km in a direction that is a 45° rotation from east. A boat is travelling at a speed of 30 h km in a direction that is a 270" rotation from h At a certain point it encounters a current at a speed of 10 east. What is the direction of the boat's velocity after it meets the current? Round your answer to the nearest integer. You can round intermediate values to the nearest hundredth. rotation from the eastward direction

Which of the following events is caused by a

* → M Gmail Velocity (m/s) 5 Jeffrey Sabol (Student) Main Menu 4 3 N C 0 -1 lc.lib.jmu.edu/res/jmu/constacx/HW2-P1-PHYS240-FA18.problem?symb=uploaded%2fjmu%2f41283831cd70463c3jmul1%2fdefault_1536199111%2esequence_3_jmu%... -2 YouTube Maps Contents Grades Translate Course Contents » ... » Homework 2 » HW2-P1-PHYS240.problem 0 0.5 1 1.5 2 2.5 Time (s) Post Discussion 3 3.5 4 PHYS240_0001_FA22 Submit Answer Incorrect. Tries 4/10 Previous Tries A A Timer A object starts from xo = 10 m at to = 0 and moves with the velocity graph shown. What is the object's position (in m) at t = 2 seconds? The area under the curve of the velocity-versus-time graph gives the relative change in position. 6m Notes MacBook Pro Messages C Evaluate Feed

3. The captain points her boat in the easterly direction. The boat is moving at 5.0m/s relative to the water. If there is a water current of 3.0m/s[N], what is the velocity of the boat relative to the ground? Provide proper vector line graphs

3. The current in a river moves at 2.0 m/s [S]. How fast and in what direction must a swimmer move through the water in order to have a resultant velocity relative to the river bank of (a) 3.6 m/s[S] (b) 3.6 m/s[N] (c) 3.6 m/s[E]

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A deposit cylinder at a teller drive-in window at a bank travels through the tube at a constant speed of 2 m/s. It takes 21 seconds to travel from the depositor to the teller. What is the distance (m) the cylinder travels through the tube?

Can you answer problem 4? Can you also provide a short explanation for the answer you chose?

In the amusement park ride Mr. Freeze, riders are uniformly accelerated from rest by magnetic induction motors along a 70 meter horizontal track in just 5 seconds. While accelerating, friction exerts 500N of force on the train. Then the train coasts through the loops and turns of the remainder of the ride. A train loaded with passengers has a mass of 2500 kg.    What is the gravitational force on the ride? What force does the magnetic induction motor apply to the ride? What is the coefficient of kinetic friction between the track and the ride? What is the net force acting on the ride as it accelerates?

6. Mass spectrometry uses magnetic field to separate isotopes (same element, but different atomic masses), so we can get the relative abundance of the different isotopes of a given element. For example, Chlorine has two naturally occurring isotopes: Cl-35 has a mass of 5.812 x 10-26 kg and Cl-37 has a mass of 6.144 x 10-6 kg. If both of these are ionized to a singly charged ion (q = -1.602 × 10-" C), and accelerated through a voltage of 400 V, (a) what is the diameter of the semicircular path travelled by each of the isotopes in a uniform magnetic field of 0.10 T? See the figure below for the geometry. lonizer (b) The results can be further refined by a velocity selector so only ions with a specific velocity enters the magnetic field (see below). If the electric field in the velocity selector is 2000 N/C, what magnetic field strength is needed to have only ions with speed of 4.60 x 10' m/s to pass through undeflected? In that case, what is the diameter of the semicircular path…