Answer:
Yes.
Explanation:
Sound waves travel through metal 17 times faster than air.
A 10 kg box initially at rest is pulled with a 50 N horizontal force for 4 m across a level surface. The
force of friction acting on the box is a constant 20 N. What type of energy does the box have after it
is done being pulled?
A. Elastic
B. Gravitational
C. Chemical
D. Kinetic
Each planet has several properties for which scientists colleci Uald. Angle of Axis Tilt Planet Orbital Length Speed of Day (km/s) (hours) Mass (kg) 30 24 Earth 23.4° 6.0 x 1024 Saturn 26.7° 11 5.7 x 1026 10 Another characteristic of Saturn is that it has a much thicker atmosphere than Earth. Based on is most responsible for this difference? O A. their different orbital speeds O B. their difference in length of day O C. their different axis angles of tilt O D. their difference in mass Reset Next Question
Answer:
so basically
Explanation:
ty for the free points tho ez ez ez ez jajjajajajajajjajaj ez ez ez free cash dog water
Can anyone please help me solve these?
I need help with my science.
Answer:
1: 2
2: 5
Explanation:
hope this helps <3
simplify and leave your answer with positive index
2^n-4×16^1+n
/
8^-n×4^-4n
Answer:
2¹⁶ⁿ
Explanation:
2ⁿ¯⁴ × 16¹⁺ⁿ / 8¯ⁿ × 4¯⁴ⁿ
The above expression can be simplified as follow:
2ⁿ¯⁴ × 16¹⁺ⁿ / 8¯ⁿ × 4¯⁴ⁿ
Recall:
16 = 2⁴
8 = 2³
4 = 2²
Thus,
2ⁿ¯⁴ × 16¹⁺ⁿ / 8¯ⁿ × 4¯⁴ⁿ
= 2ⁿ¯⁴ × 2⁴⁽¹⁺ⁿ⁾ / 2³⁽¯ⁿ⁾ × 2²⁽¯⁴ⁿ⁾
= 2ⁿ¯⁴ × 2⁴⁺⁴ⁿ / 2¯³ⁿ × 2¯⁸ⁿ
Recall:
Mᵃ × Mᵇ = Mᵃ⁺ᵇ
2ⁿ¯⁴ × 2⁴⁺⁴ⁿ / 2¯³ⁿ × 2¯⁸ⁿ
= 2⁽ⁿ¯⁴⁾⁺⁽⁴⁺⁴ⁿ⁾ / 2¯³ⁿ⁺⁽¯⁸ⁿ⁾
= 2ⁿ¯⁴⁺⁴⁺⁴ⁿ/ 2¯³ⁿ¯⁸ⁿ
= 2⁵ⁿ / 2¯¹¹ⁿ
Recall:
Mᵃ / Mᵇ = Mᵃ¯ᵇ
2⁵ⁿ / 2¯¹¹ⁿ = 2⁵ⁿ¯⁽¯¹¹ⁿ⁾
2⁵ⁿ / 2¯¹¹ⁿ = 2⁵ⁿ⁺¹¹ⁿ
2⁵ⁿ / 2¯¹¹ⁿ = 2¹⁶ⁿ
Therefore,
2ⁿ¯⁴ × 16¹⁺ⁿ / 8¯ⁿ × 4¯⁴ⁿ = 2¹⁶ⁿ
PLEASE HELP
TOPIC - CONVECTION
Answer:
At B
Explanation:
If it's placed on place B as soon as the cold water arrived it will have time to heat. Hope this helps and best of luck
a toy car travels from A to B at constant speed 30km/hr and without stopping at B return A at constant speed v. if the average speed of the car is 24km/h then v is
Answer:
Speed BA = 18 km/hr.
Explanation:
Given the following data;
Speed AB = 30km/hr
Speed BA = x km/hr
Average speed = 24 km/hr
To find the value of x;
Average speed = (Speed AB + Speed BA)/2
Substituting into the equation, we have
24 = (30 + x)/2
48 = 30 + x
x = 48 - 30
x = 18 km/hr
What is the weather like in a temperate grassland? (Select all that apply.)
summers are mild to hot
winters are cold
summers are cool
winters are mild
Calculate the momentum of a 1000 kg sports car traveling at 30 m/s.
Answer:
30,000 kgm/s
Explanation:
m = 1000 kg
v = 30 m/s
Plug those values into the equation:
p = mv
p = (1000 kg)(30 m/s)
p = 30,000 kgm/s
The momentum of a 1000 kg sports car traveling at 30 m/s is 30,000 kgm/s.Linear momentum = Mass x Speed.
What is the momentum?The product of an object's mass, m, and its velocity, v, is the vector quantity known as linear momentum. It is represented by the letter "p," which is also used to denote momentum.
Mass of car = 1000 kg
Speed by which car moves = 30 m/s. The momentum of the car =?
Recall that:
Linear momentum = Mass x Speed
= 1000 kg x 30 m/s.
= 30,000 kgm/s
The sum of an object's mass (m) and velocity (v) is known as the object's linear momentum. An equation can be used to explain this relationship. Momentum is defined as the body's mass times its velocity. P = m times v, etc.
Therefore, the momentum of a 1000 kg sports car is 30,000 kgm/s if travels at 30 m/s.
Learn more about momentum, here:
https://brainly.com/question/15350658
#SPJ2
A constant net force of 20 N is applied to a 32kg car, causing it to speed up from 4.0 to 9.0 m/s. How long is the force applied
Answer:
8 seconds
Explanation:
From Newton's second law;
Ft = m(v-u)
F = Force applied
t = time taken
v = final velocity
u = initial velocity
20 * t = 32 (9 - 4)
20t = 32 * 5
t = 32 * 5/ 20
t = 8 seconds
Explain why white light splits up into the different colours when it goes through a prism
Explanation:
beacuse light is mixture of many different colours,each with different frequency
what is Focal Point
help me please
Answer:
The point at which rays or waves meet after reflection or refraction, or the point from which diverging rays or waves appear to proceed is called focal point
Which of the following best describes how the ocean convection cycle impacts different climates?
A by creating different sea levels
B by adding moisture to the atmosphere
C by transferring heat from the tropics to the colder climates
D by transferring plankton and other sea organisms from cold regions to warm regions
I really need help, I’m giving 90 points to whoever answers
Answer:
the answer is c
Explanation:
by transferring heat from the tropics to the colder climates
The statement which best describes how the ocean convection cycle impacts different climates is by transferring heat from the tropics to the colder climates. Thus, the correct option for this question is C.
What is the Ocean convection cycle?The ocean convection cycle may be characterized as a type of methodology through which the mesoscale ocean circulation and large, strong winds mix layers of water at different depths.
During this cycle, when one part of a fluid is heated, the temperature difference causes by transferring heat from the tropics to the colder climates fluid to move in a current or defined direction. As the heated fluid rises, it is replaced by a cooler fluid, which is sometimes referred to as a convection cycle.
Therefore, transferring heat from the tropics to the colder climates is the process that best describes how the ocean convection cycle impacts different climates. Thus, the correct option for this question is C.
To learn more about Ocean convection, refer to the link:
https://brainly.com/question/25154137
#SPJ2
A constant force of 12 N acts for 5 s on a 5 kg object. What is the change in object’s velocity?
Answer:
"solve: given that F -12 N and time 4 seconds and let we have to find out the P.
F = 12 N
t = 4 s
p = ?
F = m×( v - u ) / t
12 = m×v / 4
m×v = 12× 4
p = 48 kg m/s
Linear momentum will be 48 kg m/s.
Explanation:
Please help, I don't get this
A chemical reaction is the only way to an
A: Element
B: Pure Substance
C: Mixture
D: Solution
Answer:
B: Pure Substance
Explanation:
A toy car is placed at 0 on a number line. It moves 9 cm to the left, then 4 cm to the right, and then 6 cm to the lef
What is the total distance the toy car traveled?
Answer:
19 cm
Explanation:
Visible light includes all of the
Answer:Visible light is a small part of the electromagnetic spectrum. The spectrum covers everything from gamma rays, x-rays, visible light, infrared, microwave and radio waves. Each part of the spectrum, including the different colors of visible light, have different wavelengths (the space between each wave).
Explanation:
*will give brainlyest thingy*
Mixtures can be separated by different methods. The method for
separation depends on _____
such as particle size,
shape, color, and magnetic attraction.
-chemical properties
-physical properties
-matter
-mass
Answer:
chemical properties
Explanation:
i don't why I choose that answer....
Plssss I need help——— Balloon A is (A. Negatively, B. Not, C. Positively) charged, and balloon C is (A. Negatively, B. Not, C. Positively) charged. Balloon A approaches balloon C, there’ll be a force of (A. Attraction, B. Repulsion) between them.
Answer:
B. Not
C. Positively
A. Attraction
give two reasons why biomass energy might not be a good alternative Energy source
[tex] \sf{ \huge}{ \colorbox{black}{l \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}[/tex]
as for the production of biomass energy wood is mostly used source and burning of wood for the production of biomass energy can lead to the risk of deforestation in the future and emissions of carbons, pollute the surrounding. Thus this is the reason biomass energy might not be a good alternative energy source.
[tex] \sf{\huge}{\colorbox{black}{I \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}[/tex]
The object of the soccer game is to put the____
into the opponent's
Fill in the blank and I’ll give brainly
Answer:
BALL
Explanation:
what is BALL/ SOCCER BALL
Which of the following statements best describe the frequency of a wave?
A. It tells the height of each wave that passes through a given amount of time
B. It tells the number of wave cycles that passes through a given amount of time.
C. It tells how fast or slow a wave is moving
D. It tells the length of each wave that passes through a given amount of time
Answer:
I believe the answer is B.
explain about ohm's law.
Answer:
Statement:
The electric current passing through a conductor is directly proportional to the potential difference across its ends provided temperature and other physical conditions remain constant.
Explanation:
Current is directly proportional to voltage loss through a resistor. That is, if the current doubles, then so does the voltage. To make a current flow through a resistance there must be a voltage across that resistance. Ohm's Law shows the relationship between the voltage (V), current (I) and resistance (R).
V∝I or I∝V⇒V=IR.
Explanation:
Ohm's law states that the current through a conductor is proportional to the voltage across the conductor. This is true for many materials (including metals) provided the temperature (and other physical factors) remain constant. The constant of proportionality, R,R is the resistance and the unit is the ohm, with symbol \Omega,Ω. The relationship can be written as:
V, equals, I, R.
V=IR
where V,V is the voltage across the conductor and I,I is the current flowing through it. If a component is ohmic (it obeys Ohm's Law), then its resistance must be independent of current and voltage.
a book is sitting on a table. jackie is pushing the book with a force of 9 N to the right. if the force of friction is 4 N to the left, what is the net force?
1. 5 N right
2. 4 N left
3. 5 N left
4. 4 N right
Answer:
1
Explanation:
4+5 =9
5n to the right
A skydiver of mass 65 kg has jumped out of a plane two miles above he surface of the earth. After 50 s, he has reached terminal velocity, meaning he is no longer accelerating. What is the force of the air on the skydiver's body? g = m/s^2. *
Answer:
The force of the air on the skydiver's body is:
[tex]F_{air}=637.7\: N[/tex]
Explanation:
Let's recall that when an object reached terminal velocity, the force of the air acting is equal to the weight of the object, so the net force will be zero, that is why the object falls at a constant speed.
Then we have:
[tex]F_{air}=W=mg[/tex]
where:
m is the mass of the skydiver (65 kg)
g is the gravity acceleration (9.81 m/s²)
Therefore, the force of the air on the skydiver's body is:
[tex]F_{air}=65*9.81=637.7\: N[/tex]
I hope it helps you!
Any element can always be identified by its_____.
Atomic mass
Number of neutrons
Number of protons
Atomic number
Answer:
c
Explanation:
Answer:
Number of protons and atomic number
Explanation:
Please I need help its timed-
Students in a science class observed that when a strip of magnesium (Mg) metal was placed in a test tube containing hydrochloric acid (HCl), the magnesium began to bubble as hydrogen gas and magnesium chloride are formed. Which of the following choices show both the correctly balanced equation and identify the type of reaction?
A.
Mg + 2HCl →2H2 + MgCl2 (single replacement)
B.
Mg + 2HCl →H2 + MgCl2 (single replacement)
C.
Mg + 2HCl →H2 + MgCl2 (synthesis)
D.
2Mg + HCl →H2 + 2MgCl2 (synthesis)
Answer:
c
Explanation:
Can someone help with the problems?
Answer:
utrhh
Explanation:
hrtyrt
Explanation:
the answer is b
the second one is a
Freefalling object starts from rest after falling for six seconds what will be its velocity
Answer:
60m/s
Explanation:
since the object is falling under the influence of gravity, the formula is
v = u +gt
before the fall, the object is at rest then
u = 0m/s
v = 0 + 10×6 because acceleration due to gravity is g which is given as 10m/s2
therefore, v = 60m/s