Answer:
The threshold frequency is defined as the minimum frequency of the incident radiation below which photoelectric emission or emission of electrons is not possible. The threshold frequency refers to the frequency of light that will cause an electron to dislodge emit from the surface of the metal.
Which of the following objects would have the greatest: A. momentum if they were all moving with the same velocity? B. Inertia?
A compact car B school bus
C Pick-up truck D road bicycle
Select all the correct answers.
A worker is holding a filled gas cylinder still. Which two sentences are true about the energy of the filled gas cylinder?
it has no energy because it's being held still.
It has gravitational potential energy because of its height
Its atoms and molecules have thermal energy.
0 It has motion energy because it will fall if let go.
its kinetic energy is being converted to potential energy.
Answer:
It has gravitational energy because of its height above some reference point.
It also contains thermal energy due to the motion of the contained atoms and molecules.
Answer:
b and c :)
Explanation:
Calculate the power developed by a 68.0 kg athlete who, in 20.0 seconds. runs up stairs that have a vertical height of 8.00 m
Potential energy:-
mgh68(8)(10)680(8)5440JNow
time=t=20sSo
Power:-
PE/t5440/20272WYear
Carbon Dioxide (CO2) in Atmosphere (ppm*)
2010
2011
Copyright © Enginuity Inc.
Copyright © Enginuity Inc.
Global Temperature Change – Student Guide
2012
2013
2014
2015
2016
2017
Answer:
Theres a diagram missing for Q
Explanation:
What is all this?
Could you add a question so I can answer it :)
a cup of coffee has a mass of .297 kg if you place this cup of coffee on a desk and let it sit there undisturbed how much force is the desk exerting on it
The desk is exerting a normal force of approximately 2.913 Newtons on the cup of coffee, which is also equal to 2.913 N in magnitude.
The force that the desk exerts on the cup of coffee is known as the normal force. This force counteracts the weight of the coffee cup due to gravity. The normal force is equal in magnitude and opposite in direction to the force exerted by the cup's weight.
The weight of an object is given by the equation:
Weight = mass × acceleration due to gravity
Where:
Mass = 0.297 kg (mass of the coffee cup)
Acceleration due to gravity (on the surface of the Earth) ≈ 9.81 m/s²
Weight = 0.297 kg × 9.81 m/s² ≈ 2.913 kg m/s² (Newtons)
To know more about force
https://brainly.com/question/28999910
#SPJ2
What is the wavelength of the wave pictured above?
Answer:
its counting by 4 the multi 4,8,12,16
How Does a Broken Bone Heal? Interactivity. Please i need the answer soon.
Answer:
The body develops a blood clot over the fractured bone in the first few days of a fracture to protect it and deliver the requisite cells for healing. Then, around the fractured bone, a field of healing tissue grows. This is referred to as a callus.
Explanation:
Answer:
Bone heals by making cartilage to temporarily plug the hole created by the break. This is then replaced by new bone. Many people think of bones as being solid, rigid, and structural. Bone is, of course, key to keeping our bodies upright, but it is also a highly dynamic and active organ
Explanation:
A physicist would not be consulted on the design for which of the following?
O
A. Golf balls
B. Curtains
C. Aircraft
D. Solar panels
A physicist would not be consulted on the design for Curtains because there is no scientific laws are used in the making of Curtains.
What is physicist?A physicist is a scientist who specializes in the field of physics. It studies the interactions of matter and energy in the physical universe.
So we can conclude that a physicist would not be consulted on the design for Curtains because there is no scientific laws are used in the making of Curtains.
Learn more about design here: https://brainly.com/question/2604531
__________________ 1. Adobe Photoshop is the current market leader for commercial bitmap and image. __________________ 2. The image is the space provided for your picture. __________________ 3. The drawing tools allow you to modify the image with different tools and achieve the desired effect of your image. __________________ 4. In Photoshop, images are pixel-based. __________________ 5. Create a new layer by clicking on the Create New Layer icon. A new layer will be created below the active layer.
Answer:
Cheswick and apples cheessticks
Which graphs show the correct relationship between kinetic energy and mass?
ОА
у
kinetic energy
mass
ОВ.
yt
kinetic energy
X
mass
rights reserved.
Option "C" is your answer!
The kinetic energy of the object depends on its mass and velocity
The graph of the straight line shown in option C is the correct representation of the relationship between mass and KE of the object.
What is kinetic energy?
The kinetic energy of an object is the energy that an object or a particle has by reason of its motion. Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass.
The kinetic energy of an object is given by the expression.
[tex]KE = \frac{1}{2} {mv}^{2} [/tex]
Where KE is the kinetic energy, m is the mass and v is the velocity of the object.
The above expression of the kinetic energy shows that it is directly proportional to the mass of the object.
KE x m
If we show this relation of mass and KE on a graph, then it would be a straight line showing the direct proportionality between mass and KE of the object.
Hence we can conclude that the graph of the straight line shown in option C is the correct representation of the relationship between mass and KE of the object.
why do fennec fox have big ears? explain why in big detail!
Answer:
Explanation:
The fennec may be the world's smallest fox, but it sports outlandishly large ears! In fact, relative to body size, it has the largest ears of any member of the canid family. It uses those big ears to listen for sounds of prey in the sand. The ears also help dispel body heat to keep the fox cool.
Loosing weight without diet require moving to the top of a mountain explain using weight and gravitational force
Answer:
You would weigh very slightly more at sea level than at the top of a mountain, not enough for you to notice, but a measurable amount. Weight, which really means gravitational force, is proportional to the product of the masses of two objects acting on each other, in this case the giant earth and the minuscule you.
Explanation:
4. The period of the sound wave produced by a 440 Hz tuning fork is
Answer:
.002273 seconds
Explanation:
1/f = period
1/ 440 c/s = .002273 seconds
How does the scintillation detector work?
Answer:
In scintillation detectors the material of the detector is excited to luminescence (emission of visible or near-visible light photons) by the absorbed photons or particles. The number of photons produced is proportional to the energy of the absorbed primary photon. The light pulses are collected by a photo- cathode.
Explanation:
Hope this helps :-)
Enjoy your day or night!
Have fun with your studies and assignments
ps. please don't give full credit to me I used references from other sites
<3 simplysun
Question 5 of 25
Which of the following statements are true of thermal energy and kinetic
energy?
Check all that apply.
A. Kinetic energy is the energy of motion of each molecule or atom.
B. Thermal energy is the energy of motion of all the molecules or
atoms.
C. Kinetic energy is the energy of motion of all the molecules or
atoms.
D. Thermal energy is the energy of motion of each molécule or atom.
SUBMIT
PREVIOUS
Answer:
i think B is the answer of the question
Answer: The answer is B and A
Explanation: