uttamsai13

Quiz Instructions

Refer to each chapter as mentioned in the individual questions. All are multiple choice. The exam is open book, so make sure to verify your answer choices with the text. Good luck!

What are 5 main body parts you have ?

Physics class circular motion

Calculate the energy of a photon of wavelength 3.5 μm .

Calculate the energy, in joules, of a photon of green light having a wavelength of 562nm?

Calculate the energy of a photon having a wavelength in the following ranges.

Please answer part a and c 

Calculate the energy of a photon having a wavelength in the following ranges.

Please answer a and c 

Calculate the energy of a photon having a wavelength in the following ranges.

For light of wavelength 589 nm, calculate the critical angles for the following substances when surrounded by air.

i wrote 40.2 and 40.22 but it is incorrect ...Please help me with this...

For light of wavelength 589 nm, calculate the critical angles for the following substances when surrounded by water.

A 2.25-cm-high object is placed 3.50 cm in front of a concave mirror. If the image is 5.50 cm high and virtual, what is the focal length of the mirror?
 cm

........A convex spherical mirror, whose focal length has a magnitude of 16.6 cm, is to form an image 11.0 cm behind the mirror.

What's the difference between Kinetic and Gravitational Potential Energy?

A 86.4-kg wrecking ball hangs from a uniform, heavy-duty chain of mass 29.6. (a) Find the maximum and minimum tensions in the chain

What would be the mass of an object being pushed if the friction coefficient is .49 and has friction force of 80 lb ?

Which of the following statements is true for an inelasticcollision?

A. Both momentum and kinetic energy are conserved.
B. Momentum is conserved, but kinetic energy is notconserved.
C. Kinetic energy is conserved, but momentum is notconserved.
D. The amount of momentum lost by one object is the same as theamount gained by the other object.
E. The amount of kinetic energy lost by one object is the same asthe amount gained by the other object.

Thank you

Write on the following:

Horsepower

Acre

Barrel

Also write on: 

Renewable and non- renewable energy with 6 examples each

A object is 20 cm in front of a concave mirror, and the image is 5.0 cm in front of the mirror. What is the focal length of the mirror?

The density of gold is 19.3 g/cm³.what is this value in kilograms per cubic meter?

Consider a concave, spherical lens. Discuss the image formation as a function of light source position from a distance far from the lens, to a position close to the lens. Be sure to state what fundamental principle lies behind the functioning of a lens. Draw ray diagrams for the image formation when the source is at one-half the focal length and twice the focal length, determine the image position for each with an optics formula.

Please help! If anything please help with the ray diagram of the source at one-half the focal point.

What is the total force on the bottom of a swimming pool 18.5 by5.8 whose uniform depth is 1.9 ?

F= ? N

How to find the magnitude and direction of the total magnetic field?

What kind of image can a single converging lens not produce?


A real image that is inverted and is smaller with respect to theobject.

A virtual image that is upright and smaller with respect to theobject.

A real image that is inverted and is larger with respect to theobject.

A virtual image that is upright and is larger with respect to theobject.

Two identical cars are traveling at the same speed. One is headingdue east and the other due north. Which statement is true regardingthe kinetic energies and momenta of the cars?
a. they have different KE and different momenta.
b. they have the same KE and the same momenta.
c. they have the same KE but different momenta.
d. they have different KE but the same momenta.

a monorail train starts from rest on a curve of radius 400m and accelerates at the constant rate a. if the maximum total acceleration of the train must not exceed 1.5 /s2, determine a the shortest distance in which train can reach a speed of 72 km/, b the corresponding constant rate of acceleration a.

A truck moving at 35.0 mph collides head on with a car traveling in the opposite direction. The mass of the car is 550 kg, the mass of the truck is 2200 kg. During the collision both vehicles come to a stop in 0.150 s as the front end of both vehicles’ crumples. What was the acceleration of the car? Assume that during the collision the acceleration of each vehicle is constant. Also, assume that frictional force are small compared to the forces compared to the contact forces between the vehicles during the colision.

the direction of acceleration in a circle

What is different about the magnetic poles of a common refrigerator magnet and the common bar magnet?

A 9.0 V battery is connected to a bulb whose resistance is 1.6OHMS. How many
electrons leave the battery per minute? Show all work.

What minimum heat is needed to bring 139 g water at 24°C to theboiling point and completely boil it away?

A 2000kg car is slowed down uniformly from 19.0m/s to 10.00m/s in5.40 s.

a) what average total force acted on the car during thattime?

( i get the answer 3333 N is that correct)

b) how far did the car travel during that time?

( i have no idea how to do that) :(

thanks :)

If you throw an object into the air at 30m/sec, how many sec until it is travelling downward at a rate of 10m/sec?

A hydraulic has two pistons. If a pressure of 55 Pa is applied topiston 1, how much pressure will piston 2 experience as aresult?


Answer :___________________ Pa

Calculate the net charge on a substance consisting of a combination of 7.0x10^13 protons and 4.0x10^13 electrons.

An object is situated to the left of a lens. A ray of light from the object is close to and parallel to the principal axis of the lens. The ray passes through the lens. Which one of the following statements is true?


The ray passes through a focal point of the lens only if the lensis a converging lens.

The ray passes through the lens without changing direction, nomatter whether the lens is converging or diverging.

The ray crosses the principal axis at a distance from the lensequal to twice the focal length, no matter whether the lens isconverging or diverging.

The ray passes through a focal point of the lens only if the lensis a diverging lens.

The ray passes through a focal point of the lens, no matter whether the lens is converging or diverging.