Three students set up labs to determine the inertial mass of a metal sphere: ● ● Student 1 attaches the sphere to a vertical spring scale and measures the mass. Student 2 uses a spring to launch the sphere across a frictionless surface and measures its acceleration. B Student 3 sets the sphere on a triple-beam balance and measures the mass. Which student is correctly measuring the inertial mass of the sphere? Choose 1 answer: Student 1 Student 2 Student 3 All three students

Part E Problem: Thinking and Investigation 44. In testing a new material to be used in non-slip door mats. Scientists made a mat made of this new material, and did the following experiment. A force (F) was used to pull a wooden block across the mat as shown below.(5) m μ The size of the force was varied and the data table below shows the size of the force and the block's resulting acceleration. F(N) (m/s²) 20 0.25 25 0.85 30 1.35 35 1.95 Plot the data on the graph below and draw a line of best fit. Extend the line back to the 'y' axis so that you have a y-intercept point and determine the slope of the line. F (N) The industrial standard for the coefficient of friction for non-slip mats is 0.85. a) Using your slope value and your y-intercept value from the graph, determine the coefficient of friction between the block and the mat. b) Would this mat be approved for production based on its coefficient of friction? Briefly explain. 11 of

In the system shown in the figure, the ground is frictionless, the blocks have mass m and 2m, and the string connecting them is massless. If you accelerate the system to the right, as shown, the tension is the same everywhere throughout the string connecting the masses because a. the string is massless b. the ground is frictionless c. the ratio of the masses is 2 to 1 d. the acceleration of the system is nonzero e. No answer.

In an experiment conducted at Carleton university, following experimental setup has been prepared. In this experiment, block A is released from rest and strikes cart B. Neglecting the effect of friction, find the maximum displacement s that cart B travels beyond point C. The coefficient of restitution for the collision is e = 0.7. 0.6 m 30 Impact Test 3 kg 60° 1.8 m B 1 kg This region is the arc of a circle

GQ8

Two 150 kg lead spheres are suspended from 100-m-long massless cables. The tops of the cables have been carefully anchored exactly 1 m apart. Part A By how much is the distance between the centers of the spheres less than 1 m? Express your answer to two significant figures and include the appropriate units. Ax = ¹"¯μA Value Units ?

A truck is moving with constant acceleration a up a hill that makes an angle o = 17o; with the horizontal as in the figure below. A small sphere of mass m is suspended from the ceiling of the truck by a light cord. If the pendulum makes a constant angle 8 = 24° with the perpendicular to the ceiling, what is a? Note that the string is not necessarily vertical. Use g=9.8 m/s2. a = m/s²

You are given the dynamics equations that are used to solve a problem: -0.80n (1500 kg) ar n (1500 kg) (9.80 m/s²) = 0 Part B Part C Finish the solution of the problem. How far does the auto slide before coming to rest? Express your answer with the appropriate units. ► View Available Hint(s) Ax = "μA Value Units ?

James (mass 83.0 kg) and Ramon (mass 63.0 kg) are 20.0 m apart on a frozen pond. Midway between them is a mug of their favorite beverage. They pull on the ends of a light rope stretched between them. Ramon pulls on the rope to give himself a speed of 1.10 m/s. Part A What is James's speed? Express your answer with the appropriate units. VJ = Value Units

A cannonball has just been shot out of a cannon aimed 45∘ above the horizontal rightward direction. Drag forces cannot be neglected.Which way does drag point? I thought it points opposite of the direction of the motion.