What is the average mass of a person?

70kg

What is the average mass of a commercial plane?

300,000kg

What is the mass of an electron?

9.109 x 10^-31 kg

What is the wavelength of a person moving at 10 m/s?

????

What is the wavelength of a commercial plane moving at 200 m/s?

????

What is the wavelength of a electron moving at 1% of the speed of light?

????

Why don't we see the quantum properties of the commercial plane and person?

????

I am writing a paper on superfluidity for my physics class and was wondering if anyone could give me some ideas of what to write on and how to write a scientific style paper. If you have any sources that could help that would be great.

1) An object's original position is 30 meters at an angle of 150 degrees and final position is 30 meters at 70 degrees. The object traveling at constant speed in a circular arc clockwise and makes the journey in 12 seconds.

a) Find the Displacement vector

b) find the total Distance traveled.

c)find the avg Velocity vector, avg Speed, and instantaneous Speed.

d) find the avg Acceleration vector and instantaneous Acceleration vector. Show that the avg Acceleration vector points towards the center when placed at the midpoint of the arc!

The 1.3 kg physics book in figure is connected by a string to a 250 g coffee cup. The book is given a push up the slope and released with a speed of 3.5 m/s . The coefficients of friction are μs =0.50 and μk =0.20.

Part A) How far does the book slide?

An 84.0 kg spacewalking astronaut pushes off a 640 kg satellite, exerting a 95.0 N force for the 0.600 s it takes him to straighten his arms.

Part B) How far apart are the astronaut and the satellite after 1.00 min ?

What value resistor will discharge a 3.00 μF capacitor to 10.0% of its initial charge in 2.20 ms ?

A sphere of radius 20 cm and a mass of 3 kg rolls down an incline of 14.6o and 14 cm high. a. Calculate its translational and rotational kinetic energy when it reaches the bottom. b. What is the ratio of the translational kinetic energy to the rotational kinetic energy? c. What quantities does this ratio depend on?

A rocket is launched at an angle of 53.0° above the horizontal with an initial speed of 98 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 31.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile.

(a) Find the maximum altitude reached by the rocket.

m (b) Find its total time of flight.

s (c) Find its horizontal range. m

A 3.10-N metal bar, 2.00 m long and having a resistance of 10.0 Ω, rests horizontally on conducting wires connecting it to the circuit shown in the figure (Figure 1) . The bar is in a uniform, horizontal, 1.40-T magnetic field and is not attached to the wires in the circuit.

What is the magnitude of the acceleration of the bar just after the switch S is closed?

You've decided to build a radio to listen to your favourite FM radio station, which broadcasts at 102.9 MHz. For the tuner, you'll be using an RLC circuit, but the only inductor you happen to have on hand has a value of 0.870 μH.

Unfortunately, there's another radio station — which you don't want to listen to — at a nearby frequency of 103.3 MHz. To prevent any interference from this 103.3 MHz radio station, you want the peak current from it to be no more than 0.160% of the peak current from your favourite 102.9 MHz station. What value of resistor should you use in your RLC circuit? (Assume the two stations have the same strength.)

Hint:You'll have to first calculate the value of the capacitor so that the radio tunes to 102.9 MHz.

An ice cube of mass 11.4 g and initial temperature -6.0°C is held in your hand such that the water resulting from the melted ice reaches the temperature of your hand, 36.2°C. In order to accomplish this, how much heat (in kJ) must be absorbed by the ice cube and resulting water? Assume that all the water remains in your hand. Hint: Tables 14.1 and 14.2 in your textbook will be useful here.

photoelectric physics lab

Even though this experiment is mathematically simple, its conceptual significance is immense. Explain how the experiment confirms the quantized nature of photon energy. How is the connection established between wave and particle theories of light? How are we able to see that electrons in atoms exist in discrete energy orbitals?

A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery.

For each statement below, select True or False.

1. With the capacitor connected to the battery, increasing d increases U.

2. After being disconnected from the battery, inserting a dielectric with κ will decrease V.

3. With the capacitor connected to the battery, decreasing d decreases Q.

4. After being disconnected from the battery, inserting a dielectric with κ will increase U.

5. After being disconnected from the battery, inserting a dielectric with κ will decrease C.

6. After being disconnected from the battery, decreasing d increases C.

A 8.0 V potential difference is applied between the ends of a 0.80 mm -diameter, 25 cm -long nichrome wire. What is the current in the wire?

where does the formula v = sqr(2gh) come from (what formula is it a simplification of and how)