Physics Lab 3

*Learning material says that the answer is T1 = 373.17 N and T2 = 701.33 N, but it didn't show a solution. Kindly show how the problem is solved.

this is not the actual problem it is just the practice one, I just need a step by step on how to solve it because my teacher did not really teach this in class. thank you for any help you are able to provide.

*items 8,9,10 *I hope you can answer those problem. Thank you.

Part A Suppose an apple (mass 200 g) sits at the edge of a cliff with height h. The apple then tips over the edge and hits the ground with a speed of 27 m/s. How tall is the cliff? Express your answer with the appropriate units. HA Value Units Submit Request Answer ovide Feedback Lab_Work Ener..docx A V Lab_Conserv.docx MacBook Air

review Engineering Dynamics Part B What is the normal reaction on the car when the it is at B? Express your answer to three significant figures and include the appropriate units.       NB =   Part C What is the normal reaction on the car when the it is at C C? Express your answer to three significant figures and include the appropriate units.       NC =

We often think of friction and air resistance as forces that we want to minimize because they can hinder the motion of an object.  But they are not always undesirable, and in fact, can be an essential element in a machine or process. Identify one or two applications that depend on friction and air resistance.  Explain how friction or air resistance works in those situations and what would happen if there were no friction or air resistance.  Your initial post should be 75-150 words in length and is due on Sunday.

Force and Accelaration A group of students conducted an experiment to determine the relationship between the force acting on the object and its acceleration. They used identical rubber bands to pull the cart as shown in Figure 8. They varied the number of rubber bands to vary the force acting on the cart. They started with 1 rubber band, then with 2, 3, and 4 rubber bands, making sure that they stretched the rubber bands to the same length every time they pull the cart. They used a ticker tape timer to determine the acceleration of the cart. A ticker tape was connected to the cart such that when the cart was pulled, the paper tape will be pulled through the timer. And as the paper tape was pulled through the timer, small dots are formed on the tape. Starting with the tape for 1 rubber band, they marked the first clear dot and every 6th dot thereafter and cut the tape along these points (Figure 9). Then they pasted the strips side by side in order on a graphing paper to produce the tape…

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…

Review I Constants I P A car has a mass of 1500 kg. If the driver applies the brakes while on a gravel road, the maximum friction force that the tires can provide without skidding is about 7000 N. Part A If the car is moving at 26 m/s, what is the shortest distance in which the car can stop safely? Express your answer to two significant figures and Include the approprlate units. HA Az = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Provide Feedback FEB 13 J O stvN

A student lets a toy car roll four times down a ramp that is 1 m long. Each time the student covers the surface of the ramp with a different material. The student measures the time it takes the car to roll down the ramp and records the results in the table below. Time to complete Material Ramp (s) 4 8 Y 5 Which of these would be the best conclusion based on the data in the table? O Different surfaces affect how fast a toy car accelerates. O Different toy cars travel at different speeds. O Gravity has little effect on the speed of toy cars on different surfaces. O Air resistance is the greatest factor in limiting the acceleration of different toy cars.

Four friends are studying how balls move down a ramp. They want to see how the motion of the balls changes when different materials are used for the balls and ramp. They keep the ramp at the same length and height. The balls are all the same size. Ball Material Ramp Material Rubber Wood Wood Cardboard Glass Plastic Displacement What are the friends most likely trying to study? A. the time it takes each ball to travel down the ramp B. the thickness of the ramp and the size of the balls ol vew o ai terw C. the distance that each ball travels down the ramp Segen D. the heat that is made when each ball travels down the ramp

Return to page 61 of the Student Module Booklet and begin Lesson 3. For questions 11 to 14, read each question carefully. Decide which of the choices BEST completes the statement or answers the question. Place your answer in the blank 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

Referring to the figure below: a. Set up the equations of motion that is required to solve the problem. b. Determine the magnitude of W in the figure so that the 200 lb. body will have an acceleration up the plane of 4.025 fps^2. 200 lb =0.20 30° W Ib

we have this simulation values : You will be starting with a crate that has a mass of 100 kg and a coefficient of sliding friction of 0.3 and a coefficient of static friction of 0.5. answer this questions : Q1- Place the crate on the ramp with the angle at 20o. What is true about the parallel force and the friction force if the crate does not go down the ramp? Slowly increase the angle until the block JUST starts to move.  Use the angle to calculate μs and compare to the given value for μs for the crate.

A Moving to another question will save this response. Quèstion 11 Newton's second law of motion states that O a. Acceleration of an object is directly proportional to the force and inversely proportional to its volume. O b. Acceleration of an object is directly proportional to the force and inversely proportional to its mass and direction of acceleration will be the opposite to the direction of force. O C. Acceleration of an object is directly proportional to the force and inversely proportional to its mass an direction of acceleration will be the same as direction of force. d. Acceleration of an object is inversely proportional to the force and directly proportional to its mass and direction of acceleration will be the same as direction of force.

Open Response 3. This is a multi-part problem. Please answer all parts here. A 0.6 kg block is pulled up a rough 30° incline by a light string The string applies a constant force to the block. The block starts from rest and travels a distance of 2 m up the incline n 10 s. The coefficient of kinetic friction between the block and the incline is 04. a What is the block's acceleration? b. What is the tension in the string? Et L Cn

The Screamin Demons Question The Screamin Demons (Dr. Weiss and Mr. Devinney) have entered a bobsled race. The sled run is at an angle of 29. Dr. Weiss has come up with a super slick bobsled with a coefficient of friction of 0.0112. The combined mass of the two dare devils and their bobsled is 200 ke. What will be the Screamin Demons acceleration down the bobsled run? Question 1* Calculate the weight F, of loaded bobsled. Your answer Question 2 * Calculate the force of gravity in the x-plane, Fgx- Your answer Question 3 * Calculate the force of gravity in the y-plane, Fy Your answer Question 4 * What is the net force in the y-plane, Fnet.y?

The pulley system shown in the figure is used to lift a m= 67-kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume the masses of the chains, pulleys, and ropes are negligible. Determine the force F required to lift the crate with constant speed. Determine the tension in the upper chain. Determine the tension in the lower chain.

Part A A baseball thrown at 100 mph, about the limit of what a professional pitcher can do, slows to 94 mph on its way to the plate. What fraction of its initial kinetic energy is lost? Express your answer using two significant figures. Klost K; %3D Submit Previous Answers Request Answer

Two identical boxes with mass m are placed on inclined surfaces with coefficient of kinetic friction and connected by a light rope passing through a frictionless pulley as shown in the figure. Which of the following gives the correct expression for the system's accelera- tion? A. a = (sin 3-sina) - B. a (sin 3-sina) - C. a = (sin a-sin 3) - D. a (sin a sin 3) - (cosa = - = (cosa + cos 3) (cosa - cos (3) (cosa + cos 3) cos 3) α |6|× m B

*** The question mark boxes are a multiplication symboL!! For the vectors in the figure, a = 6.8, b = 3.3 and c = 7.56. Calculate a x b. A positive value is for the z-component coming out of the page. The units are m. Calculate a x c Caclulate b x c   THIS IS MULTIPLICATION PLS HELP

One of the complicating factors in analyzing motion is the presence of friction. It is difficult to isolate the effect of friction and to imagine what motion looks like without it. Newton's 2nd law of motion states that a force applied to a mass will cause an acceleration, f = ma. UNLESS THE PROBLEM STATES OTHERWISE, assume the experiments below are performed on a surface of smooth ice so that the effect of friction is negligible. 1) a. Imagine a cube-shaped mass of 100 kg. If two people push it to the right, one with a force of 150 N, and one with a force of 220 N, what acceleration should the cube experience? b. Instead, if one person pushes to the right with a force of 150 N, and the second person pushed to the left with a force of 220 N, what acceleration should the cube experience?

2. To test the durability of an engineered plastic container, its inventor drops a sample of it from the top of a 50-m high building. a. How long will it take for the container to hit the ground? b. Determine the speed of the container as it hits the ground

The rod is supported by ball-and-socket joint D and cables AB, AC as shown in (Figure 1). Suppose that F = 500 N and x = 6 m. A)  Determine the tension in the cable AB. B)    Determine the tension in the cable AC. C) Determine the x, y, and z components of reaction at support D using scalar notation.

Directions: Using the component method, solve the following problems. Show your complete solutions. Express your answers in two decimal places.