
#2 Question 2: The 20kg cart moves to the right at the speed of 6( )....
A 6000-kg cart carrying a vertical rocket launcher moves to the right at a constant speed of 30.0 m/s along a horizontal track. It launches a 40.3-kg rocket vertically upward with an initial speed of 46.1 m/s relative to the cart. How high will the rocket go? Where, relative to the cart, will the rocket land? How far does the cart move while the rocket is in the air? At what angle, relative to the horizontal, is the rocket traveling...
A proton moves to the right with a speed of 4.44 middot 10^6 m/s into a region of constant magnetic field as shown in the figure below. The magnitude of the magnetic field is 2.94 middot 10^-2 T and the direction of the field is out of the page. When the proton initially enters the magnetic field, the magnitude of the force on the proton (in N) is When the proton initially enters the magnetic field, the direction of the...
My answer is 3.6 m/s. Am I right? The question is - A 20 kg cart moving at 10m/s bumps from behind an 80kg cart initially moving at 2m/s in the same direction. The two carts stick to each other after the collision. Calculate the speed of the carts after they collide.
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
Question 9 Correct 1.00 points out of 1.00 p Flag question A cart of mass 316 g is placed on a frictionless horizontal air track. A spring having a spring constant of 8.41 N/m is attached between the cart and the left end of the track. The cart is displaced 433 cm from its equilibrium position. (a) Find the period at which it oscillates. Answer: 1.217054264s You're right The correct answer is: 1.22 s Question 10 Correct 1.00 points out...
Question 2 (6 marks) A vane with an angle of 30° is attached to a cart (Figure 2). The cart and vane (mass of 75 kg) move on a level track with a constant speed of 10 m/s. The vane receives a jet of water (p = 1000 kg/m) that leaves a stationary nozzle with speed of 35 m/s. The nozzle exit area is 0.003 m². Assume that this cross-sectional area of the water stream does not change as it...
The Boxcar 1 moves to the right at speed v1 = 5.4
m/s. Boxcars 2 and 3 are initially at rest. The total momentum
before interaction is
LE! 1 3 Diagram is snapshot before collision. Mass of each boxcar = 10,000 kg.
6. A wire of length, 1 -04 m, parallel to the x axis moves in the x-y plane The B-field is parallel to the z-axis and points downward. Determine: (a) the induced emf in the wire; (b) the current in the wire if R 0.25 ohm. 7. A converging lens has a focal length, f 40 cm. If an object is placed at do 70 cm and whose height, ho 10 cm determine: (a) di; (b)m (c) h A charge,...
A proton moves to the left with a speed of 1.25 · 106 m/s into a region of constant magnetic field as shown in the figure below. The magnitude of the magnetic field is 1.91 · 10-2 T and the direction of the field is into the page. When the proton initially enters the magnetic field, the magnitude of the force on the proton (in N) is A: 2.160×10-15 B: 2.872×10-15 C: 3.820×10-15 D: 5.081×10-15 E: 6.757×10-15 F: 8.987×10-15 G:...
please help with #7 and question 6 (the last question)
3. Rescale the axes if necessary to see all of the graphs. Answer the following questions: a. At the instant the push ends, what does the force equal? F= b. At the instant the push ends, what does the acceleration equal? a= c. At the instant the push ends, what can you say about the speed of the cart? Look carefully at the graphs on the computer monitor. 4. Use...