For this aircraft, each wing has an area of 24 m2.Whenthe plane is traveling at normal speed, the speed of the windbelowthe wing is taken as 200 m/s and the speed of the wind aboveisapproximately 251 m/s due to the design of thewing.a) Find the lifting force on theairplane(remember there are two wings). b) Iftheairplane is traveling at a constant altitude, estimate the massofthe plane.

OneClass: For this aircraft, each wing has an area of 24 m2.Whenthe plane is traveling at normal spee...

Question 1 of 7 0.5 Points
A 6 N force acts on a 0.3-kg object for 0.3 seconds. By how muchdoes the object's momentum change (in kg-m/s)?

Question 2 of 7 0.5 Points
A 0.4-kg object is traveling to the right (in the positivedirection) with a speed of 1 m/s. After a 0.2 s collision, theobject is traveling to the left at 3 m/s. What is the magnitude ofthe impulse (in N-s) acting on the object? The answer must bepositive.

Question 3 of 7 1.0 Points
The force shown in the attached figure is the net eastward forceacting on a ball. The force starts rising at t = 0.020 s, fallsback to zero at t = 0.062 s, and reaches a maximum force of 55 N atthe peak. Determine with an error no bigger than 25% (high or low)the magnitude of the impulse (in N-s) delivered to the ball. Hint:Do not use J = F?t. Look at the figure. Find the area of a nearlyequally sized triangle.

Question 4 of 7 1.0 Points
A bat hits a moving baseball. If the bat delivers a net eastwardimpulse of 0.6 N-s and the ball starts with an initial horizontalvelocity of 3.8 m/s to the west and leaves with a 5.2m/s velocityto the east, what is the mass of the ball (in grams)?
Part 5 of 7 -

Question 5 of 7 0.5 Points
The force sensor measures the force on the sensor due to thebumper, but the cart's momentum change arises from the force on thecart due to the bumper. Which of the following facts are needed toassert that the magnitude of these two forces are nearly equal atall times.
1. Their magnitudes differ by the magnitude of the net force on thebumper.
2. The force of friction is small.
3. The net force on the bumper is small.
4. The cart's weight is canceled by the the normal force exerted bythe track.

A. 1, 3

B. 2, 4

C. 3, 4

D. 1, 2

E. 1, 4

F. 1, 2, 3, 4

G. 2, 3

Part 6 of 7 -

Question 6 of 7 1.0 Points
A cart traveling at 0.3 m/s collides with stationary object. Afterthe collision, the cart rebounds in the opposite direction. Thesame cart again traveling at 0.3 m/s collides with a differentstationary object. This time the cart is at rest after thecollision. In which collision is the impulse on the cartgreater?

A. The second collision.

B. Cannot be determined without knowing the mass of the cart.

C. The impulses are the same.

D. The first collision.

E. Cannot be determined without knowing the rebound speed of thefirst collision. Reset Selection

Part 7 of 7 -

Question 7 of 7 0.5 Points
The force vs. time graphs for two collisions are shown. Whichcollision has the largest impulse?

A. The impulse for collision 2 since it lasts longer.

B. Cannot be determined since the masses are unknown.

C. The impulse for collision 1 since it has the larger maximumforce.

D. Cannot be determined since the initial an final speeds areunknown.

E. The impulses are the same.

I really need these questions answered ... i wouldreallyappreciate it ... Thank you

1. Two parallel conductors each of 0.50m length, seperatedby5.0e-3m and carryoing 3.0A in opposite directions, willexperiencewhat type and magnitude of mutal force? (magneticpermeability inempty space Î¼₀= 4Ïe-17 Txm/a)

2. A horizonal wire of length 3.0 carries a current of6.0A andis oriented so that the current direction is50^o S of W.The Earth's magnetic field is due north atthis point and hasstrength of 0.14e-4T. What is the direction ofthe force on thewire?

3. A proton moving at speed of 3.8e16 m/s cuts across thelinesof a magnetic field at an angle of 70^o. thestrength ofthe field is 0.25e-4T. what is the magnitude of theforce acting onthe proton? (q_p =1.6e-19C)

4. A rectangular coil (0.20m X 0.80m) has 200 turns and isinauniform magnetic field of 0.30T. if the orientation of the coilisvaried through all possible positions, the maximum torque onthecoil by magnetic forces is 0.080 N x m. What is the current inthecoil?

5. An airplane with a wingspan of 60.0m files paralleltoEarth's surface at a point where the downward component oftheEarth's magnetic field is 0.400e-4T. If the inducedpotentialbetwen wingtips is 0.900V, what is the plane speed?

6. A ping pong ball covered with a conducting graphitecoatinghas a mass of 5.0e-3kg and a charge of 4.0 Î¼C. Whatelectric fielddirected upward will exactly balance the weight ofthe ball? (9.8m/s²)

7. A superconducting wire carries a current of10⁴A. Find the magnetic field at a distance of 1.0m fromthe wire.(Î¼_o = 4Ïe-7 T x m/A)

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