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Velocity

Two Physics Problems

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

What is the magnitude of the momentum?

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?

Calculating velocity and pressure of fluids

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?

Calculating acceleration and velocity

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

Velocity of Waves and Sound

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

Waves and Nodes

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?

Projectile Motion and Height

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

Vectors and forces

(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

Physics problems

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

Rotational Motion: Motion on a turn table.

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

Escape Velocity

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

Four problems related to rotational motion are solved.

(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

Fluid Pressure and force.

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?

Drinking fountain

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;

Basic kinematics problems: Speed, collision, displacement, velocity, degrees

? 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

Basic kinematic problems: Speed, velocity, degrees, distance

Please see attached files for full problem descriptions. Problem 4: The pilot of an aircraft wishes to fly due west in a wind blowing at 55 km/h toward the south. If the speed of the aircraft in the absence of wind is 179 km/h, in what direction (in degrees) should the aircraft head? Use the counter-clockwise from east conv

Rotational Motion: Translation and Rotational kinetic energy

(a) Without the wheels, a bicycle frame has a mass of 8.13 kg. Each of the wheels can be roughly modeled as a uniform solid disk with a mass of 0.820 kg and a radius of 0.343 m. Find the kinetic energy of the whole bicycle when it is moving forward at 3.35 m/s. K= J (b) Before the invention of a wheel turning on an axle,

Velocity of Circular Motion

Assuming a perfectly circular orbit, how do you calculate the velocity of an object as it orbits around another object assuming for the rotating object that R=150x 10 to the six power km?

A 400 g air-track glider collides with a spring at one end of the track

I have a problem just like it in my physics book, but the mass is different. In my book it is 600 g and the answer is 0.2 s. See attached file for full problem description with diagram and units. A 400 air-track glider collides with a spring at one end of the track. The figure 1 shows the glider's velocity and the for

Linear and angular velocity.

(See attached file for full problem description with equations) --- A bullet is shot through two cardboard disks attached a distance D apart to a shaft turning with a rotational period T, as shown. (see diagram in attachment) a) Derive a formula for the bullet speed V in terms of D, T, and a measured angle between

Motion in a straight: 6 problems

1. Calculate the average speed of the Earth in its orbit about the sun. (The radius of the orbit is 1.5 x 10^11 meters.) Give this in m/s and in miles/h. Now, what is the average velocity of the earth, averaged over one year's time? 2. Is it possible for speed to be constant while acceleration is not zero? Give an example.