from the option. Express your answer numerically in meters per second. Crane 2 uses 20 kj to life a 100 kg box the same distance. Weekly Subscription $2.49 USD per week unt c + 7000 J unit vectors that define orthogonal directions in a plane or in space. D 550 hz, Chapter 4 & 5- Newton's 2nd & 3rd Law (Homewo, David Halliday, Jearl Walker, Robert Resnick, University Physics with Modern Physics, Volume 1 (Chapters 1-20), Hans C. Ohanian, Hans Ohanian, H C Ohanian, John T. Markert. C 21.7 min The orientation represents the direction or angle of the vector. b (1/2)a What are the directions of the tension force and friction force on the sled respectively? . A to the left A. A F amy > F zach B 100 Hz 15.25 you stand at X=o m listening to a sound that is emitted at frequency Fs. A 10 kg A 1 m/s^2 B. E What is the balls maximum speed? We say that the transform ``diagonalizes'' the matrix. A it moves from left to right and passes you at t=2s Question: Part A Which combination of the vectors shown in (Figure 1) has the largest magnitude? Then you get three equations in two unknowns. C 1.6 M/S If no such linear combination exists, the vectors are said to be linear dependent. The positive x and y directions are defined in the figure. Measurements for one seal showed that it dived straight down from such an opening reaching a depth of .30 km in a time of 5.0 minutes. we call this time t=0. I need to say which one has a bigger magnitude and the one that has a bigger magnitude is the one that the original vector is larger, which is going to be you since you is larger, you the absolute value, meaning the length of you parallel to be. C What is the position of the mass at T = 30 Which two vectors, when added, will have the largest (positive) y component? A 8.3 min Vector b has a magnitude of 4.0 m and is directed 35 West of North. If burning coal provides 100 MJ of heat, what is the theoretical minimum amount of heat that must be transferred to the river during the conversion of heat to electric energy? 90 MJ The island is too small for the plane to land on, and the only way to deliver the package is by dropping it. O t B + o - t O B - - O + of 1 Submit Request Answer t Provide Feedback
C between 1 and 2 meters A 3.7 m b 2s arrow_forward SEE MORE QUESTIONS Recommended textbooks for you arrow_back_ios arrow_forward_ios What is the earth's average density? The rock is moving upward, but it is slowing down. C 0m/s A. a 0s C very loud, low-frequency sound, A loud music with a mix of different frequencies, STT 14 beginning of the chapter A hanging spring has a length of 10 cm. D 7.50 X 10^14 Hz, 15.22 Ultrasound can be used to deliver energy to tissues for therapy. B. A second block has an acceleration of .10 m/s^2 when subject to the same force. a +2000J 100 MJ 36 Suppose the 600 W of radiation emitted in a microwave oven is absorbed by 250 g of water in a very light weight by 250 G of water in a very light weight cup. As the engine fires, it uses fuel, so it is much lighter at the end of the run than at the end of the run than at the start. b less STT 4.1 two of the three forces exerted on an object are shown. The maximum displacement of the string at that point is To understand projectile motion by considering horizontal constant velocity motion and vertical constant acceleration motion independently. B Block B exerts a friction force on block A, directed to the right D use a lighter string of the same length under the same tension C Left right B 2 m/s^2 C 40 M What is this time in seconds? e 13s A greater than 1.0 hz The current enters the tube at the bottom south corner of the window. d 10s E the car's velocity at position 3? B The frequency will stay the same 1.19 You throw a rock upward. What are (a) the magnitude and (b) the direction of vec a + vec b ? A an ice skater gliding across the ice Considering the radiator of a car as as the system, as the radiator cools down, we can say that B. 3.21 A car travels at a constant speed along the curved path shown from above in figure Q3.21 Five possible vectors are also shown in the figure. a 4.0 m ( 6 and 8 cm) A 6 cm b 8 cm C 10 cm D 12 cm E 14 cm, STT 1.1 Which car is going faster? D. The total kinetic energy of the air is decreasing and the average kinetic energy of the molecules is increasing. C. .12 KG It is in violation of the second law of thermodynamics It never gives any information about the magnitudes of the vectors, and is always deleted because the question is incomplete. component? D 20 M/s, STT 3.2 The figure shows a car rounding a corner. It is moving upward at a steady speed. B M= 6 .80 m 10 CM D a ball bouncing off the wall, 1.21 Which of the following options is described by the motion of figure Q 1.21? C. The energy used while runner is greater, the power while running is greater. Vector A represents the first leg of a walk in which a person walks 53.0 m in a direction 20.0 north of east. E 30 cm The initial speed of the cannon ball is 3.89 m/s E 5.0 S 8.17 The uniform rod in figure 8.17 has a weight of 14 N What is the magnitude of the normal force exerted on the rod by the . C 490 hz B 17.3 M/S The positions of the dots for T>or equal to 16 S are offset for clarity. c always down b 1.5 hz How far does it land from the base of the table? B velocity stays the same \hspace{2.1cm} e. a, b, and c Vectors parallel to the positive x axis have an angle of 0 . .057 KG B 5.0 M/s An athlete performing a long jump leaves the ground at a 31.7 angle and lands 7.80 m away.What was the takeoff speed? C. Both gasses have the same increase in thermal energy. The contents of which container end up at the lowest final temperature? B 2g when it is pulled to 5 degrees to the side, the restoring force is 1.0 N. what will be the magnitude of the restoring force if the ball is pulled 10 degrees to the side? D 90 degrees, 1.25 A woman walks briskly at 2.0 m/s how much wile will it take her to walk one mile? A 1700 hz, 3400 hz An object undergoing projectile motion will undergo the horizontal and vertical motions described above from the instant it is launched until the instant it strikes the ground again. imagine kit homes reviews nz; . In other words, the combination of gray and blue is . 14.5 Four mass-- spring systems have masses and spring constants shown here. B. The car and the truck are moving to the right and are speeding up. STT 4.6 Three forces act on a object. B. Lecture 3 - Chapters 3 and 4 (Jan 23, 2015) 1) Which combination of vectors shown above has the largest Determine the time taken by the projectile to hit point P velocity of a body as it has both magnitude and direction. B 14 S Is this a transverse of a longitudinal wave? Six vectors (a through f ) have the magnitudes and directions indicated in the figure. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The sine rule gives you the other angles - which gives you the direction of C. However - it is easiest to do this one in terms of components. Creating the combination. Approx. STT 1.6 Using the information in figure 1.23 what is the distance to the nearest CM in the triangle at the right? C. 720 G A. . Compare the frequencies of both. And so we're done. Which of the following must be true about the tension in the angled cable? At the instant just before the projectile hits point P B. B 1m When the eave goes across the boundary from string 1 to string 2, the frequency is unchanged, what happens to the velocity? D. The second law of thermo dynamics applies in this situation, but it is not violated because the energy did not spontaneously go from cold to hot. compare the energy used and the power during the two segments. which wave has the highest frequency? Which vector best represents which combination of vectors has the largest magnitude. A the plane wave D when is the first thime the velocity of the mass is at zero? B B+A-C. 3.19 Two vectors appear as in figure 3.19. C velocity decreases. c 8s 1/16 of that on the earth. A Hockey puck The law states that if a number of vectors acting on a particle at a time is represented in magnitude and - direction by the various sides of an open polygon taken in the same order, their resultant vector E is represented in magnitude and direction by the closing side of a polygon taken in the opposite order. C. Steam has a higher specific heat than water c 2.5 kg B betty This will- , find the angle made by the velocity vector with the horizontal. It's also larger and that will be parallel to you. A. C carl Express the swimmer's speed numerically, to three significant figures, in kilometers per hour. Another bird flies 2.0 km due west and 3.0 KM due north. A. The box and the floor are made of the same situations in all situations. B .7 s a 2.0 hz A .60 M/S Starting from rest, after what distance will this smaller plane reach its takeoff speed? . D. Water at a temperature between 50C and 100C suppose a person has injured hair cells on a segment of the basilar membrane close to the stapes. An ice-water mixture at 0C E 2 mm b up then down of the package when it hits the ground? She then undergoes a negative displacement. If a second ball were dropped from rest from height ymax, how long would it take to reach the ground? C The ball's velocity as position 3? B 2a To rank items as equivalent, overlap them. E 12.2 J a pendulum in a clock has a period of 2.0 seconds you pull the pendulum to the right- a positive displacement- and let it go. A football is kicked at ground level with a speed of 18.2 m/s at an angle of 35.6 to the horizontal.How much later does it hit the ground? The second law of thermodynamics Notice, though, that this scheme has you think . F 20dB, STT 15.8 Amy and Zach are both listening to the source of the sound waves that is moving to the right. After that, it returns along the same track. A Q>0 B the ball's acceleration at position 2 C the clock will run slow; the dial will be behind the actual time, 14.7 Rank in order from largest to smallest the time constants TA to TD of the decay of the figures. D 40dB e 5g, STT 4 A swan is landing on an icy lake, sliding across the ice and gradually coming to a stop. value? B move your hand up and down a greater distance as you generate the wave Some images used in this set are licensed under the Creative Commons through Flickr.com.Click to see the original works with their full license. B. Decreases by a factor of 2 This scale measures the largest magnitude of seismic waves without taking into account the type of wave. A first be at it's maximum negative displacement The largest possible magnitude of R = A + B is 7 units, found when A and B point in the same direction. (Figure 1)A relief airplane is delivering a food package to a group of people stranded on a very small island. B 240 J A 6.0 M At T=1s what is the displacement y of the string at x=7cm? x=(0.350 m) cos(15.0t) with T measured in seconds Express your answer in meters. A Increase TH C t1