the answer is C. according to the method of their information
The slow, steady downhill flow of loose, weathered Earth materials is called A. flow. B. slide. C. creep. D. slump.
A 50 kg astronaut ejects 100 g of gas from his propulsion pistol at a velocity of 50 m/s.what is his resulting velocity
Final answer:
Applying the conservation of momentum, the 50 kg astronaut ejecting 100 g of gas at 50 m/s in space will have a resulting velocity of 0.1 m/s in the opposite direction.
Explanation:
To calculate the resulting velocity of the 50 kg astronaut after ejecting 100 g of gas at a velocity of 50 m/s, we apply the principle of conservation of momentum, assuming a frictionless environment such as space. Before ejection, the astronaut and the gas are stationary, so their combined momentum is 0 kg*m/s. After the ejection, the momentum remains 0 kg*m/s, which means that the momentum gained by the astronaut is equal and opposite to the momentum of the ejected gas.
The mass of the ejected gas is 0.1 kg (100 g) and its velocity is 50 m/s, giving it a momentum of 0.1 kg * 50 m/s = 5 kg*m/s. To find the astronaut's velocity (v_astronaut), we use the equation:
Momentum of astronaut = - (Momentum of gas)
50 kg * v_astronaut = - (0.1 kg * 50 m/s)
This simplifies to:
v_astronaut = - (0.1 kg * 50 m/s) / 50 kg
Calculating this gives:
v_astronaut = - (5 kg*m/s) / 50 kg
So, v_astronaut = -0.1 m/s. The negative sign indicates the direction opposite to the ejected gas.
Therefore, the astronaut's resulting velocity is 0.1 m/s in the direction opposite to the direction of the ejected gas.
How much work does the electric field do in moving a proton from a point with a potential of +155 v to a point where it is -65 v ? express your answer in joules?
The electric field does -3.52 times 10⁻¹⁷ joules of work in moving a proton from a potential of +155 V to -65 V.
To calculate the work done by the electric field in moving a proton from a point with a potential of +155 V to a point with a potential of -65 V, you need to use the following formula:
Work (W) = q times triangle V, where q is the charge of the proton and triangle V is the change in electric potential (voltage).
The charge of a proton (q) is 1.60 times 10⁻¹⁹ C. The change in electric potential (triangle V) is the final potential minus the initial potential, which is (-65 V) - (+155 V) = -220 V.
So the work done by the electric field is:
W = (1.60 times 10⁻¹⁹ C) times (-220 V) = -3.52 times 10⁻¹⁷ J.
The negative sign indicates that the work is done by the electric field, not by an external force.
A solid object has a mass of 30 grams and a volume of 10cm3 what is the density of the object?
Which two stimuli did John B. Watson associate in his infamous “Little Albert” experiment? A. a white lab rat and the boy’s mother B. fear and a loud noise C. a white lab rat and a loud noise D. fear and the boy’s mother
Answer:
C) a white lab rat and a loud noise
Explanation:
egde 2020
Which feature of the sun extends into the corona but is anchored in the photosphere? Core Prominence Solar flare Sunspot
The answer is solar flare. Solar flares are commonly accompanied by coronal mass ejection. Solar flares are periods when the sun is suddenly brighter at a spot at its surface. This is due to the ejection of electrons, ions, and atoms (plasma clouds) accompanied by electromagnetic waves.
Answer: Solar flare
Explanation:
The heating curve of an ice-water mixture that is slowly heated to 125??C contains three sloped and two level portions. What do the two level portions in the graph represent?
A) heating
B) deposition
C) sublimation
D) phase changes
What color band markings would be seen on a 2.2 k resistor? A. Black, black, orange B. Orange, red, red C. Red, red, orange D. Red, red, red
Monochromatic light with a wavelength of 384 nm passes through a single slit and falls on a screen 86 cm away. If the distance of the first-order dark band is 0.22 cm from the center of the pattern, what is the width of the slit?
Answer in units of cm.
Which statement about conduction is true?
1. Conduction uses electromagnetic waves.
2. Conduction transfers energy from one particle to another
3. Conduction from a fireplace can heat an entire room.
TEST HELP PLEASE!! WILL GIVE MEDAL TO BEST ANSWER!!
1 When the air under the envelope is heated, the balloon lifts. Which of the following statements is true.
a. Hot air balloons use radiation to rise
b. Hot air balloons use conduction to rise
c. hot air balloons use convection to rise
d. hot air balloons use air resistance to rise
Is the answer answer C?,
Example of figurative language the toast jumped out of the toaster. What effect of the argument can go with the example of figurative language
The example of figurative language in the phrase "the toast jumped out of the toaster" is a metaphor. Using figurative language in an argument can make it more engaging and persuasive.
Explanation:The example of figurative language in the phrase "the toast jumped out of the toaster" is a metaphor. A metaphor is a figure of speech that compares two different things by saying one thing is another thing, without using the words "like" or "as". In this case, the toast is compared to something that jumps, which creates a vivid image and adds interest to the description.
The effect of using this metaphor in an argument could be to make the argument more engaging and memorable. By using figurative language, the writer or speaker can convey their message in a more creative and impactful way, capturing the attention of the audience and making the argument more persuasive.
Materials having resistance changes as voltage or current varies are called:
Which of the following correctly lists the planets in the Solar System from the smallest to the largest in terms of diameter?
A. Mars, Mercury, Venus, Neptune, Uranus, Saturn, Jupiter, Earth
B. Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter
C. Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, Mercury
D. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Answer:
The answer in B
Explanation:
I did the test and doubled check with my teachers.
A girl attaches the end of her jump rope to the trunk of a tree. What evidence exists that the rope is a transverse wave?
Final answer:
The motion of moving the jump rope up and down creates transverse waves where the rope moves perpendicular to the direction of wave propagation. When waves from opposite ends meet, they interfere and superpose, forming various resulting wave patterns.
Explanation:
When a girl attaches the end of her jump rope to the trunk of a tree, evidence that the rope can support a transverse wave is observed by moving the free end of the rope up and down. This motion would cause the rope to move perpendicular to the direction of the wave's travel, which characterizes a transverse wave.
If there were two transverse waves created from opposite ends, with one wave traveling towards the other, one would anticipate seeing a superposition of the two waves when they meet. This interaction, where two waves overlap and combine, is an example of wave interference. The resultant wave pattern can vary depending on the relative phases and amplitudes of the interacting waves, illustrating concepts such as constructive or destructive interference.
The source of the magnetic field on the Sun is _____.
a. liquid iron in the core
b. liquid metallic hydrogen in the core
c. flowing plasma
d. thermonuclear reactions
Answer:
C) Flowing plasma
The Earth’s gravitational force that attracts the sun is __________ the sun’s gravitational force to attract the Earth?
A. less than
B. equal to
C. greater than
D. centrifugal
E. none of the above
An ambulance siren sounds different as it approaches you than when when it moves away from you. what scientific term would you use to explain how this happens
D
A
A
D
B
D
just took on connections !!!!!
The deepest portion of the lithosphere is formed from
A rocket, weighing 43576 N, has an engine that provides an upward force of 11918 N. It reaches a maximum speed of 713 m/s. For how much time must the engine burn during the launch in order to reach this speed? Call up positive.
Assume that the porsche's maximum speed is 78.0 m/s and the police car's is 58.0 m/s. at the moment both cars reach their maximum speed, what frequency will the porsche driver hear if the frequency of the police car's siren is 440 hz? take the speed of sound in air to be 340 m/s.
According to newton's 2nd law of motion, what is the relationship between mass and acceleration? provide an example to clarify your response.
The relationship between mass and acceleration according to Newton's second law of motion is that acceleration is directly proportional to the net external force and inversely proportional to the mass of the object. So, larger mass leads to smaller acceleration for the same applied force.
Explanation:According to Newton's second law of motion, the acceleration of a system is directly proportional to and in the same direction as the net external force acting on the system, and inversely proportional to its mass. This essentially means that the larger the mass of an object, the smaller its acceleration will be when a net external force is applied, due to the object's increased inertia. For example, if you try to push a car and a bicycle with the same amount of force, the car (which has a greater mass) will accelerate slower than the bicycle (which has less mass).
Learn more about Newton's Second Law of Motion here:https://brainly.com/question/13447525
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The efficiency of a ramp is 75%. if the amount of work input is 240 j, what is the amount of useful work output?
Answer:
180
Explanation:
If the work input equals 240 then we follow the equation for work output.
Work output = (work input x efficiency)/100%
Work output = (240 x 75%)/100%
Work output = 180/100%
Work output = 180
What particles make up a plasma of hydrogen?
A) H+ only
B) H+ and e-
C) e- only
Which planet is most likely to have acid rain? A. Mercury B. Venus C. Mars D. Uranus
if a light ray strikes a flat mirror at an angle of 61 degrees above the mirrors surface, what is the angle of reflection in relation to the normal
Answer:
For any plane reflector, the angle of reflection is always equal to the angle of incidence.
We know that thelight ray at an angle of 61 degrees from above (i assume that those 61° are between the light ray and the surface of the mirror), so the angle with respect to the normal of the mirror will be the complementary angle A = 90° - 61° = 29°
This means that the incidence angle is equal to 29°, then, the reflection angle is also 29°.
Now, if the initial angle is with respect to the normal of the mirror, the reflection angle is equal to it, so the reflection angle is also 61°
A weight lifter holds 100 kg above his head for 5 seconds. What is the work done on the weights?
The type of radiation that humans sense as heat is _____. ultraviolet visible microwave infrared
Which of the following waves have the lowest energy?
Gamma waves
Radio waves
Visible light
X-rays
Answer:
The answer is radio waves
Hope that helps! :)
Wendy makes a graphic organizer to help herself apply Ohm’s law to electric circuits.
Which formulas belong in the regions marked X and Y?
X: I = I1 + I2 + I3
Y: Req = R1 + R2 + R3
X: Req = R1 + R2 + R3
Y: I =
X: I = I1 = I2 = I3
Y: V = V1 + V2 + V3
X: I =
Y: V = V1 = V2 = V3
In a series circuit represented by Ohm's law, the correct formulas to use are I = I1 = I2 = I3 for region X and Req = R1 + R2 + R3 for region Y, indicating that current remains constant through components and resistances are additive.
Explanation:Wendy is working with Ohm's law and electric circuits and needs to know which formulas apply to regions marked X and Y in her graphic organizer. Ohm's law describes the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit and is given by V = IR. When multiple resistors are present in a circuit, their total or equivalent resistance (Req) and the total current depend on whether they are arranged in series or parallel.
In a series circuit, the total current (I) remains the same through all the components, and the voltages across each component add up. Hence, I = I1 = I2 = I3 which would be the correct formula for region X. For region Y, in a series circuit, the equivalent resistance (Req) is simply the sum of all individual resistances, thus Req = R1 + R2 + R3 is the correct formula.
However, in a parallel circuit, the voltage across all components is the same and the currents through each component add up to the total current, which is represented by I = I1 + I2 + I3, but this does not apply to the original question.