A particle's trajectory is described by = (}t - 2t2) m and y 2)m, where t...
A particle's trajectory is described by x =(12t3−2t2)m and y=(12t2−2t)m, where t is in s. a.) What is the particle's speed at t=4.0s ? b.)What is the particle's direction of motion, measured as an angle from the x-axis, at t=4.0s ?
A particle's trajectory is described by x =(1/2t^3−2t^2)m and y =(1/2t^2−2t)m, where t is in s. What is the particle's direction of motion, measured as an angle from the x-axis, at t=5.0s ?
I Review Correct A particle's acceleration is described by the function a, (10-t) m/s2, where t is in s. Its initial conditions are o -300 m and vox -0 m/s att =0s. Part B What is the particle's position at that time? Express your answer with the appropriate units. Z# 1857 Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining
The velocity-versus-time graph is shown for a particle moving along the x-axis. Its initial position is x0 = 2.3 m at t0 = 0 s.(Figure 1) You may want to review (Pages 44 - 48) . Part B What is the particle's velocity at t = 1.0 s? Part C What is the particle's acceleration at t = 1.0 s?Part DWhat is the particle's position at t =3.0s ?Express your answer to three significant figures and include the appropriate units.x=?Part EWhat is the particle's velocity...
A0.16 kg pinecone falls 16 m to the ground, where it lands with a speed of 13 m/s Part A How much work was done on the pinecone by air resistance? Express your answer using two significant figures. μν ΑΣφ J Previous Answers Request Answer Submit x Incorrect; Try Again; 5 attempts remaining Part B What was the average force of air resistance exerted on the pinecone? Express your answer using two significant figures ΕΠ ΑΣφ |F
Review The z and y components of a vector T are rx 16 m and Ty -9.0 m, respectively Suppose that rs and ry are doubled. Find the direction and the magnitude of the new vector r Express your answer using two significant figures. o counterclockwise from the +r-axis Previous Answers Request Answer Incorrect; Try Again: 5 attempts remaining
The figure(Figure 1) shows the velocity graph of a particle moving along the x-axis. Its initial position is x0 = 2 m at t0 = 0. At t = 3 s , what are the particle's (a) position, (b) velocity, and (c) acceleration? Part A Express your answer to two significant figures and include the appropriate units. Part B Express your answer to two significant figures and include the appropriate units. Part C Express your answer to two significant figures and include the...
Problem 28.54 11 of 11 Constants Periodic T An electron enters a large solenoid at a 7.1 angle to the axis Part A If the field is a uniform 3.7*102T. determine the radius of the electron's helical path if its speed is 1.6x10 m/s Express your answer using two significant figures Πνα ΑΣφ ? Request Answer Submit Part B Determine the pitch (distance between loops) of the electron's helical path Express your answer using two significant figures. П- Πνα ΑΣφ...
Problem 15.65 Previous Answers Review 1 Constants A wave is described by the expression y(z, t) (4.0 cm) cos( 1.3 a-55 t), where z is in m and t is in s. Correct Part B What is the speed of the wave? Express your answer using two significant figures 0.43 m/s Submit st Answer incorrect; Try Again; 5 attempts remaining
Problem 31.29 Part A , B = 9.0x10-2 T, and V = 8.0x10 m/s. (Figure 1) What is the magnitude of the force on the proton in the figure? Assume that E = 1.4x108 V/ Express your answer to two significant figures and include the appropriate units. ? THW Value O Units F: Submit Request Answer Figure < 1 of 1 > Part B What is the direction of the force on the proton in the figure? Express your answer...