Answer:
p=mv
p=given=24500kg-m/sec
m=?
v=20m/sec
m=p/v
=24500kg-m/sec÷20m/sec
=1225kg=ans
Answer:
1225kg=ans
Explanation:
What cell organelle stores water for plant cells is it a Large Vacuole or small
Answer:
plant cell's vacuole can make up 90% of the cell's volume. The large central vacuole essentially stores water. In animal cells, vacuoles are much smaller
what are conspiracy theories?
Answer:
They are theories which have a really dark twist or meaning behind the whole theory, some conspiracy theories can also lead to a cliffhanger.
A magnet can generate an electric current in a wire if the magnet is close enough to the wire and if the magnet is also
A.)strong
B.)weak.
C.)at rest.
D.)in motion.
Answer:a stro
Explanation:
A magnet can generate an electric current in a wire if the magnet is close enough to the wire and if the magnet is also in motion. The correct answer is D) in motion.
What is electromagnetic induction?When a magnetic field is in motion with respect to a conductor, such as a wire, it induces an electric current in the wire. This is because the changing magnetic field creates a changing electric field around the wire, which causes electrons to flow. The induced electric current is proportional to the rate of change of the magnetic field. This consequence is known as electromagnetic induction.
The strength of the magnetic field does affect the magnitude of the induced electric current, but the magnetic field must be in motion in order to generate an electric current.
A weak magnetic field can still generate an electric current in a wire if it is in motion with respect to the wire.
If a magnetic field is at rest, it will not induce an electric current in a wire. The magnetic field must be in motion in order to generate an electric current.
Thus, the correct answer is D) in motion.
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Earthquake waves are 35m long and arrive at a frequency of 2.0Hz. How fast are they travelling?
Answer:
70 m/s
Explanation:
The frequency of earthquake = 2.0 Hz
The wavelength = 35 m
How fastbthw earthquake is t traveling is given bythw velocity of the wave, velocity of wave is related to frequency and wavelength using the formula :
V = frequency * wavelength
V = 2 * 35
V = 70 m/s
Which example best represents superposition? A. A layered cake B. A pile of toys C. Pens in a jar D. people standing in a group
Answer: I think layered cake.. if I’m wrong sorry
Explanation:
I guessed
During the mature stage of a thunderstorm, air moves
upwards
downwards
towards sea
towards land
Answer: Downwards
Explanation: Upwards is only at the start of a thunderstorm when air moves towards the poles. During the mature stage, air moves down towards the equator.
Electrons move from negative to positive while the voltage flows ________ to _______ .
Answer:
positive to negative.
WILL GIVE BRANLIEST
can you find a magnet with only a north pole? why or why not?
Please help! I will give Brainliest to first correct answer! :)
Answer: C
Explanation:
if its wrong pls tell me so i can correct myself
CAN SOMEONE PLEASE HELP FIGURE THIS OUT PLEASE
7. The diagram shows a mercury manometer used to measure the pressure of gas in a container.
Atmospheric pressure is 76 cm of mercury.
gas
mercury
20cm
12 cm
What is the pressure of the gas?
56 cm of mercury
68 cm of mercury
C
84 cm of mercury
96 cm of mercury
Answer: I didnt understand it sorrryryyyyyyy
Explanation:
what is th resistance force when you walk up an inclined plane?
Explanation:
Friction is a force that offers resistance to movement when one object is in contact with another
Answer:
Friction is a force.
Explanation:
Have a wonderful day.
Energy can be ___ from one storage mechanism to another.
Answer:
Energy can be transferred from one storage mechanism to another.
Which best describes what the observations have in common? They involve nuclear energy. They involve radiant energy. They involve changes in waves. They involve changes in energy.
Answer:
The answer is "They involve changes in energy".
Explanation:
Energy change is quite important in chemicals because nearly all reactions involve activation energy. They will learn and learn how to utilize different types of energy shifts in the steam cycle. A conversation about what drives chemical processes contributes to entropy and natural energy principles. It may shift from the shape of form. For example, chemicals might change to heat. Laser light can turn substances into power. Its energy can be changed into different kinds, but not wasted or produced.
Answer:
D
Explanation:
change in energy please give brainliest (edge 2021)
As distance increases, gravitational force________
Answer:
Decreases
Explanation:
Answer:
Decreases
ExplanatIon:
a _____ has to do with the direction of a force
Answer:
The "solid force"? ... The direction of the force always seems to be coming out of the solid surface. A direction which is perpendicular to the plane of a surface is said to be normal. The force that a solid surface exerts on anything in the normal direction is called the normal force.
Explanation:
i think i hope this helps
A ray of light strikes a plane mirror at an angle of incidence equal to 35°. The angle between
the incident ray and the reflected ray is
A)
70°
B)
0°
C)
55°
D)
35°
Answer:
55 degrees
Explanation:
A ray of light strikes a plane mirror at an angle of incidence. The angle between the incident ray and the reflected ray is 70°. The correct option is A.
What is law of reflection?The law states that angle of incidence of the incident ray is equal to the angle of reflection through a plane surface.
Here, angle of incidence of light on a plane mirror is 35°, then the angle of reflection will also be 35°.
i = r = 35°
Then the angle between the incident ray and the reflected ray will be
i +r = 35 + 35 =70°
Thus, the correct option is A.
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Q. Calculate the annual energy
consumption, in kW-h, of
a hair dryer that is rated
at 1400 W and is used for
7.0 min every day.
(The answer in the textbook is 60 kW•h)
Answer:
60 kWh
Explanation:
The computation of the annual energy consumption in KW-h is shown below:
As we know that
1 kw = 1000 w
So, for 1400 W it would be
= 1,400 ÷ 1,000
= 1.4 kW
Now the number of hours it used in a year
= 7 minutes × 365 days ÷ 60 minutes
= 42.58333 hours
So in one year it used
= 1.4 kW × 42.58333
= 59.61 kWh
= 60 kWh
Put the following objects in order by their
weights with the heaviest first.
A) a glass bottle filled with air at atmo-
spheric pressure:
B) a glass bottle filled with helium at at-
mospheric pressure;
C) an empty glass bottle (vacuum inside).
?? Physics
Answer:
I Think its ABC
Explanation:
No air is the lightest
Helium is lighter than regular air that's why it goes up so then the regular air would be heaviest.
A spring is stretched 0.15 m and the force was 1500 N. What is the spring constant?
The spring constant for a spring is stretched 0.15 m and the force was 1500 N is 10000.
What is spring constant?The spring constant, k, is a measure of the spring's stiffness. It varies depending on the spring and material. The greater the spring constant, the stiffer the spring and more difficult to stretch.
The letter k symbolizes the "spring constant," which is a number that tells us how "stiff" a spring is.
If k is large, it means that more force is required to stretch it a certain length than would be required to stretch a less stiff spring the same length.
We know that,
F = k(x)
Where k is the spring constant.
Here, it is given that:
F = 1500N
x = 0.15m
So,
1500 = k (0.15)
k (0.15) = 1500
k = 1500/0.15
k = 150000/15
k = 10000
Thus, the value of spring constant is 10000.
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The atomic number of an element is also the number of
_________ element.
in an
A. Protons
B. Neutrons
C. Electrons
The time lag between education of a muscle cell and the beginning of contraction is known as the ______
Two neutral objects - object A and object B - are rubbed together. During the process,
electrons are transferred from object A to object B. This would cause object A to acquire
a charge and object B to acquire a charge.
Answer:
I think it is + and + I could be wrong but I hope it helps
heena wants to measure the volume of a ball that is 24 cm across. How should she set up her equation? v = one-third pi 24 squared (12). v = one-third p 12 squared (24). v = four-thirds pi 24 cubed. v = four-thirds pi 12 cubed.
Answer:
v = four-thirds pi 12 cubed.
Explanation:
A ball has a spherical shape. The volume of a spherical shape can be calculated using the following formula:
[tex]V = \frac{4}{3} \pi r^3[/tex]
where,
V = Volume of Ball = ?
d = diameter of the ball = length across the ball = 24 cm
r = radius of ball = d/2 = 24 cm/2 = 12 cm
Therefore,
[tex]V = \frac{4}{3}\pi (12)^3[/tex]
Hence, the correct answer is:
v = four-thirds pi 12 cubed.
I believe the answer is D but wanted to make sure.
Answer:
Yes you are right
Explanation:
hope this helps and I get the Brain thingy whatever it call
find ways you can change the total energy
Answer:
The ways to change the total energy are to either make the hill taller to increase it or make the hill lower to decrease the total energy.
Explanation:
The total mechanical energy of a system is the sum of the total kinetic energy and total potential energy.
Define the term ‘lower fixed point’.
Answer:
The lower fixed point, or ice point, is the temperature of pure melting ice at normal atmospheric pressure. Hopes this helps.
Explanation:
How was our galaxy formed?
Answer:
according to big bang theory our galaxy was formed 13billion years ago and then made the stars and galaxies we see today. ... The universe began as a very hot, small, and dense superforce (the mix of the four fundamental forces), with no stars, atoms, form, or structure (called a "singularity).
I Need Help, Thank you! ^^ <3
How can global warming lead to changes to the Earth’s surface?
a.
Global warming can lead to an increased number of earthquakes, which change the Earth’s surface.
b.
Global warming can lead to glaciers melting, causing flooding to areas and the decrease of glacial land masses.
c.
Global warming leads to a decrease in water levels of coastal wetlands.
d.
Global warming cannot lead to changes to the Earth’s surface.
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Explanation:
But global warming will have additional, far-reaching effects on the planet. Warming modifies rainfall patterns, amplifies coastal erosion, lengthens the growing season in some regions, melts ice caps and glaciers, and alters the ranges of some infectious diseases.
Answer:
I think it is B since Global warming can lead to glaciers melting and cause flooding since the water will get warmer resulting in the ocean rising, which causes flooding
Explanation:
An effect analogous to two-slit interference can occur with sound waves, instead of light. In an open field, two speakers placed 1.19 m apart are powered by the same function generator producing sine waves at 1,163 Hz frequency. Assume that the speed of sound is 340 m/s. A student walks along a line 12.5 m away and parallel to the line from one speaker to the other speakers. She hears an alternating pattern of loud and quiet, due to constructive and destructive interference. What is the distance between the central maximum and the first maximum (loud) position along this line in m
Answer:
3.04 m
Explanation:
The interference by diffraction of waves is noticeable only when the dimension of the opening through which the wave is passing through is comparable to the wavelength of the passing wave.
It is given that :
Distance between two speakers, d = 1.19 m
Speed of sound, v = 340 m/s
The frequency is f = 1163 Hz
Distance the student walk along the line of the speaker, D = 12.5 m
We know the wavelength of the sound produced by the speakers is given by :
[tex]$\lambda=\frac{v}{f}$[/tex]
[tex]$=\frac{340}{1163}$[/tex]
= 0.29 m
Now the distance between the central maximum and the first maximum position is given by :
[tex]$y=\frac{\lambda D}{d}$[/tex]
[tex]$=\frac{0.29 \times 12.5}{1.19}$[/tex]
= 3.04 m