C both use the same efficiency, 1.27 A rectangle has a length of 3.24 M and height of .532 m. To the correct number of sig figs is the area? C. 720 G B increasing the temp of the kitchen STT 2.2 Four objects move with the velocity-versus-time graphs shown. E M= 4 .80m But this is the first time I've seen it posted without even the name-labels of the vectors. The total distance travelled, in this case, is \ (20\) miles. C a sprinter starting a race C 1.33 X 10^13 Hz The initial speed of the cannon ball is 3.89 m/s 11. e 1.0 mm, 16.21 Two sinusoidal waves with the same amplitude A and frequency f travel in opposite directions along a long string, you stand at one point and watch the string. , is equal to 9.80 m/s2 near the surface of the earth. A 2.0 km Cause you to underestimate the specific heat. Which two vectors, when added, will have the largest (positive) y component? (a) The angle between the two vectors. What energy transformation is taking place? unit vectors that define orthogonal directions in a plane or in space. all three graphs have the same horizontal scale, STT 15.5 Comparing two different types of electromagnetic waves infrared and ultraviolet, we can say that C. Increases by a factor of 2 B 3.28 J The magnitude of a vector $\overrightarrow{AB}$ is the length of a line segment $\overline{AB}$. D there is a kinetic friction directed down the slope c 200 j Here the subscript 1 means that these are all at time t1 B Betty resultant force has the largest magnitude when the angle between the forces is A) 20. C. It stays the same A. D >1 kg, STT 12.7 1 kg of lead at 100 Degrees Celsius is dropped into a container holding 1 kg of water at ) degrees C. Once the lead and water reach thermal EQ , the final temp is (A=20?) which combination of vectors has the largest magnitude. E 9.0 Cm What is the mass of the second block? STT 3.3 What are the X and Y components of CX and Cy in vector C? Now you press your finger down on the string against one of the frets, making this point the new end of the string. D 20 M/s, STT 3.2 The figure shows a car rounding a corner. A frequency will increase What is the diameter of this particular ferris wheel? The second law of thermodynamics A. D. Increases by a factor of more than 2. a 0s 2.17 Figure Q 2.17 shows an object's position-versus-time graph. c. 4.5 cm Which of the following motino diagrams illustrates this motion? C first have it's maximum velocity . Neglect air resistance. B The frequency will stay the same Specify the direction of the vector. It is in violation of the second law of thermodynamics a 0s 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. dInverse Tan ( cy/cx) C q-p A northeast a conduction a series of snapshots of the wave are superimposed to produce the diagram off on the right. Suppose a styrofoam ball is shot straight down with an initial speed of 30 m/s which velocity graph is correct? B approx. It never gives any information about the magnitudes of the vectors, and is always deleted because the question is incomplete. A diver running 2.8 m/s dives out horizontally from the edge of a vertical cliff and 2.5 s later reaches the water below.How high was the cliff? STT 15.3 The figure to the right is a snapshot graph of a wave moving to the left the wave is to the right of the origin, but it will reach the origin as it moves. What i the wave speed on the string? from the plane to the island should the package be released? D 160 cm/s, 15.24 Two strings of different linear density are joined together and pulled taut. In this analysis we assume that air resistance can be neglected. Charles. A. The Vector product of two vectors, a and b, is denoted by a b. E stretch the string tighter to increase the tension Five possible vectors are also shown in the figure; the letter E represents the zero vector. A greater than 1.0 hz 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? This problem has been solved! A. imagine kit homes reviews nz; . 12.32 Suppose you do a calorimetry experiment to measure the specific heat of a penny. STT 15.2 suppose you shake the end of a stretches string to produce a wave. STT .1 A ball of weight 200 N is suspended from two cables, one horizontal and one at 60 Degree angle, as shown. B F amy = f zach C 6.73 J STT 16.4 A standing wave on a string is shown. How is the largest magnitude? C. 20 CM C upward E 15.0 m D. Water at a temperature between 50C and 100C The result of addition of vectors can be determined simply by adding two vectors (or resultant). A 75 m D 28 S, 2.26 A car can go from 0 - 60 mph in 12 S. A second car is capable of twice the acceleration of the first car. A 39 m a sinusoidal wave on the string is traveling to the right, as shown in figure 15.24. A .175 m An object undergoing projectile motion moves vertically with a constant downward acceleration whose magnitude, denoted by g As the fuel burns and the car continues to speed up, the magnitude of the acceleration will Ignoring air resistance , what will be the velocity Vy of the rock when it falls back into the volcano's crater? Express your answer to three significant figures and include the appropriate units. The mass of P is larger than the mass of Q. See Answer .89 J D Goes from 0 M/S to 3.0 M/s in 1 S, 2.19 A car is traveling at vx= 20 m/s . A 1g For all parts, assume that the "island" refers to the point at a distance D from the point at which the package is released, as shown in the figure. N, northeast B) 20. Express your answer using two significant figures and include the appropriate units. It is not a violation of the second law of thermodynamics because refrigerators can have efficiency of 100%. Express your answer to three significant figures and include the appropriate units. A always down the ramp D 2 C 0 D 30.0 Min, STT 11.1 crane 1 uses 10 kj of energy to lift a 50 kg box to the roof of the building. c radiation STT 2.3 Which velocity- versus time graph goes with the position versus- time graph on the left? We're always here. C T<200 N. STT 5.2 A martian lander is approaching the surface. STT 5.7 Boxes P and Q are sliding to the right across a frictionless table. A wooden toy hangs from a spring, when you pull it down and release it, it reaches the highest point of its motion after 1 s. What is the frequency of its oscillation? theoretical efficiency of a heat engine? What are the two lowest frequencies at which dogs have an increased in sensitivity? 16.20 At t=1.5 s what is the value of y at x=10 cm Vectors parallel to the positive x axis have an angle of 0 . What are the values of the velocity vector components v1,x and v1,y (both in m/s) as well as the acceleration vector components a1,x and a1,y (both in m/s2)? The following video gives the formula, and some examples of finding the magnitude, or length, of a 3-dimensional vector. D the sun shines on a black surface and warms it, B a ball rolls up a ramp, decreasing in speed as it rolls higher. At X=3cm what is the earliest time that y wil equal 2 mm? F 20dB, STT 15.8 Amy and Zach are both listening to the source of the sound waves that is moving to the right. C between 1 and 2 meters A (1/4 a) B 50 C However, analytical methods are more concise, accurate, and precise than graphical methods, which are limited by the accuracy with which a drawing can be made. Assume they are equal intervals of time in between both videos. C both balls are in the air for the same amount of time, 3.18 Which combination of the vectors shown in figure 3.18 has the largest magnitude? This procedure of adding two or more vectors is more challenging than scalar addition. D immediately begin slowing down and eventually stop, 4.27 as shown in the chapter, scallops use jet propulsion to move from one place to another. STT beginning chapter 16 a 170 HZ wave in air has a wavelength of 2.0 m. The frequency is now 340 HZ what is the new wavelength? To rank items as equivalent, overlap them. B to the right D downward, downward, 4.28 Dave pushed his four-year old son, Thomas across the snow on a sled. C 8.0 m Which is a dust particle settling to the floor at constant speed, which is a ball dropped from the roof of a building and which is a descending rocket slowing to make a soft landing on mars? A. In which direction does the object accelerate? The car and the truck are moving to the right and are speeding up. C 3.0 S Calculate how far from its intended position will it be after 12 min You got in your car drove 40 miles east, then got on a highway and went 50 miles north. D 170m e 2.5 s The magnitude of a vector is a scalar quantity, which means it is a single value without a direction. A linear combination of vectors~a and~b is an expression of the form ~a+ ~b. At the instant just before the projectile hits point P E. Increases by a factor of more than 2. Six vectors (a through f ) have the magnitudes and directions indicated in the figure. These engines provide a nearly constant thrust force. Which of the models below has twice the frequency of the original wave? B 1.76 m/s The earth's mass is 5.94 X 10^24 ks and its volume is 1.08 X 10^12 km^3. D 16 m B Increase TC B B+A-C. 3.19 Two vectors appear as in figure 3.19. B it moves from right to left and passes you at t=2s D M=5 1.0 m What is the fundamental frequency of this tube? B. A Q>0 How many seconds after the light turns green does he reach his cruising speed of 6.0 M/S^2? A constant force, F is exerted on block B, causing block B to accelerate to the right. Kho St Cng Trnh Ngm kent, wa police news today. A f1 A 1 m/s^2 C southwest d 7.50 m what other properties of the gas necessarily change( more than one answer might be correct) D 3.0 S, STT 3 a player kicks a football straight up into the air . STT 5.6 The terminal speed of a styrofoam ball is 15 m/s. which combination of vectors has the largest magnitude. B. c Kool 3.5 B 1.0 M/S E 1.0 M, STT 16.3 a 2 m long string carries a standing wave as in the figure to the right. A .35 hz Sometimes you may here the unit vector called a direction vector, because all it really does is tell you what direction the object is going in. , changes continuously. A 50 hz C the frequency is inversely proportional to the period, so a shorter period implies a higher frequency. E 12.2 J There may be more than one correct answer; if so, give all that are correct. D 2.0 N. D The restoring force is proportional to the displacement. . Rank in order from largest to smallest, the horizontal forces of P,Q and H A the clock will fun fast; the dial will be ahead of the actual time Vector B B size 12{B} {} has magnitude 34. Assume they are equal intervals of time in between both videos, STT 1.2 Three motion diagrams are shown. d evaporation, 12.27 A tire is inflated to a gauge pressure of 35 PSI. C the pressure of the gas B. d -2000J c. By recycling elements. which combination of vectors has the largest magnitude. B upward, downward b 60 dB The total kinetic energy of the air is increasing and the average total kinetic energy of the molecules is decreasing C Left right Dogs have a much larger ear canal- 5.2 cm- than humans. B 20m.s B infrared has a shorter wavelength and higher frequency than ultraviolet $3\lambda + \mu = 5$. .Express tH in terms of v0, , and g (the magnitude of the acceleration due to gravity). The driver apples brakes and the car slows down at ax=-4.0 m/s^2 what is the stopping distance? Find the maximum height above the cliff top reached by the projectile. D 1.44 X 10^17 S, STT 11.2 A runner is moving at a constant speed on level ground. C 40 M The cars are light- most of the weight comes from the rocket engine- and friction and drag are very small. A Increasing the temperature inside the fridge B The normal force, acting upward B neon They all reach the same maximum height h. Ignore air resistance. A 8.3 min B. As the swan slides, the direction of the acceleration is C 3.772 M A 15m E 2 mm Which of the following changes would increase the range of the ball shown in the original figure? A p+q B P-Q . The newly shortened string is 4/5 o the length of the full string. The frequency would decrease STT 2 A bicycle is moving to the left with increasing speed. A n>800 n 0 m 34. Express the swimmer's speed numerically, to three significant figures, in kilometers per hour. c 2.0 m B. What are vector magnitude and direction? What can we say about the temperatures of the two samples? how far from the base of the cliff will the car hit? B T=200 N A A+B+C C 36 S A first be at it's maximum negative displacement C 20 cm What was the speed of the diving seal? The formula is: r = (A^2 + B^2 - 2ABcos), where A and B are the magnitudes of the original vectors,and is the angle between the vectors. D Friction acting opposite the direction of motion C a car pulling away from a stop sign The following diagram shows how to find the magnitude of a 3D Vector. funny tradie interview. b 1/2 [Hint: First draw a diagram.] D 6.0 M/S Six vectors (a through f ) have the magnitudes and directions indicated in the figure. B 5.0 M/s Visit Stack Exchange . We normally think of the car's engine as supplying the force needed to accelerate the car, but is this true? 2.22 Chris is holding two softballs while standing on a balcony. A or B? b Kool 2.85 List all that apply 12.30 The thermal energy of a container of helium gas is halved. Express the time in terms of v0, , and g. Find H, the maximum height attained by the projectile.Express your answer in terms of v0, , and g. Find the total distance R (often called the range) traveled in the x direction; see the figure in the problem introduction.Express the range in terms of v0, , and g. To swim directly from A to B, what speed us c thermal energy, STT chapter 11 beginning B 7.50 X 10^12 HZ Which two vectors, when added, will have the largest (positive) x component? B 2 m/s^2 B. a 1.0 cm E 210 m, 3.25 a car drives horizontally off a 73 m-high cliff at a speed of 27 m/s. C 18.4 M/S attachment theory grief and loss. B t1=t2 B 90 m A Increasing the temperature inside the fridge Express your answer using three significant figures and include the appropriate units. B. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. C Infrared has a longer wavelength and lower frequency than ultraviolet 50 S STT 2.1 Which position vs. time graph best describes the motion diagram to the left? Determine the distance X of point P STT 2.5 A particle moves with the velocity-versus-time graph shown here. What is the mass of water? Ignore air resistance. Sample 1 has twice the as many atoms as sample 2. C The pattern of resonance frequencies of your vocal tract has changed, thus changing the formants, C The pattern of resonance frequencies of your vocal tract has changed, thus changing the formants. B B+A-C. 3.19 Two vectors appear as in figure 3.19. 3.22 A ball is fired from a cannon point 1 and lands the trajectory shown in figure 3.22. D Kool 285, 15.21 What is the frequency of blue light with a ave length of 400 nm ? A F amy > F zach A 1.72 M B- False. Express your answer numerically in meters per second. + 20 m, 45 deg. A. A the cars velocity at position 1 B Block B exerts a friction force on block A, directed to the right STT 2.4 An elevator is moving downward. Is the magnitude of a vector a scalar? In one minute, the temperature of water rises by 20C. Rank from largest to smallest. Enter your answers using three significant figures separated by a comma. A there is no friction force Which graph best represents the object's velocity? A t1>t2 Why would a programmer want to overload operators rather than use regular member functions to perform similar operations? The largest possible magnitude of R = A + B is 7 units, found when A and B point in the same direction. O - P 0 - - O P + OP-7 Submit Request Answer Figure 1 of 1 > Provide Feedback P . Express your answers using three significant figures separated by a comma. C 3.0 M Problem 1. The current enters the tube at the bottom south corner of the window. A Block exerts a friction force on block A Calculate the mass percentage of each element in the following organic compounds to four significant figures. The hand, H is slowing them down . d 2a Ignore air resistance In other words, norms are a class of functions that enable us to quantify the magnitude of a vector. The tmp of the gas and the volume of the container are both increased. e -340 j, STT 11.3 Two samples of ideal gas, sample 1 and sample 2, have the same thermal energy. B 6.4 cm/s 1.28 The earth formed 4.57 X 10^9 years ago. The speed at which the package hits the ground is really fast! Unfortunately, this position has fallen consistently to date due to, the appalling fluctuation in the non- oil export promotion, the world prices of agriculture C. The energy used while runner is greater, the power while running is greater. D 5.0 cm The energy used while walking is greater, the power while running is greater STT 1.7 P and Q are two vectors of equal length but different directions. Which is the missing third force? Several British earthquakes took place over the space of just three weeks. C. Stays the same F m= 4 1.0m. The fish can then bring the tip of its mouth close to the surface and shoot the drops of water at the insects resting on overhead vegetation or floating on the water surface. Which gas has the greatest increase in its thermal energy. C 100 m Is the tension in rope 2 greater than, less than or equal to the tension on rope 1? Vectors are identified by magnitude, or the length of the line, and direction, represented by the arrowhead pointing toward the terminal point. As dave pushed, Thomas speeds up. D 8.7 m, 14.29 very loud sounds can damage hearing by injuring the vibration sensing hair cells on the basilar membrane. C >50 C, STT 12.8 Suppose you are an astronaut in the vacuum of space, hard at work in your sealed spacesuit. E 5.0 S E. A water- steam mixture at 100C, 12. Which vector best represents B .7 s A Height 4 cm Base 12 Cm It is slowing its descent by firing its rocket motor. If this speed were increased by just 5.0%, how much longer would the jump be? The net force points directly to the left. B 5.50 X 10^6 Kg/M^3 B Q=0 A Steam is hotter than water B First have its maximum speed C gear Shift Even though the horizontal and vertical motions can be treated independently, they are related by the fact that they occur for exactly the same amount of time, namely the time t