Answers
Answer:
1 - b
2 - e
3 - d
4 - a
5 - c
Related Questions
The wavelength of a wave is 4 metre & its time period is 2 second. What is speed of the wave?
Answers
Answer: The speed of wave is 2m/s.
Explanation:
The speed of wave equals to the distance/time. So when we divide 4m and 2s, we get that the speed of wave is 2m/s
If the intensity of sound at a point is 4.33 x 10^-7 W/m^2, what is the sound level there? (Unit = dB)
Answers
Answer:
56.4 dB
Explanation:
Threshold of hearing, Ir = 1 * 10^-12
Intensity of sound, I = 4.33 * 10^-7
The sound level, L is calculated thus :
L = 10log(I / Ir)
L = 10log(4.33 * 10^-7 / 10^-12)
L = 10log(4.33 * 10^(-7+12))
L = 10log(4.33 * 10^5)
L = 10 * 5.6364878
L = 56.364878
L = 56.4 dB
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (50pts)
Answers
Explanation:
object D would be the hardest to stop, it has more mass, thus it has a higher momentum than the others, requiring a larger force to stop
Way back in the _____________, there lived a man named Isaac Newton who really loved physics.
Group of answer choices
15th to 16th century
17th to 18th century
20th to 21st century
1st to 2nd century
Answers
Answer:
i can't click the answer bottom but the answer is "17th to 18th century" i hope this helps
Answer all of them an you will get the brain list
Answers
Answer:
4. Force = 178.6 Newton.
5. Acceleration = 2.28 m/s².
6. Force = 178.6 Newton.
Explanation:
4. Given the following data;
Acceleration = 3.8 m/s²
Mass = 47kg
Force = mass * acceleration
Force = 47 * 3.8
Force = 178.6 Newton.
5. Given the following data;
Force = 785N
Mass = 345kg
Acceleration = force/mass
Acceleration = 785/345
Acceleration = 2.28 m/s²
6. Given the following data;
Acceleration = 6m/s²
Force = 32N
Mass =force/acceleration
Mass = 32/6
Mass = 5.33 kilograms
If a sealed syringe is plunged into cold water, in which direction will the syringe piston slide? *
A) No movement will occur
B) in
C) out
D) The direction cannot be predicted.
Answers
Answer:
a
Explanation:
can you help me with my question According to the narrator in Paragraph 3 of "The Celebrated Jumping Frog of Calaveras County," Simon Wheeler's tone throughout his entire tale was A earnest and sincere, B. excited and pressing, C. sad and melancholy,
Hello Dudes!
Pls help me in these 2 easy questions!
a. Define speed.
b. State its SI unit.
c. Write the formula for speed.
Answers
Answer:
speed is distance covered by body at certain or per time.
SI unit m/s
formula:
speed =distance covered/time taken
Can someone explain what is referred by the cross sectional area of a solenoid? Is this the same for an air solenoid vs a solenoid with a solid core vs a solenoid with a hollow core?
Answers
Answer:
the cross section refers to the way in which it is wound, in general to the circle
circle does not depend on what it has inside
Explanation:
A solenoid is a wire wound in general in a circular shape, even when it is not forced, the cross section refers to the way in which it is wound, in general to the circle and is joined to determine the area
A = π r²
This circle does not depend on what it has inside, that is, it is the same section in the air, in a liquid or with a solid inside,
Brainliest if right.
Show your work: A wolf chasing an elk. The wolf has a mass of 100 kg and is running with a velocity of 16 m/s
to the right. What is the wolf's momentum?
The elk has a mass of 180 kg. What does the elk's speed have to be for it to have the same momentum as the
wolf?
Answers
Answer:
Explanation:
wolfs momentum is p=mv
so its 100 x 16 = 1600kg m/s
the elks velocity is 1600 = 180 x V
1600/180 = 8.88 m/s
In order to have an airplane ascend, it needs to have more___
than weight. *
Drag
Weight
Lift
Thrust
Answers
Answer:
drag weight lift thrust
What type of pressure is associated with more dense, sinking air?
A.average
B.low
C.high
Answers
it’s more dense
Earl travels 50m east in 10 minutes and later 100m north in 15 minutes. What is her total displacement?all travels 50 m East in 10-minutes and later 100m not in 15-minutes determine the total displacement recovers
Answers
Answer:
111.8 m
Explanation:
Displacement is the change in position of an object. The SI unit of displacement is the meters. The displacement of an object can be calculated by determining the shortest distance from the starting point to the end point.
Since earl travels 50 m east and then 100 m north, let x represent the displacement. Therefore x is the shortest distance from starting to end. Earl movement forms a right angled triangle with x as the hypotenuse. Hence:
x² = 50² + 100²
x² = 12500
x = 111.8 m
How does inertia relate to forces
Answers
Answer:
Even in space, objects have mass. And if they have mass, they have inertia. That is, an object in space resists changes in its state of motion. A force must be applied to set a stationary object in motion.
If the amount of force from the group on the left was 235 N, what is the amount of force from the group on the right
Answers
Answer:
(F = ma ) Newton's second law states that force is proportional to what is required for an object of constant mass to change its velocity. This is equal to that object's mass multiplied by its acceleration.
I need help with this ?
Answers
Answer:
Frequency
Explanation:
Doesn't say how often he exercises
what does exponential part growth mean?
Answers
Answer:
Exponential growth is a pattern of data that shows greater increases with passing time, creating the curve of an exponential function. The population is growing to the power of 2 each year in this case.
Can someone tell me what all these mean in pe pls I’m confused on what they mean all of them
Answers
how could you weaken the force of gravity between cars and the Earth?
**I WILL MARK BRAINLEST**
Answers
Answer:
The answer you have selected is correct.
Explanation:
Increase radius, force of gravity decreases
What is the charge of electron?
Answers
Answer:
negative I hope u got ur answer mate
A ball is thrown 6m above the ground. Its total energy at that point is 12 J. What is the total energy of the ball at a halfway point of motion
Answers
Answer:
6J
Explanation:6J
Using the potential Energy formula;
Potential Energy = mass * acceleration due to gravity * height
If a ball is thrown 6m above the ground. Its total energy at that point is 12 J
Get the mass of the ball
12 = m * 9.8 * 6
m = 12/58.8
m = 0.204kg
The height of the ball halfway = 6/2 = 3m
Potential energy half way = mgh
Potential energy half way = 0.204 * 9.8 * 3
Potential energy half way = 6J
Brainliest if right.
Show your work: A wolf chasing an elk. The wolf has a mass of 100 kg and is running with a velocity of 16 m/s
to the right. What is the wolf's momentum?
The elk has a mass of 180 kg. What does the elk's speed have to be for it to have the same momentum as the
wolf?
Answers
Answer:
Wolf=1600kg*m/s
Elk= 8.89 m/s
Explanation:
p=mv
p=100*16
p=1600
1600=180*v
v=8.89 m/s
You drop a 5 kg ball from a height of 2 m. Just
before it reaches the ground, how much kinetic
energy does it have?
Answers
Answer:
Kinetic energy = 98 N
Explanation:
Given:
Mass = 5 kg
Height = 2 m
Find:
Kinetic energy
Computation:
K(e) = P(e)
So,
P(e) = mgh
So,
K(e) = (5)(9.8)(2)
Kinetic energy = 98 N
A horse accelerates from rest at 3 m/s2. How long does it take to reach a speed of 12 m/s?
Answers
Answer:
it will take 4.0 seconds
A girl travels 50 m East in 10-minutes and later 100m north in 15 minutes. what is her total displacement?
Answers
= 5radical 5 or around 111.8
Answer:
111.80 meters
Explanation:
Displacement = A^2 + B^2
50^2 + 100^2 = 12 500 (route the answer )
S= 111.80 meters
Ralston had lots of spicy and oily food which triggered heartburn. The doctor prescribed
him Milk of Magnesia.
a. Why did the doctor prescribe milk of magnesia?
b. What is the chemical name of milk of magnesia?
Answers
Answer:
A.) The doctor decided to prescribe milk of magnesia because of the mineral Magnesium. Magnesium helps to reduce stomach acid and increases the water in the intestines which helps induce motility in the intestines. Heartburn is caused by stomach acids traveling up into your esophagus which causes that feeling of your heart burning. Milk of magnesia will help soothe this.
B.) The chemical name of milk of magnesia is magnesium hydroxide.
Explanation:
The chemical name of the milk of magnesia is magnesium hydroxide.
An antacid is any substance that is taken to decrease or neutralize the acidity of the gastro intestinal tract. We must note that the gastrointestinal tract is natural acidic.
However, hyperacidity of the gastrointestinal tract could lead to heartburn. This acidity is neutralized using an antacid such as milk of magnesia. The chemical name of the milk of magnesia is magnesium hydroxide.
Learn more about antacid: https://brainly.com/question/1301963
A 12.0 cm object is 9.0 cm from a convex mirror that has a focal length of -4.5 cm. What is the distance of the image from the mirror?
Answers
Answer: -3cm
Explanation:
Answer:
-3
Explanation:
edg
- What is the net force of 150 N → and ← 275 N?
Answers
Answer:
Net force = 125N
Explanation:
Let the two forces be A and B respectively.
Given the following data;
Forward force, A = 150N
Backward force, B = 275N
To find the net force;
Since the two forces are acting in opposite directions, we would subtract them to get the net force.
Net force = B - A
Net force = 275 - 150
Net force = 125N
A 1.0 kg toy car is released at the top of a frictionless track on the left and rolls off of the track from its right
side ramp. The car starts at a height of 0.80 m, goes through a 0.50 m diameter loop, and exits the ramp at a
height of 0.25 m.
Answers
Answer: -5.4
Explanation:
Khan said so
Answer:
2.5 J
Explanation:
What is the change in the car gravitational potential energy from A-B
10. What is the acceleration due to gravity at a location
where a 15.0-kilogram mass weighs 45.0 newtons?
1) 675 m/s2
2) 9.81 m/s2
3) 3.00 m/s2
4) 0.333 m/s2
Answers
How would the particles be arranged in an object that has a high density? What about in
an object that has a low density?
Answers
The particles in gases are very far apart, so gases have a very low density.
Answer:
Explanation:
The particles in solids are very close together. They are tightly packed, giving solids high densities.
The particles in gases are very far apart, so gases have a very low density.