Note Feb 13, 2025

1) A toy mobile is built like the one shown below. Adequate The diagram contains no errors and each force is labeled so that it is clearly understood what each force represents. B Mathematical procedure is fully consistent with the design. All quantities are calculated correctly with proper units. Final answer is meaningful. 2 Adequate Explanation is clear, detailed, and shows physical and conceptual understanding. Explains both what was done and why. 3 Object A has a 1.0-kg mass. What should be the mass of object B? The numbers indicate the relative lengths of the rods on each side of their supporting cords. Ability A5: Is able to construct a force diagram Needs Work Inadequate FD contains no errors in vectors but lacks a key feature such as labels of forces with two subscripts or vectors are not drawn from single point, or components are drawn instead of forces. 2 1 FD is constructed but contains major errors such as incorrect mislabeled or not labeled force vectors, length of…

Which best explain the function of the pulley in the experiment on the vector addition of forces? * Pulleys were used to know the tension in the string that is the same magnitude with the weight of the hanging mass and have an adjustable direction of the equilibrant. O Pulleys were used to have an adjustable direction in locating the resultant force. Pulleys were used to hang the masses. O Pulleys were used to neglect the friction between the string and the pulley.

Hi, can you please assist me? The figure below shows two forces acting on an object at rest. Add a third force that will cause the object to remain at rest. Label the new force F⃗ 3F→3. I have tried 5 times to get this diagram correct, but it appears to be incorrect each time. Can you explain to me where the third force goes and why? I do not understand this question. Thank you!

You may want to review (Pages 821 - 822) For help with math skills, you may want to review: Part A Rearrangement of Equations Involving Multiplication and Division What is the force on the first wire in (Figure 1)? Assume that I = 8.0 A and d = 44 cm For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of The working of a speaker. O Fm1 = (4.2 x 10N, down) O Fm= (1.4 x 10 N, up) O Fm1 = (1.4 x 104N, down) O Fm 1 = (2.8 x 10-4 N, up) O Fa1 =0N Submit Request Answer • Part B What is the force on the second wire in the figure? O Em 2 = (2.8 x 10N, up) O Fen 2 = (2.8 x 104 N, down) O Fm = (1.4 x 104 N, down) O Fm- (1.4 x 104 N, up) O Fm =0N Submit Request Answer Figure « 1 of 1> • Part C What is the force on the third wire in the figure? O F = (4.2 x 10N, up) O Fm- (2.8 x 104 N, down) 2.0 cm O Fm= (1.4 x 10N, up) 2.0 cm O Fm- (1.4 x 104 N, down) OF1=ON Submit Request Answer

B. Exercises for Skill Subjects/Analysis Questions Using HOTS for Content Subjects Exercise 1: Calculate me! A 100-gram ball m1, and a 200-gram ball m2, connected by a rod with a length of 60 cm. the mass of the rod is ignored. The axis or rotation is located at the center of the rod. What is the momentum of inertia of the balls about the axis rotation? Illustration: A Ace m1 m2 B

Layout ReferenceS Matlings Review View Help " Aa▼ | Ao|:、三、、|E T AaBbCcl AaBbC AaBbCcI AABBCCD =|三|.。 Emphasis Heading 1 I Normal Subtitle Paragraph Styles EXPERIMENT ONE The purpose of this experiment is to use the given data to plot graphs and determine the experimental values of the acceleration due to gravity. A. The table below shows data taken in a free-fall experiment. Measurements were m the distance fall (y) at each of four precisely measured times. Complete the table. F off to same number of decimal places, even if you carry extra digits during your intermediate calculations. Time, t (s) (s-) yı(m) y2(m) y3(m) y4(m) ys(m) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 1.0 1.4 1.1 1.4 1.5 1.28 0.25 0.75 2.6 3.2 2.8 2.5 3.1 2.84 0.5625 1.00 4.8 4.4 5.1 4.7 4.8 4.76 1.25 8.2 7.9 7.5 8.1 7,4 7.82 1.5625 1.50 cn寸| 1249

Return to page 61 of the Student Module Booklet and begin Lesson questions 11 to 14, read each question carefully. Decide which of the choices completes the statement or answers the question. Place your answer in the I space given. 11. You can reduce the braking force required to stop a car by A. lengthening the braking time B. reducing the braking time C. increasing the friction between the tires and the road D. increasing the friction between the brake pads and drums 12. To decrease the forces experienced in an accident, A. decrease the time over which the change in momentum occurs B. increase the time over which the change in momentum occurs C. increase the change in velocity D. increase the mass of the vehicle

A window washer pulls herself upward using the bucket-pulley apparatus shown in (Figure 1). The mass of the person plus the bucket is 61 kg. Part A How hard must she pull downward to raise herself slowly at constant speed? Express your answer to two significant figures and Include the appropriate units. HA Value Units F= Submit Request Answer Figure 1 of 1 Part B If she increases this force by 13 %, what will her acceleration be? Express your answer to two significant figures and include the appropriate units. a = Value Units Submit Request Answer

A 2.0-kg mass and a 3.0-kg mass are on a horizontal frictionless surface, connected by a massless spring with spring constant k = 110 N/m . A 15-N force is applied to the larger mass, as shown in the figure below. (Figure 1) Part A How much does the spring stretch from its equilibrium length? Express your answer using two significant figures. nν ΑΣφ Figure 1 of 1 cm Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining 2 kg 3 kg 15N

Stuck need help! The class I'm taking is physics for scientists and engineers! Problem is attached. please view attachment before answering.  ***I need help with parts D and E*** Really struggling with this concept. Any help will be greatly appreciated! Please detail explain so I can fully understand how to solve.  Thank you so much.

EXPERIMENT ONE The purpose of this experiment is to use the given data to plot graphs and determine the experimental values of the acceleration due to gravity. A. The table below shows data taken in a free-fall experiment. Measurements were made of the distance fall (y) at each of four precisely measured times. Complete the table. Round off to same number of decimal places, even if you carry extra digits during your intermediate calculations. Time, ly,(m) y,(m)ly,(m)ly,(m)ly.(m)yt (s') (s) 0.00 0.00 0.00 0.00 Jo.00 0.00 0.50 1.0 1.4 1.1 1.4 1.5 0.75 2.6 1.00 4.8 8.2 3.2 2.8 2.5 3.1 4.4 5.1 4.7 4.8 1.25 7.9 7.5 8.1 7.4 B. The equation of motion for an object in free fall starting from rest is y = ½ gt, where g is the acceleration due to gravity. This is the equation of a parabola, which has the general form y = ax². Convert the curve to a straight line by plotting i versus t?. That is, plot the square of the time on the horizontal axis. Determine the slope of the line and compute the…

1. Mechanical structure of 3-DOF RPY wrist is shown in Figure 1 Joint 1 Joint 2 Joint 3 Tool point P Arm end Roil Pitch Yaw Figure 1 3-DOF RPY wrist configuration Formulate the forward kinematic model and describe the steps for frame assignment to the links of the given manipulator. b. Determine the D-H parameters of the tool point P with respect to the base for the 3 DOF manipulator а. Compute the orientation and position of the too point P for the displacement variable el=60°, e2=120° and ө3-30°. с.

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 29.7 N and the spring scale reads 17.6 N. Part A Draw a force diagram for the bag to represent the situation. Fs on B is the elastic force exerted by the spring on the bag, Np on B is the normal force exerted by the platform scale on the bag, and FE on B is the gravitational force exerted by Earth on the bag. Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded.

Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 86.0 N is applied to box A. Starting from rest, box B descends 12.2 m in 3.00 s. The tension in the rope connecting the two boxes is 37.0 N (Figure 1). Figure 1 of 1 B

110 FORCES AND EQUATIONS OF MOTION However, the integral is simply the total mass of the sphere, and we find that for r > R, the force between m and the sphere is identical to the force between two particles m and M separated a distance r. Problems For problems marked *, refer to page 520 for a hint, clue, or answer. 3.1 Leaning pole with friction Two identical masses M are pivoted at each end of a massless pole of length L. The pole is held leaning against frictionless surfaces at angle 6, as shown, and then released. Find the initial acceleration of each mass. 3.2 Sliding blocks with friction* Mass MA = 4 kg rests on top of mass Mg = 5 kg that rests on a fric- tionless table. The coefficient of friction between the two blocks is 4 kg 5 kg such that the blocks just start to slip when the horizontal force F applied to the lower block is 27 N. Suppose that now a horizontal force is applied to the upper block. What is its maximum value for the blocks to slide without slipping relative to…

In the (Figure 1) the coefficient of static friction between mass mAmA and the table is 0.50, whereas the coefficient of kinetic friction is 0.10. Ignore masses of the cord and the (frictionless) pulley.   What minimum value of mAmA will keep the system from starting to move?   Express your answer to two significant figures and include the appropriate units.   What value of mAmA will keep the system moving at constant speed? Express your answer to two significant figures and include the appropriate units.

A Ims.cisjubail.gov.sa * Question Completion Status: • In part a write the answer in one word. • In part b find A in SI unit and write the unit. • In part c write the answer as a number. QUESTION 17 A string with a mass of 4.44 g and a length of 1.51 m has one end attached to a wall; the other end is draped over a pulley a distance d= 4.00 m from the wall and attached to a hanging object with a mass 2.09 kg. If the horizontal part of the string is plucked, what is the fundamental frequency of vibration? QUESTION 18 A driver travels northbound on a highway at a speed of =26.6 m/s. A police car, traveling southbound at a speed of 65.8 m/s, approaches with its siren producing sound at a frequency of 2,309 Hz. What frequency in (Hz) does the driver detect after the police car passes him? (speed of sound v = 343 m/s) Note: Answer will be up to two decimal places Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Ans

Learning Goal: Once you have decided to solve a problem using Newton's 2nd law, there are steps that will lead you to a solution. One such prescription is the following: • Visualize the problem and identify special cases. Isolate each body and draw the forces acting on it. Choose a coordinate system for each body. Apply Newton's 2nd law to each body. • Write equations for the constraints and other given information. • Solve the resulting equations symbolically. ● Check that your answer has the correct dimensions and satisfies special cases. ● ● ● • If numbers are given in the problem, plug them in and check that the answer makes sense. • Think about generalizations or simplifications of the problem. As an example, we will apply this procedure to find the acceleration of a block of mass m2 that is pulled up a frictionless plane inclined at angle with respect to the horizontal by a massless string that passes over a massless, frictionless pulley to a block of mass m₁ that is hanging…

How do the values of µs compare to the values of µk? (Of course, you can only compare them for the same pairs of materials.)   Is the relationship between µs and µk what you expected? Explain.   What are three reasons why friction is needed?   Does the coefficient of friction change with mass?   How can we reduce friction?   What would happen if there was no friction?   Does frictional force depend on mass?   What are 3 factors that affect friction?   Is friction affected by surface area?   Can humans live without friction?   Why is the coefficient of friction less than 1? Explain.

In the figure(Figure 1) the coefficient of static friction between mass mA and the table is 0.43, whereas the coefficient of kinetic friction is 0.33. Part A What minimum value of mA will keep the system from starting to move? Express your answer using two significant figures.     Part B What value of mA will keep the system moving at constant speed? Express your answer using two significant figures.

Choose the correct letter We can apply the laws of conservation of linear momentum and angular momentum to the description of the motion of rigid bodies because   A. Forces that maintain constant distances between different pairs of point masses are internal forces (i.e. forces of constraint) B. Forces of constraint come in pairs and obey Newton’s third law (i.e. they are equal and act along the same line of action) C. In any displacement the relative distances and the orientations of different particles remain the same with respect to each other D. No network is done by the internal forces or the forces of constraint E. All of the above are correct F. None of the above is correct

If you were performing this experiment in an in-class laboratory, you would be given one or more small iron balls. These would be utilized with a variant of the Free-Fall apparatus shown in the graphic below.        (INSERT PICTURE HERE)                     You would first raise the upper black clamp to the desired height above the middle clamp. Then you would place the ball firmly in the upper clamp. Next, you would turn on the timer and adjust its initial reading to zero. After you release the ball, it falls towards the middle clamp. When it encounters this clamp, the timer stops and you can read the time of fall.             Results are usually within 10% of the standard value of g. Here, in this online version, I will supply values of height (h) and time (t). First, calculate the average time (tav) for each height and use it as described next. You will use the third equation above to calculate the value of gravitational acceleration (g) in each case. Then, you will determine the…

The class I'm taking is physics for scientists and engineers! **I just need help with part G** I have attached the problem below! Please view both attachments before answering. If you can please explain your answer so I can fully understand. Thank you so so much!

Please refer to the picture with the formulas and constants that need to be used in this problem. Harzan wants to swing from one bank of the river to the other using an overhaning vine. As he swings, he traces out an arc of a circle.  Part 1) Please draw and label a free body diagram of Harzan at the bottom of the swing.  Answer: we have to discuss the motion of the swinging person Part 2) What forces act as the radial force in the circular motion?  Answer: In the radial direction centrifugal force will act as a source of tension Part 3) Is this uniform circular motion? Explain  Answer: The motion is similar to that of a pendulum, thus the vine-swinger system acts like a physical pendulum, the motion will not be uniform circular.  Part 4) The vine is 6.2 m long, and Harzan's mass is 85 kg. At the bottom of his swing, he is travelling at 4.3 m/s. What is the magnitide of the radial acceleration that Harzan experiences?  Part 5) How much tension must the vine support in order to safely…

Item 13 A long, straight wire carries a current of 14 A. Next to the wire is a square loop with sides 1.0 m in length, as shown in the figure(Figure 1). The loop carries a current of 2.5 A in the direction indicated. Figure 14 A 1.0 m 2.5 A 1.2 m 1 of 1

Learning outcome Fundamental./ evaluation Fundamental.7 deals with the equation of motion. The use of the equation of motion to solve this problem is mandatory. Solution using other approaches (conservation of energy...) will be automatically considered false. For the problem related to Fundamental.7 sketches of the system showing: • the respective velocity and acceleration and the frame of reference considered • the forces acting on the system of considered, in other words, a free body diagram (FBD) are mandatory. Their absences will automatically make the problem false. 2 Lft The 2-lb man lies against the cushion for which the coefficient of static friction is 0.6. The angle the cushion has is 70° Determine the smallest angular velocity he rotates about the z-axis, at L-8-ft from G, to ensure the man will not slip.

ANALYSIS I Data Set 1. Imagine that a cart is rolling smoothly along alevel track as shown in the diagram at the right. A motion detector, placed at the left end of the track, records the position of the moving cart at equal intervals of time. Assume that the forces of friction are very small and can be neglected in your data analysis. The motion data is shown below. t, s x, m 0.20 0.69 0.40 0.80 0.60 1.18 0.80 1.29 1.00 1.69 1.20 1.83 You wish to learn the relationship between position and time. Time t is the independent variable and position x is the dependent variable. Enter the data into a graphing calculator or a data analysis program, plot the data and examine the resulting graph. Often, it is best to plot data as points only and omit the connecting lines between points. Most plotting programs allow you to display plotted data either way. 1. 2. Make a freehand sketch of the resulting graph. Include axes labels (variable names and units) on your sketch. Does the graph show a…

Stuck need help! The class I'm taking is physics for scientists and engineers! Problem is attached. please view attachment before answering.  ***I need help with parts A,B,C, and D*** Really struggling with this concept. Any help will be greatly appreciated! Please detail explain so I can fully understand how to solve.  Thank you so much.

The class I'm taking is physics for scientists and engineers! *** I need help with parts C and D only *** I am completely stuck. Need help. I have attached the problem. Please view attachment before answering.  Please write step-by-step solution so I can fully understand.