#### All Pages

Assignment Help Physics
##### Reference no: EM13350158

Question1

A dock worker loading crates on a ship finds that a 22 kg crate, at first at rest on a horizontal surface, requires a 69 N horizontal force to set it in motion. Though, after the crate is in motion, a horizontal force of 46 N is required to keep it moving with constant speed.The acceleration of gravity is 9.8 m/s2. Find out the coefficient of static friction between crate and floor and discover coefficient of kinetic friction.

Question2

A friend of yours is loudly singing a single note at 380Hz while racing toward you at 26.2m/s on a day when speed of sound is 339Hz. What frequency do you listen to? What frequency does your friend hear if you suddenly begin singing at 380Hz?

Question3

An FCC film is deposited on (100) plane of a single-crystal FCC substrate. It is determined that an angle between [100] directions in the film and substrate is 63.4°. What are Miller indices of the plane dishonest in the film surface?

### Previous Q& A

#### Question1a robot arm that controls position of the video

question1a robot arm that controls position of the video camera in an automated surveillance system is manipulated by a

#### Question1find out a magnitude and direction of the electric

question1find out a magnitude and direction of the electric field this arrangement of charges produces at point that

#### Question1a guitar string is 90 long and has the mass of 34

question1a guitar string is 90 long and has the mass of 3.4. the distance from a bridge to the support post is and

#### Question1a subway train starting from rest leaves a station

question1a subway train starting from rest leaves a station with a constant acceleration. at the end of 9.34 s it is

#### Question1a woman walks 290 m in the direction 37deg east of

question1a woman walks 290 m in the direction 37deg east of north then 177 m directly east. finda magnitude andb angle

#### Question1on a humid day the electric field of 200times104

question1on a humid day the electric field of 2.00times104 nc is enough to produce sparks about an inch long. assume

#### Question1assume a 67-kg boy and a 44-kg girl use a massless

question1assume a 67-kg boy and a 44-kg girl use a massless rope in a tug-of-war on an icy resistance-free surface. if

#### Question1man pushing a mop across a floor causes it to

question1man pushing a mop across a floor causes it to undergo two displacements. first has the magnitude of 154 cm and

#### Question1a wire has a mass of 100 gcm is positioned on a

question1a wire has a mass of 1.00 gcm is positioned on a horizontal surface with the coefficient of friction of 0.250.

#### Question1at a certain instant of time a toy car is

question1at a certain instant of time a toy car is travelling at a constant speed of v0 to thenbspright while a

### Similar Q& A

#### What is the actual diameter of the red blood cell

A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.76 mm. what is the actual diameter of the red blood cell

#### Explain the induced emf

What is the induced EMF when the south pole end of magnet moves closer to the plane of the coil? When the magnet is stationary what happens to the induced voltage

#### What is the trucks original speed and it''s acceleration

You're carrying a 3.40 m-long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip.

#### Which is the following statements is true

Select all that apply. Which is the following statements is true?

#### Compute the kinetic energy of the alpha particle

The isotope 226 Ra Alpha decays. its measured atomic mass is 226.02541 amu, the daughter nucleus has a mass of 222.01758 amu and helium has atomic mass 4.0026 amu. calculate the kinetic energy of the alpha particle

#### What is the spontaneous emission wavelength

Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the spontaneous emission wavelength

#### What is the magnitude of her average velocity

A woman walks for 4 min directly north with a average velocity of 6 km/h; then she walks eastward at 4 km/h for 10 min. What is the magnitude of her average velocity

#### Determine the acceleration of the earth

The earth orbits the sun in a nearly circular orbit of radius 1.49 x 1011 m. What is the acceleration of the earth

#### Cal;culate the volume of bodily fluid lost per hour

A 60.0-kg runner expends 325 W of power while running a marathon. determine the volume of bodily fluid (assume it is water) lost per hour

#### What is the radius of the circle

Three point charges, -5.2 x 10-9 C, -8.1 x 10-9 C, and +7.7 x 10-9 C, are fixed at different positions on a circle. The total electric potential at the center of the circle is -2300 V

#### Determine the change in mass of the water

1.8 kilograms of water are changed, from ice at 0ËšC into liquid water at 0ËšC determine the change in mass of the water

#### Find maximum kinetic energy that can be stored in flywheel

Energy is to be stored in a flywheel in the shape of a uniform solid disk with a radius of R = 1.30m and a mass of 73.0kg. find the maximum kinetic energy that can be stored in the flywheel