Please help to explain the following graphs & questions in attachment. An object of mass is attached to a vertically oriented spring. The object is pulled a short distance below its equilibrium position and released from rest. Set the origin of the coordinate system at the equilibrium position of the object and choose upward
(See attached file for full problem description)
I understand how to find vertical and the horizontal components when I know my velocity and angles. But now they have thrown in a question that is with net Force and I just don't get it. Please help! The question is as follows A net force of 17.0 N is applied to a 0.34-kg soccer ball for 0.090 s, causing it to move off
A ball is thrown at a 45-degree angle with a velocity of 28.28m/s. How far from the thrower does the ball land?
Energy/Motion problems 4. A 10-kg box is pushed by from rest by a 100-Newton force at a 30 degree angle downward with respect to the horizontal. The coefficient of friction between the box and the floor is 0.35. Determine the box's velocity (in meters/second to two decimal places) after the box has been moved through a distan
Have a couple of puzzling questions having trouble answering. 1. Since the force that acts on a bullet when a gun is fired is equaland opposite to the force that cats on the gun, does this imply a zero net force and therefore the impossibility of an accelerating bullet? Explain 2. When you jump upward the earth recoils bac
Displacement s=2t-1.8In(0.6+2t) Show expressions for velocity and acceleration of the particle.
A horizontal has a fluid flowing through it. The fluid(density = 1000kg/m^3) is flowing through it at the rate of 2 x 10^-4 m^3/s. The inside diameter of the larger portion is 3 cm and that of the diameter of the constriction is 1 cm. Find the pressure difference that exists between the larger and the constricted sections.
An ice skater starts spinning at the rate of 1.5rev/s with arms extended. she then pulls her arms close to her body, resulting in a decrease of her rotational inertia to three-quarters of her initial value. What is the skater's final angular velocity?
1) A 70.2 kg skater is carrying a 2.5 kg snowball and moving forward with a velocity of 9.7 m/s. The skater throws the snowball forward with a speed of 33.4 m/s. Determine the speed of the skater after hurling the snowball. 2) A 2.34 kg cannon is at rest. When ignited, it fires a 56.7 g tennis ball forward with a speed of 80.4
1. Figure one in the attached diagram indicates the path through space of the water balloon. On the diagram, place arrows indicating the: (a) velocity vector (b) the acceleration vector for te balloon. Label which is which. Do this for the three points indicated on FIGURE 1. 7. The plot (in the figure attached) shows t
If a volleyball, which weighs .330 kg, is thrown down towards the ground with a speed of .150 m/s it takes .655 seconds to make contact. Just before it reaches the ground, what is the magnitude of the momentum?
The figure shows a nozzle on a hose carrying water. If the pressure at point 1 is 283 x 10^3 Pa, the velocity 0.68 m/s, and the diameter 10 cm, given that the diameter at point 2 is 2.5 cm what is the velocity to the nearest tenth of a m/s at point 2? What is the pressure to the nearest kPa at point 2?
A group of physics students construct a device to launch water balloons. They launch a water balloon on a level football field, with an initial velocity of 8.0 m/s at an angle 38 degree above the horizontal. a. Find the vertical component of the initial velocity. b. Find the horizontal component of the initial velocity. S
8) If an ostrich with a mass of 184.9 kg and is running northward with a velocity of 20.4 m/s, then with what velocity must a chicken run with a mass of 46.2 kg to have the same momentum as the ostrich? 9) Air bags are designed to protect passengers during collisions by extending the time of impact. A force of 81.9 Newtons is
4. A bowling ball of mass 4.0kg strikes a 10-pin of mass 0.80kg. The ball's velocity was 1.5m/s before the collision, but after the collision it is 1.2m/s. What is the velocity of the pin just after the collision? Treat this as a one-dimensional situation: we assume that the ball hits the pin "square". 5. A 60kg bicyclist is
A car is traveling downhill with a constant velocity. Which of the following are true? (a) There is a net force acting on the car in the downhill direction. (b) There is a net force on the car in the uphill direction. (c) There is a net vertical force acting on the car. (d) There is no net force acting on the car.
The initial (t=0) position, velocity, and acceleration of an object moving in simple harmonic motion
The initial (t=0) position, velocity, and acceleration of an object moving in simple harmonic motion (with center at the origin x=0) are xi=3.00 cm, vi=4.00 cm/s, and ai=-7.00 cm/s2, respectively. Use the cosine function to specify the position. (a) Determine the angular frequency of the motion. rad/s (b) Determine the
A harmonic wave is given by y(x,t) = 4cos(3.61x - 6.1t). To the nearest hundredth of a meter what is the wavelength? What is its period to the nearest thousandth of a second? What is the velocity of the wave to the nearest hundredth of a m/s? What will be the value of y to two decimal places in problem 1 if x = 1.07 and
The velocity of waves on a string is 277 m/s. If the frequency of standing waves is 131 Hz, how far apart are the nodes?
After an intense battle against physics test, some guy goes to his dorm, exhausted and wounded. While eating his hybrid beetle- cockroach stumbling around. In a quick relocation plan, the guy gives it a gentle flick:(see attachment for diagram): The bug is flicked at a 45 degree angle with an initial velocity of 2 m/s. If the
(See attached file for full problem description with diagrams) --- ? A 9.26-kg sign is hung using two cables which make an angle of 34.5 degrees with the horizontal. Determine the weight (in Newtons) of the sign. ? Referring to the previous problem.) Determine the tension (in Newtons) in a single cable. ? A 55.9-kg sig
1. A 1-kg block of wood is dropped from a position 2.4 meters above a resting 0.05-kg ball. Shortly thereafter, the ball is shot horizontally at a velocity of 28 m/s. If the wood is 8.4 meters away from the ball in the horizontal direction, determine the distance (to two decimal places) the wood falls from its original position
A runner of mass m runs around the edge of a horizontal turntable mounted on a vertical, frictionless axis through its center. The runner's velocity relative to the earth has magnitude v. The turntable is rotating in the opposite direction with an angular velocity of magnitude omega relative to the earth. The radius of the turnt
If a planet has a mass of 9.42 x 1024 kg and a radius of 5.47 x 106 meters, to the nearest m/s what is its escape velocity? If the mass is increased by a factor of 2, what is the new escape velocity? If the radius is decreased by a factor of 0.22, what is its new escape velocity? (See attached file for full problem desc
(See attached file for full problem description with diagram and symbols) --- 1.) A thin, 80.0 disk with a diameter of 9.00 rotates about an axis through its center with 0.220 of kinetic energy. What is the speed of a point on the rim? 2.) A 3.0-m-long rigid beam with a mass of 100 kg is supported at each end. An 8
Potential Flow Theory : Find the resultant velocity vector induced at point A by the uniform stream, line source, line sink, and vortex.
Find the resultant velocity vector induced at point A by the uniform stream, line source, line sink, and vortex. Please see the attached file for the fully formatted problem. ---
A 2.28 N force is applied to the plunger of a hypodermic needle. If the diameter of the plunger is 1.14 cm and that of the needle 0.215 mm, with what force does the fluid leave the needle?
The drinking fountain outside your classroom shoots water about 16.6 cm up in the air from a nozzle of diameter 0.594 cm. The pump at the base of the unit (1.20 m below the nozzle) pushes water into a 1.20 cm diameter supply pipe that goes up to the nozzle. What gauge pressure does the pump have to provide? Ignore the viscosity;
? Tom is chasing Jerry across a table 1.5 m high, Jerry steps out of the way at the last second, and tom slides off the edge of the table at a speed of 5 m/s. where will tom strike the floor and what velocity components will he have just before he hits the ground. ? Two objects are initially the same height above the groun