Answer:
So it's clear that Earth's hot iron core isn't what creates the magnetic field around our planet. ... On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet
Explanation:
QUICK PLEASE HELP I’ll GIVE BRAINLIEST
Answer:
The value of the charge is 6 c. Option c.
Explanation:
Electric Field
The electric field is defined as the force per unit charge that would experience a small positive test charge if held at some point in space.
The force F on a charge q at any point in space is equal to the product of the charge and the electric field E at that point .
[tex]F=q\cdot E[/tex]
Since we know the value of the electric field E=6\ N/c and the force F=36 N experienced by a certain charge q, we can solve the above equation for q:
[tex]\displaystyle q=\frac{F}{E}[/tex]
[tex]\displaystyle q=\frac{36\ N}{6\ N/c}[/tex]
q=6 c
The value of the charge is 6 c. Option c.
15% input work is lost due to the friction then what is the efficiency of machine.??
Which process is most responsible for moving heat through the atmosphere?
Answer:
Convection
Explanation:
Heat transfer by movement of heated materials is called convection. Heat that radiates from the ground initiates convection cells in the atmosphere.
What is the velocity of a jaguar that travels at 5.0 km in 2 hours 15 minutes? (use the ladder method of cancelling units)
Answer:
2.22 kilometers/hour
37.04 meters/minute
0.62 meters/second
Explanation:
Not sure which one you are looking for, so here you go. Hope this helps. :)
The seniors at Citrus Hill leave for GRAD NIGHT at Disneyland at 8 p.m. they travel 60.5 miles before the stop in Anaheim. Then they return back to Citrus Hill at 7 a.m. What was the average speed of the bus?
Answer:
76
Explanation:
The speed is 76 miles per hour your welcome!!
A 0.84-kg block sits on a lab table. The block accelerates to the right at a rate of 1.96 m/s/s There is a backwards force of 0.87 N. What is the force pulling the block forward?
Answer:
kkolkkkkkkkkkkkkkkkkkkissxfd
17. At what speed must an object be launched vertically upward for the
object to reach a maximum height of 16 meters above its starting position.
(Do not include units, do not include a sign, use 3 sig figs) *
===============================================
Explanation:
When starting at a height of 0, and initial velocity v, the equation of projectile motion is
y = -4.9x^2 + v*x
Where x is the time in seconds and y is the height at time x.
The vertex (h,k) of this parabola is the highest point. In general the vertex has its x coordinate at h = -b/(2a), so,
h = -b/(2a)
h = -v/(2*(-4.9))
h = v/(9.8)
Plug this into the first equation shown above. Also, plug in y = 16. Solve for v.
So we get the following.
y = -4.9x^2 + v*x
16 = -4.9(v/9.8)^2 + v*(v/9.8)
16 = (-5/98)v^2 + (5/49)v^2
16 = (-5/98)v^2 + (10/98)v^2
16 = (-5/98+10/98)v^2
16 = (5/98)v^2
(5/98)v^2 = 16
v^2 = 16*(98/5)
v^2 = 313.6
v = sqrt(313.6)
v = 17.708754896943
v = 17.7
The starting velocity must be roughly 17.7 meters per second.
4. The loudness of the sound depends on the energy. More energy gives a louder sound. We call the loudness ______________, which is measured in _______________.
Explanation:
I know the second blank is decibels.
Answer:
the loudness of sound is called the sound wave or the volume..and it is measured in devibels(dB)
a boy sleading down a hill accelerates
alt 1.40m/s? If he started from rest, in what
In what distance would he reach a speed.
of 7s?
Answer:
9.8
Explanation:
distance=vt
1.40*7=distance
The amount of oxygen in the reactants in 4 atoms. In the products, the oxygen is distributed to water and gas. Which coefficient would be placed in front of water and oxygen
Answer:
2 for water(H2O)
1 for oxygen (O2)
Explanation:
This question is describing the decomposition of hydrogen peroxide (H2O2). Hydrogen peroxide (H2O2), which is the reactant gets broken down into water (H2O) and oxygen gas (O2). The chemical equation is as follows:
2H2O2 ---> 2H2O + O2
As described in the question, the amount of oxygen in the reactants (H2O2) is 4 atoms. The products are water and oxygen gas. To ensure that the equation is balanced, we have to use coefficients.
- Coefficient 2 has been placed in front of the water molecule to balance the number of hydrogen atoms (4) and oxygen atoms (4).
- The coefficient in front of the Oxygen gas remains 1.
Answer:
d
Explanation:
I took the test on edunuity and checked it got it right
STATION 1 - Shake a large mass vertically and horizontally and describe the difference. What if you were on the space station?
Answer:vertical is harder
Explanation:
Because of gravity
HELP ME PLEASE!!!
Explain impeachment in the process that Congress must follow during impeachment. Use details to support your answer.
Answer:
first a representative sponsor is a bill the bill is then assigned to a committee for study if released by the committee the bill is put on a calendar to be voted on debated or amended if the bill passes by simple
An object is moving to the left. In which direction would a force need to be exerted to make this object stop?
Answer: going right cause both will pull at each other and slow it down
Explanation:
What do digital signals turn sounds into?
analog signals
interference
continuity
zeros and ones
Answer:
zeros and ones
Explanation:
pls brainliest
The digital signals are generally in the form of zeros and ones.
The digital signals turn sounds into zeros and ones.
Digital SignalsAn electronic signal is transmitted as binary code that can be either the presence or absence of current, high and low voltages, or short pulses at a particular frequency. This signal is called a Digital Signal.
Digital signals take value in discrete form only at a given time.
Any digital signal can be converted into an analog signal with the help of a digital to analog converter.
If the sound signal is in the form of a digital signal, then it will turn the sound into the form of zeros and ones.
To know more about the digital signal, follow the link given below.
https://brainly.com/question/16828047.
DESPERATE WILL GIVE BRAILIST
Which types of rocks can become metamorphic rock?
A. clastic sedimentary rock
B. both igneous and sedimentary rock
C. clastic or chemical sedimentary rock
D. both igneous and metamorphic rock
Answer:
i think the answer could be both B. and D. bc any type of rock can become a metamorphic rock with right conditions
Explanation:
A metamorphic rock, on the other hand, began as a rock—either a sedimentary, igneous, or even a different sort of metamorphic rock. Then, due to various conditions within the Earth, the existing rock was changed into a new kind of metamorphic rock.
Answer:
B.) Both Igneous and Sedimentary rock
Explanation:
Since Metamorphic rocks can form from either Igneous or Sedimentary rocks. Since the sedimentary particles from which sedimentary rock is formed can be derived from a metamorphic, igneous, or another sedimentary rock, all three rock types can be melted to form magma.
- A 300 kg box of supplies is dropped from a plane and has a parachute attached, if it accelerates down
at 2m/s? what resistive force does the parachute supply?
Answer:
2340 N
Explanation:
There are two forces on the box. Weight force pulling down and resistive force pushing up.
Sum of forces in the y direction:
∑F = ma
F − mg = ma
F = mg + ma
F = m (g + a)
F = (300 kg) (9.8 m/s² + (-2 m/s²))
F = 2340 N
An increase/decrease in which of the following variables would have the
greatest effect on the period of a simple pendulum?
We have no idea what those "following variables" are. You faded out right at the point where you were supposed to show them to us.
The period of a simple pendulum only depends on its length, and the acceleration of gravity in the place where the pendulum is swinging.
It's really tough to answer the question, because both of these things are in a fraction in the formula for the period . . . the length is the numerator, and the local acceleration of gravity is the denominator. So which one has a greater effect on the period really depends on what those numbers are before anything changes.
argue on this can the speed of light be compared to the exact speed if electricity
Answer:
XD
Explanation:
XV
Most people can throw a baseball farther than a bowling ball, and most people would find it less painful to catch a flying baseball than a bowling ball flying at the same speed as the baseball. Explain these two situations in terms of a) Newton's first law of motion.
Complete question is;
Most people can throw a baseball farther than a bowling ball, and most people would find it less painful to catch a flying baseball than a bowling ball flying at the same speed as the baseball. Explain these two apparent facts in terms of
a.) Newtons first law of motion
b.) Newtons Second law of motion
Answer:
A) Explained below
B) Explained below
Explanation:
A) The statement given is that most people find it less painful catching a flying baseball than a bowling ball flying at the same speed as the baseball.
Newton's first law states that an object at rest will continue at rest or if in motion will continue in constant motion unless an external force acts on it.
This means that the velocity has to be constant and net force is zero.
It therefore means that people will need to apply plenty of force on the bowling ball with a constant velocity in order to maintain net force equal to zero.
B) Newton's second law of motion states that force is equal to the rate of change in momentum.
The given statement in the question is true because of the amount of mass and force needed to be applied.
Now, due to the fact that the bowling ball will require a lot of force to be applied on it, it will be hard for people to throw it easily. Thus, it will be easier for most people to throw the baseball than the bowling ball
is heat the same as thermal energy?
Answer:
To be 100% honest im nkt sure but I'm gonna take a gander. yes i think it is the same
Answer:
Yes heat is the same as thermal energy
Explanation:
Heat is the same thing as thermal because Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy. A whole branch of physics, thermodynamics, deals with how heat is transferred between different systems and how work is done in the process (see the 1ˢᵗ law of thermodynamics).
Which of the following questions could best be answered by the work of warren Washington?
What is the dependent and independent variable of Speed and Distance to brake??
Answer:
For the braking distance function, the speed of the car is the independent variable and is measured along the horizontal axis. The braking distance is the dependent variable and is measured along the vertical axis.
PLEASE HELP ASAP I AM GIVING 30 POINTS PLEASE HELP
A box of mass m is at rest on a horizontal surface. Aconstant force of magnitude FA is applied and
the box moves in the direction shown in the diagram below. There is friction between the box and
the horizontal surface, but the frictional force, Fr, is smaller in magnitude than FA-
Mark me brainliest:)
Dump Tower is 96 stories tall. A small, 0.6-kg object is dropped over the side of the roof of the tower and accelerates toward the ground. Track the object for its entire fall. Each story of this tower is 3.01 meters tall.
What is the accelertion due to gravity of the planet and what is the impact speed of the object you dropped? Note: Time of fall is 12.60s
Answer:
Explanation:
height of one floor = 3.01 m
height of 96 floor h = 96 x 3.01 = 288.96 m
time of fall t = 12.6 s
h = 1/2 g x t²
288.96 = 1/2 x g x 12.6²
g = 3.64 m /s²
v = u + gt
v = 0 + 3.64 x 12 .6
= 45.86 m /s
velocity of impact = 45.86 m /s .
Water is unique in that it exists in all three states on Earth. Which statement best describes what happens to the energy of the particles when water vapor begins to cool?
A. The average potential energy decreases.
B. The average kinetic energy decreases.
C. The average potential energy remains the same.
D. The average kinetic energy remains the same.
Answer:
B - Average Kinetic Energy decreases
Explanation:
As the water vapor cools the molecules becomes less excited. Less excitement means less movement, hence less kinetic energy
What unit is used when calculating acceleration?
430 N is applied to a 250 kg object. What is the acceleration?
Answer:
a= 1.72 m/sec/sec
Explanation:
F=ma , here force is given as 430N and mass as 250 kg so using the formula acceleration can be calculated as follows
∴F=ma
1 N= 1 kg m[tex]s^{-2}[/tex]
[tex]a=\frac{F}{m}[/tex]
[tex]a=\frac{430 kg m/sec/sec}{250 kg}[/tex]
a= 1.72 [tex]ms^{-2}[/tex]
A Penny is dropped and falls freely from the top of the Empire State building 443m high. What information do you know? 1b. How long does it take to hit the ground? 1c. How fast is it moving right before it hits the ground?
Answer:
1b. 9.51 s
1c. 93.18 m/s.
Explanation:
1a. From the question given above, the following data were obtained:
Initial velocity (u) = 0 m/s
Height (h) = 443 m
Acceleration due to gravity (g) = 9.8 m/s²
1b. Determination of the time it takes for the penny to get to the ground.
Height (h) = 443 m
Acceleration due to gravity (g) = 9.8 m/s²
Time (t) =?
h = ½gt²
443 = ½ × 9.8 × t²
443 = 4.9 × t²
Divide both side by 4.9
t² = 443/4.9
Take the square root of both side
t = √(443/4.9)
t = 9.51 s
1c. Determination of the speed of the penny before it hits the ground.
Initial velocity (u) = 0 m/s
Height (h) = 443 m
Acceleration due to gravity (g) = 9.8 m/s²
Final velocity (v) =.?
v² = u² + 2gh
v² = 0² + 2 × 9.8 × 443
v² = 0 + 8682.8
v² = 8682.8
Take the square root of both side
v = √8682.8
v = 93.18 m/s
::
A rope has a density and thickness such that a 3.25-centimeter-long segment of it weighs 61.40 grams. There are 28.3495
grams in an ounce and 2.54 centimeters in an inch. How many ounces would a 19.45 inch length of the same rope weigh?
5.10 oz
b. 11.49 OZ
32.92 oz
53.90 OZ
a
C.
d.
Please select the best answer from the choices provided
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с
D
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Answer:
A 19.45-inch-long segment of the same rope would weigh 32.92 ounces.
Explanation:
You know that:
3.25 cm length of rope weighs 61.40 grams .There are 28.3495 grams in an ounce .There are 2.54 centimeters in an inch.The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.
If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other), knowing the values a, b and c and x being the unknown, we must apply the direct rule of three as follows:
a ⇒ b
c ⇒ x
So [tex]x=\frac{c*b}{a}[/tex]
To find the number of ounces a 19.45-inch length of the same string would weigh, you apply the following rules of three:
If there are 2.54 centimeters in 1 inch, how many centimeters are there in 19.45 inch?[tex]centimeters=\frac{19.45 inch*2.54 centimeters}{1 inch}[/tex]
centimeters=49.403
Now, if 3.25 centimeters long it weighs 61.40 grams, then 49.403 centimeters long, how many grams does it weigh?[tex]grams=\frac{49.403 centimeters*61.40 grams}{3.25 centimeters}[/tex]
grams= 933.34
Finally, if there are 28.3495 grams in 1 ounce, in 933.34 grams how many ounces are there?[tex]ounces=\frac{933.34 grams*1ounce}{28.3495 grams}[/tex]
ounces= 32.92
A 19.45-inch-long segment of the same rope would weigh 32.92 ounces.
Answer:
c
Explanation: