The bolt's acceleration relative to the train car is 0 m/s², and relative to the Earth, it has a horizontal component of 2.50 m/s² and a vertical component of 9.81 m/s².
Explanation:The student is asking a physics question related to relative acceleration. (a) The acceleration of the bolt relative to the train car is 0 m/s² since it was initially at rest with respect to the train car before dropping. (b) The acceleration of the bolt relative to the Earth combines the acceleration due to gravity and the acceleration of the train. This results in a compound acceleration where the horizontal component is 2.50 m/s² (train's acceleration) and the vertical component is 9.81 m/s² (gravity's acceleration).
which of these is not a consequence of hydrogen bubbles covering the upper plate of a primary cell?
a: increase in the resistance of the cell
b: polarization
c: local action
d: generation of less current by the cell
Question: For an 80-N squeeze on the handle of the pliers, determine the force F applied to the round rod b... For an 80-N squeeze on the handle of the pliers, determine the force F applied to the round rod by each jaw. In addition, calculate the force supported by the pin at A.
The acceleration of an object would increase if there was an increase in the
What two roles do forensic engineers play?
Accident reconstructions and failure evaluations of vehicles and structures are the two roles that performed by forensic engineers.
What is forensic engineering?When reconstructing crimes and accidents and figuring out their causes, forensic engineering makes use of ideas from mechanical, chemical, civil, and electrical engineering. Reconstruction of auto accidents is a significant part of that effort. Forensic engineers analyze information from skid marks, damage to cars and their locations after collisions, road and environmental conditions, injuries to drivers, passengers, and pedestrians, and witness testimony to assess what might have caused the accident.
Accident reconstructions and failure evaluations of vehicles and structures are performed by forensic engineers. In order to comprehend the physical dynamics of the 1995 Oklahoma City bombing and to provide an explanation for the fall of the World Trade Center's twin towers during the September 11 attacks in 2001, forensic engineering was crucial. Police investigations into auto accidents can benefit from forensic engineering.
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A 6000 kg train car traveling at 2.5 m/s collides with another 6000 kg train car now they are both moving but with a speed of 1.25m/s. this an exaple of?
Newton's secind law
Newton's third law
Newton's first law
The law of conservation of momentum
Help would be greatly appreciated!
what happens when velocity and acceleration are not in the same direction?
Acceleration is the rate at which velocity changes, which means that acceleration tells you how fast the velocity is changing. A large acceleration tells you that the velocity is changing quickly - a small acceleration tells you that the velocity is changing slowly - an acceleration of zero tells you that the velocity is not changing at all.
Acceleration tells you how the velocity changes - it doesn't tell how how much the velocity is! An object can have a large velocity and a small (or zero) acceleration - and vice versa.
The value of acceleration due to gravity (g) on Pluto is about 0.61 meters/second2. How much will an object that weighs 250 newtons on Earth weigh on Pluto? Note that the value of acceleration due to gravity on Earth is 9.8 meters/second2?
A.3.5 newtons
B.15.6 newtons
C.18.2 newtons
D.59.78 newtons
Answer:
The answer to this question is B: 15.6 newtons
Explanation:
What is the speed, in m/s, of a wave on a cord if it has a wavelength of 4m and a period of 0.5 s
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A platinum bar measures 5.0 cm long, 4.0 cm wide, and 1.5 cm thick. It has a mass of 750.0 grams. Don't forget to find the volume of the bar (L X W X H). Use the formula D=m/v Calculate the density of the platinum bar (you need the volume first). Enter your answer in the space provided.
The density of the platinum bar is found by first calculating the volume (5.0 cm*4.0 cm*1.5 cm = 30.0 cm^3). Then, using the formula D=m/v, we divide the mass (750.0 grams) by the volume to find the density, which is 25.0 g/cm^3.
Explanation:The density of a material is calculated by using the formula: D=m/v, where 'D' is the density, 'm' is the mass, and 'v' is the volume. In this case, we need to find the volume of the platinum bar first. The volume is determined by multiplying length, width, and height. Thus, you multiply 5.0 cm by 4.0 cm by 1.5 cm, which equals 30.0 cm^3.
Once you have the volume, you can determine the density of the platinum. The mass given is 750.0 grams. Therefore, density (D) is mass divided by volume. When you divide 750.0g by 30.0 cm^3, the calculated density becomes 25.0 g/cm^3.
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What is the best example of rotational motion
How does gamma radiation differ from alpha or beta particle radiation?
A.) it does not consist of matter
B.) it does not consist of energy
C.) it only consists of space
D.) it only consists of matter
i think it is A-it does not consist of matter
What speed is a car going if it takes 2 hours to go 80 miles?
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Which term describes the process of water moving from plant leaves to the atmosphere?
Air pressure
Humidity
Transpiration
Density
A circuit can be defined as _____________.
A .Something that doesn’t allow electricity to travel through it easily
B. A place that electricity likes to hang out
C. A closed path through which electrical charges can flow
D. Something that allows electricity to travel through it easily
A current will not be induced because the wire is not part of a closed circuit.
In your own words, explain how Doppler radar works. Describe the properties of electromagnetic waves and interactions that make Doppler radar possible. (13 points)
If you stand up in a big room and echo, your voice will echo from the walls. As long as the room is empty. Since the speed of sound is constant, depending on air density, the more humid the air the faster and farther sound travels. The speed of sound is constant, you could measure the time it takes for your voice to echo off the walls. The same thing happens with Doppler radar, but it’s not voice, it has higher frequency signals.
Doppler Radar uses Doppler Effect as a principle to measure velocities, detect the presence of objects, identify meteorological phenomena and their intensity levels. This radar emits a continuous radio signal that allows the radar to differentiate between objects that are stationary and those in motion. This radar can be used, for example, to measure the speed of a particular object and to indicate its location, so that it is widely used in traffic surveillance.
Doppler radar is the most widely used type of weather radar that is currently of utmost importance for atmospheric monitoring. It is also employed for example in agriculture, air traffic and weather forecasting. Information gathered by radar assists meteorologists in early diagnosis of natural disasters.
Doppler effect, used by these radas, is a physical phenomenon observed in waves emitted or reflected by a source. It is perceived, for example, when listening to the sound of an ambulance passing by an observer. As the ambulance approaches, the tone becomes more and more acute, and as it moves away it becomes more serious. What happens is that we perceive a relative frequency, which is not the same frequency as the wave was emitted.
An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6 newtons per kilogram.
a. What is her mass?
b. What is her weight on Earth?
c. What would she weigh on Mars?
Answer:
a) 65 kilogram
b) 637 newton
c) 242 newton
Explanation:
a) 1.6 newton is equivalent to 1 kilogram mass so
104 newton will be equivalent to 104 / 1.6 = 65 kilogram
b) her weight on the earth = mass x gravitational acceleration
= 65 x 9.8 = 637 newton
c) gravitational acceleration on the mars is 3,72 m per second squire so
weight on mars = 65 x 3.72 = 242 approx.
a. Her mass is 65 kg
b. Her weight on Earth is 637 N
c. She would weigh 241 N on Mars
[tex]\texttt{ }[/tex]
Further explanationNewton's gravitational law states that the force of attraction between two objects can be formulated as follows:
[tex]\large {\boxed {F = G \frac{m_1 ~ m_2}{R^2}} }[/tex]
F = Gravitational Force ( Newton )
G = Gravitational Constant ( 6.67 × 10⁻¹¹ Nm² / kg² )
m = Object's Mass ( kg )
R = Distance Between Objects ( m )
Let us now tackle the problem !
[tex]\texttt{ }[/tex]
Given:
weight of astronaut on the moon = w_m = 104 N
strength of gravity on the moon = g_m = 1.6 N/kg
strength of gravity on earth = g_e = 9.8 N/kg
strength of gravity on mars = g = 3.7 N/kg
Asked:
a. mass of astronaut = m = ?
b. weight of astronaut on Earth = w_e = ?
c. weight of astronaut on Mars = w = ?
Solution:
Part (a):[tex]w_m = m g_m[/tex]
[tex]104 = m \times 1.6[/tex]
[tex]m = 104 \div 1.6[/tex]
[tex]\boxed{m = 65 \texttt{ kg}}[/tex]
[tex]\texttt{ }[/tex]
Part (b):[tex]w_e = m g_e[/tex]
[tex]w_e = 65 \times 9.8[/tex]
[tex]\boxed{w_e = 637 \texttt{ N}}[/tex]
[tex]\texttt{ }[/tex]
Part (c):[tex]w = m g[/tex]
[tex]w = 65 \times 3.7[/tex]
[tex]\boxed{w = 241 \texttt{ N}}[/tex]
[tex]\texttt{ }[/tex]
Learn moreImpacts of Gravity : https://brainly.com/question/5330244Effect of Earth’s Gravity on Objects : https://brainly.com/question/8844454The Acceleration Due To Gravity : https://brainly.com/question/4189441[tex]\texttt{ }[/tex]
Answer detailsGrade: High School
Subject: Physics
Chapter: Gravitational Fields
which of the following is farthest north.
A Byblos
B Israel
C Dead sea
D Tyre
Answer:
Your answer is A. Byblos.
Explanation:
Don't have a good day have a great day.
The element carbon has 3 naturally occurring isotopes. About 99% of carbon isotopes are C-12, about 1% are C-13, and a tiny amount are C-14. What is the average atomic mass of carbon atoms?
A) 11.01 amu
B. 12.01 amu
C. 13.01 amu
D. 14.01 amu
All parts of the electromagnetic spectrum travel at a speed of 3 × 108 m/s when traveling through no medium. A "vacuum” means that there is no medium, such as a tube without any air in it. Therefore, 3 × 108 m/s is said to be the speed of light in a vacuum. If an electromagnetic wave’s frequency doubles in a vacuum, what are the other effects on the wave? Wavelength doubles and speed doubles. Wavelength doubles and speed stays the same. Wavelength divides in half and speed doubles. Wavelength divides in half and speed stays the same
Answer:
the answer is D.
Explanation:
Answer:D. wavelength divides in half, and speed stays the same
Explanation: edge 2023
The wolves and moose of Isle Royale are the focus of the longest-running study of a predator-prey system in the wild. Both are recent arrivals to Isle Royale: moose swam to the island in the early 1900’s. Wolves followed decades later, traveling over the ice from Canada in the 1940’s.About 40 years into the study, the wolf population crashed when humans introduced the canine-parvovirus. Additional factors over the years have impacted both populations. At one point during the study, the moose population collapsed during the most severe winter on record followed by an outbreak of moose ticks. What point on the graph represents the outbreak of moose ticks and a drastic decline in the moose population?
A) Point A
B) Point B
C) Point C
D) Point D
Point C is the answer
Answer:
We have been given two cases of Wolves and moose of Isle Royale
We need to tell the outbreak of moose ticks and a drastic decline in the moose population.
We can see from the graph that A and B are representing Wolves
So, Option A and B are discarded.
Now, we should know the meaning of Outbreak in a graph which means that the large number of people are represented by a single point.
Point C is representing large number of people at one point
So, Outbreak of Moose ticks is represented by Point C.
Now, the drastic decline is the point where the curve started to decrease
At point D the curve is decreasing
Hence, the drastic decline is at the point D.
wich theory focuses on how people are different than animals
Answer:
Humanism.
Explanation:
Humanism is the ethnic and philosophical stance which focus on the values of human beings. It is the defined as the critical thinking and acceptance over the superstition and it is done by individual or group of people.
It is defined as looking the world on the basis of science rather go with the supernaturals.
Therefore, the theory of Humanism focus how people are different than animals.
A neutral atom of helium has 2 protons and ______ electrons. (Enter a whole number.)
You drop an object from a second floor window. Describe the speed of the object after 1 second
if something is being carried by westerlies, what direction is it moving??
What are the two most abundant gases in the atmosphere
Answer:
Nitrogen represents 78% of the atmosphere, oxygen 21%.
Explanation:
The atmosphere is composed of a mixture of many different gases, which are found in different amounts. The permanent gases whose percentages do not change are nitrogen, oxygen, and argon.
Nitrogen represents 78% of the atmosphere, oxygen 21% and argon 0.9%. Other gases such as carbon dioxide, nitrous oxides, methane, and ozone represent a low percentage of the composition in the atmosphere.
Ultimately nitrogen and oxygen account for approximately 99% of the gases in the atmosphere.
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Much of the general structure and physical properties of the interior of the earth are inferred from:
A) deep oil and gas bore holes
B) geologic investigations
C) analysis of seismic waves
D) study of volcanoes
I'm 100% sure its C hope this helps
Answer:
c
Explanation:
if the same amount of energy is added to 5 g of water and to 50 g of water, which sample will have the higher temperature
Which ones are proudest chemicals?