Answer:The awnser would be C!
Explanation:
Hope this helped!
Answer:
C. I will make it a priority.
Explanation:
A coin is dropped from the top of the Tower of Pisa, 53m above the ground. What is the coin's initial velocity?
Answer:
Initial velocity U = 0
Final velocity V = 32.23 m/s
Explanation:
Given that a coin is dropped from the top of the Tower of Pisa, 53m above the ground.
What is the coin's initial velocity ?
Since the coin is dropped from the tower, the initial velocity U will be equal to zero.
Therefore, U = 0
But the final velocity V will be calculated by using the formula
V^2 = U^2 + 2gH
V^2 = 0 + 2 × 9.8 × 53
V^2 = 1038.8
V = sqrt ( 1038.8)
V = 32.23 m/s
A swimming pool is an example of an open system. The pool loses 10,500 J
of its thermal energy to the surrounding air at night, and the surrounding air
adds 2,500 J of thermal energy to the pool in the morning. According to the
law of conservation of energy, what is the total change in energy?
Answer: A a decrease of 8000
Explanation: 10,500 - 2,500= 8000
Answer:
Its A
Explanation: Sure
function of alcohol in alcohol thermometer
Alcohol is increasingly expanding with heat. Having it go up the ladder quicker than a lot of liquids would have done. It has a low freezing point, too. It's easy to dye because of the readability. I 'm sure someone will teach you about the evaporative effects of alcohol, and why they do these things. Though that's why it's used briefly in thermometers.
Answer:
Fahrenheit's first thermometer contained alcohol, which has a lower freezing point than water. ... Glass bulb thermometers work because liquids, such as water, alcohol, or mercury, expand slightly when the temperature rises. If the liquid is trapped in a narrow tube, it has nowhere to go but up. I think this may help you
Paul’s class investigated the effects of friction on the motion of a toy car. Using ramps with different surfaces, students determined the amount of time, in seconds (s), for the toy cars to reach the bottom of each ramp. All variables were controlled except the tested variable (independent variable). Paul's group concluded that toy cars on a sandpaper surface are fastest.
Answer:
C
Explanation:
..
Answer:The conclusion is valid for the data recorded
Explanation:
what test is an aptitude test
An aptitude test is a systematic means of testing a job candidate's abilities to perform specific tasks and react to a range of different situations. The tests each have a standardised method of administration and scoring. The results are quantified and compared with all other test takers.
Answer:
Hi There!
Explanation:
An aptitude test is a systematic means of testing a job candidate’s abilities to perform specific tasks and react to a range of different situations. The tests each have a standardised method of administration and scoring, with the results quantified and compared with all other test takers.
~Your Welcome!
If an object is 413 Kg in mass and 640 M3. What is the density? Will It Float?
Answer:
The density will be 0.65 kg/m3
I think it won't float!! I am not sure though.
Determine the skater's average velocity from t= os to t= 16s. (average velocity is the displacement (final position minus initial position) divided by time elapsed.)
Answer:
v = 0.5 m/s
Explanation:
The attached figure shows Robin's positions wrt time who is rollerskating down a marked side walk.
We need to find the skater's average velocity from t= os to t= 16s.
Average velocity = displacement/time
Displacement = final postion - initial position
Displacement = (8 - 0) m/s
Displacement = 8 m/s
Time, t = (16 - 0) s
So,
[tex]v=\dfrac{(8-0)\ m}{(16-0)\ s}\\\\v=0.5\ m/s[/tex]
So, the skater's average velocity from t= os to t= 16s is 0.5 m/s.
Which action might lead scientists to develop new explanations about the universe?
Answer:
Designing experiments to replicate the conditions in which life may have first evolved on Earth
Explanation:
In 1953, Stanley L. Miller and Harold C. Urey conducted an experiment to prove that life started from inanimate objects. The research was conducted by utilizing proposed chemical substances, mixed together through a scientific design process. The outcome of the research is the predicted atmospheric conditions before the pre-living form started on earth.
Therefore, in this case, the action that might lead scientists to develop new explanations about the universe is "Designing experiments to replicate the conditions in which life may have first evolved on Earth."
A competitive go-cart driver is traveling 32 m/s. He sees a caution flag go up, so he slows at a rate of -1.5 m/s^2 in 10.8 s. What is his final velocity?
Answer:
15.8 m/s
Explanation:
The following data were obtained from the question:
Initial velocity (u) = 32 m/s.
Acceleration (a) = – 1.5 m/s²
Time (t) = 10.8 s.
Final velocity (v) =?
Acceleration is simply defined as the rate of change of velocity with time. Mathematically, it is expressed as:
Acceleration (a) = [final velocity (v) – initial velocity (u)] / time (t)
a = (v – u) /t
With the above formula, we can obtain the final velocity of go-cart driver as follow:
Initial velocity (u) = 32 m/s.
Acceleration (a) = – 1.5 m/s²
Time (t) = 10.8 s.
Final velocity (v) =?
a = (v – u) /t
– 1.5 = (v – 32) / 10.8
Cross multiply
(v – 32) = –1.5 × 10.8
v – 32 = – 16.2
Collect like terms
v = – 16.2 + 32
v = 15.8 m/s
Therefore, the final velocity of go-cart driver is 15.8 m/s.
17. The weight of an object on a given planet can be found by using the formula W = mg, where W is the weight of the object measured in newtons, m is the mass of the object measured in kilograms, and g is the acceleration due to gravity on the planet measured in meters per second squared. An object on Earth has a weight of 150 newtons. If the acceleration on earth is 9.8 m/sec?, on Mercury it is 3.6, on Saturn it is 11.1 and on Jupiter it is 26, on which planet would the same object have an approximate weight of 170 newtons?
Answer:
Saturn
Explanation:
W = mg
150 N = m (9.8 m/s²)
m = 15.3 kg
W = mg
170 N = (15.3 kg) g
g = 11.1 m/s²
The planet is Saturn.
Telling what the weather is an:
-Inference,
-prediction, or
-observation
Answer:
observation
Explanation:
an inference is making an educated guess
a prediction and making a guess about what will happen next
Will the pressure in glass of fruit juice be bigger or smaller than the pressure in water?
Answer:
smaller
Explanation:
Water have more evaporation
hey can anyone help me out in dis pls!
Answer:
D
Explanation:
Answer:it’s a
Explanation:
2.(02.07 MC)
The table below shows data of sprints of animals that traveled 75 meters. At each distance marker, the animals' times were recorded. Which animal moves with non-accelerated motion? (2 points)
Time at Distance Markers
25 meters 50 meters 75 meters
Animal
Animal 1 3 seconds
4.5 seconds 5 seconds
5.25 seconds
Animal 2 4.5 seconds 5 seconds
Animal 3 3.5 seconds 7 seconds
10.5 seconds
Animal 4 5 seconds
10 seconds
13 seconds
O Animal 1
O Animal 2
O Animal 3
O Animal 4
A ball, initially at rest, reaches a speed of 20 m/s at the bottom of the apparatus. If it takes the ball 10 seconds to reach the bottom, what is the ball’s average acceleration?
Answer:
2 m/s²
Explanation:
Given:
v₀ = 0 m/s
v = 20 m/s
t = 10 s
Find: a
a = (v − v₀) / t
a = (20 m/s − 0 m/s) / 10 s
a = 2 m/s²
Late in the paleozoic era the supercontient pangaea formed the climate in the center of pangea was probably ? A.) Extremely cold ,polar climate B.) Hot dry desert climate C.) Wet tropical climate D.) Warm mild climate
Answer:
The answer is (B). hot dry desert climate
Explanation:
1. Why should you use scientific notation when writing big numbers?
Answer:
It helps the answer look clean. It also makes the work easier to work with.
Explanation:
Instead of writing a lot of zeros, all you have to do is add exponents to the number to show how much the decimal moved.
Why do the tall structures fall off the ground so easily?
Answer:
Structures that are tall or skinny are generally less stable, making them more likely to fall when exposed to lateral forces, whereas ones that are shorter or wider (at the base) are generally more steadfast.
Explanation:
what is independent venerable
Explanation:
About Venerable
Venerable is a privately held company with business operations based in West Chester, Pennsylvania and Des Moines, Iowa. Venerable owns and manages the legacy variable annuity business acquired from Voya Financial, Inc. Created by an investor group led by affiliates of Apollo Global Management, LLC, Crestview Partners, and Reverence Capital Partners, Venerable is an emerging business with well-established, strategic investors, experienced in successfully building and growing insurance businesses with patient, long-term capital.
Explanation:
a variable (often denoted by x ) whose variation does not depend on that of another.
A proton and a neutron are each close to a positive nucleus.
How does the charge on the nucleus affect the proton and the neutron, if at all?
A The neutron is attracted; the proton is repelled.
B The neutron is not affected; the proton is repelled.
C The proton is attracted; the neutron is repelled.
D The proton is not affected; the neutron is repelled.
Answer: b
Explanation:Because protons are positive and the nucleus is positive so it will be repelled and the neutron is neutral so it will be unaffected.
How long does it take an object to accelerate from 12 m/s to the right to 32 m/s to
the right with an acceleration of 5 m/s2 to the right?
Answer:
4 seconds
Explanation:
Given:
v₀ = 12 m/s
v = 32 m/s
a = 5 m/s²
Find: t
v = at + v₀
32 m/s = (5 m/s²) t + 12 m/s
t = 4 s
A body weighs 65N.Calculate it's mass.(g=10N/kg)
Explanation:
Hey there!!
Here,
Weighs = 65n
Gravity = 10n
We know that,
weighs = mass × gravity.
65 = m × 10
[tex]m = \frac{65}{10} [/tex]
Therefore the mass is 6.5 kg.
Hope it helps...
why a magnetic compass is used to determine direction
Answer:
compass is an instrument used for navigation and orientation that shows direction relative to the geographic cardinal directions (or points). Usually, a diagram called a compass rose shows the directions north, south, east, and west on the compass face as abbreviated initials.
This works because the Earth itself has a magnetic field which is similar to that of a bar magnet. The compass needle aligns with the Earth's magnetic field direction and points north-south.
Answer:
The other person is right!!!!!! ^^
Hope this helps!!!
Explanation:
Basketball is __________ to the United States
Question 4 options:
Native
Foreign
New
Unknown
Answer:
native
Explanation:
bc it was started when we were playing it with baskets
Can someone help me its A,B,C,D
A scientist has two containers. Inside each container, there is a blue liquid. The liquids are substances. What can the scientist do to help find out whether these two liquids are both the SAME substance? *
you throw a basketball straight up into the air with a speed of 24.5m/s. how long does it take to reach its highest point
Answer:
2.5 seconds.
Explanation:
Time equals speed divided by acceleration. gravitational acceleration is equal to 9.8 [tex]\frac{m}{s^{2} }[/tex]. You know that the speed is equal to 24.5 m/s, so plug those values into the equation.
24.5 / 9.8 = 2.5 seconds.
Hope this helps!
Answer: 2.5 s
Time=speed/acceleration
Gravitational Acceleration=9.8 m/s^2
Speed=24.5 m/s
Time=24.5/9.8=2.5 s
hopes this helps UwU
and if like my answer can you please mark me as brainliest please
thank you
and sorry it took so long i was trying to catch up with my missing assignments
Mrs. Franklin loves teaching science and thinks about it all the time. While walking one day, she steps on a warm, fresh piece of used gum. The gum flattens and sticks to her shoe. When she lifts her foot, she sees long strings of gum between her shoe and the sidewalk. She thinks, “What a great demonstration of the properties of metals!” What properties of metals would Mrs. Franklin most likely teach about with this demonstration?
Answer:
Ductility and Malleability
Explanation:
What is the density of a 200 gram mass whose volume is 300 cm?
Answer:
0.667 grams per cm cubed
Explanation:
the formula for density is mass divided by volume
An advertising balloon shaped like a giant soda can is 15 feet tall and 7 feet wide. How many cubic feet of helium will be needed to fully inflate the balloon?
Answer:
576.975 cubic feet of helium will be needed to fully inflate the balloon
Explanation:
To determine how many cubic feet of helium will be needed to fully inflate the balloon, we will determine the volume of the balloon.
From the question,
The balloon is shaped like a giant soda can.
A giant soda can is cylindrical.
Hence, we can determine the volume of the balloon shaped like a giant soda can by using the formula for finding the volume of a cylinder.
The formula for finding the volume of a cylinder is
V = πr²h
Where V is the volume of the cylinder
π is a constant (Take π = 3.14)
r is the radius of the cylinder
and h is the height of the cylinder
From the question, the balloon is 15 feet tall and 7 feet wide
Hence,
Height, h = 15 feet
Width = 7 feet
(NOTE: The width of a cylinder is the same as the diameter)
Then, diameter = 7 feet
Radius, r is given by
Radius = Diameter / 2
Then, Radius = 7 feet / 2 = 3.5 feet
∴ Radius, r = 3.5 feet
Now, for the volume of the balloon,
V = πr²h
V = 3.14 × (3.5)² × 15
V = 3.14 × 12.25 × 15
V = 576.975 cubic feet
This is the volume of the balloon.
Hence, 576.975 cubic feet of helium will be needed to fully inflate the balloon.