Answer:
They use a non-contact force
Explanation:
The shark applies a contact force on the prey. The shark is unable to apply force at a distance. The shark applies a non-contact force on the prey
Answer:
Non-contact
Explanation:
Because Non-contact beans they are not using friction against there bodies.
An African Bush Elephant can weigh up to 13,000 lbs, how many grams is that?
(Hint - 11b. = .54kg)
Final Answer:
can you see the equator from outer space??
how do i solve?
a = bc
(b)
Rank the four fundamental forces from strongest to weakest
Answer:gravitational, weak nuclear, electromagnetic, strong
Explanation:
12) A 26 kg chunk of ice is slid west across the frictionless surface of a frozen lake at 1.7 m/s . The chunk of ice collides with another chunk of ice, which is stationary and has a mass of 12 kg. The two chunks slide together as a single piece after the collision Calculate the final velocity of the combined ice chunks Show your work including the equation(s), values for the variables, and units
Answer:
1.16 m/s
Explanation:
Mass of first ice; m1 = 26 kg
Mass of second ice; m2 = 12 kg
Velocity of first ice; v1 = 1.7 m/s
Velocity of second ice; v2 = 0 m/s
From inelastic collision, the formula we will use is;
m1•v1 + m2•v2 = (m1 + m2)v'
Where v' is the final velocity of the combined ice chunks
Plugging in the relevant values gives;
(26 × 1.7) + (12 × 0) = (26 + 12)v'
44.2 = 38v'
v' = 44.2/38
v' ≈ 1.16 m/s
Which of the following is NOT a unit of measurement in the metric system?
1.meter
2.second
3.centimeter
4.foot
Answer:
Your answer should be d: Foot
Explanation:
The unit "foot" is part of the english system which includes inches, feet, yards, etc.
True or False: (2 points) If a scientist finds evidence that contradicts a hypothesis, law, or principle, then it is their choice whether to change the hypothesis, law, or principle.
Answer:
True
Explanation:
A hypothesis is an educated guess, it does not have to be right.
Which state of matter has the MOST energy?
Answer:
Gas
Explanation:
The gas state of matter has the most energy because of how freely the molecules move
1. If you move 4 meters north and move 2 meters south what is the distance and the displacement?
2. If you move 2 meters east and move 4 meters west what is the distance and the displacement?
Please help!!It’ll be greatly appreciated
Answer:
distance will be 6diplacement will be 2
2. distance will be 6
displacement will be 2
The distance if we move 4 meters north and 4 meters south is 6 meters whereas, the displacement is 2 m. The same for the movement of 2 meters east and 4 meters west.
What is distance ?Distance is a physical quantity that measures how far we travelled from rest. It is the total length of the ways we moved. Distance is a scalar quantity. Displacement is a vector quantity showing the distance magnitude as well the direction.
If a person moves equal distances in opposite directions, then the displacement will cancel each other as in the case of force and the net displacement is zero.
Here, if move 4 m north and 2 meters south, the total distance is their sum , i.e., 6 meters. But the displacement for the opposite directions cancel in magnitude and the net displacement is 4-2 = 2 meters.
The same is applied for east and west movement. Hence, the distance is 6 m and displacement is 2 m.
Find more on displacement:
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A cubic meter (m³) is ____________a cubic centimeter (cm³).
(A) larger than
(B) different from
(C) smaller than
(D) equal to
Your answer is D: equal to
Answer:
Larger than
Explanation:
cause if you look it up it says ¨1 Cubic meter (m3) is equal to 1000000 cubic centimeters (cm3). To convert cubic meters to cubic centimeters, multiply the cubic meter value by 1000000.¨ which mean you need one million cubic centermeters to make one cubic meter. so dont trust the other answer i dont think
Which state of matter has the MOST energy?
Answer:
gas has the most energy! hope that helps :D
When 2 protons, which are positively charges particles, come in contact they typically ______ one another.
A. Attract
B. Bond With
C. Destroy
D. Repel
The electric field of a charge is defined by the force on what kind of particle?
a) electron.
b) proton.
c) source charge.
d) probe charge.
Answer:
correct answers C
Explanation:
the electric field is derived from Coulomb's law, where the charge has been assumed to be positive.
The expression remains
F = k q₁ q / r²
the electric field is
Fe = (k q₁ / r²) q
The amount between parentises rs constant
by checking the correct answers C
HELPPPPPPPP PLSSSSSSSS A car moves with constant velocity along a straight road. Its position is x1 = 0 m at t1 = 0 s and is x2 = 66 m at t2 = 6.0 s . Answer the following by considering ratios, without computing the car's velocity.\ 1.What will be its position at t = 24 s ? 2.What is the car's position at t = 3.0 s ?
Answer:
Explanation:
6.2 miles
Answer: 1. 264, 2.33
Explanation: Explanation: 66m= 6s so, to find the position at 3s you just need to take 66/2 = 33m cause 3 is half of 6. & for 2 you will take 66x4= 264m cause it took 4s multiply by the original 6s to get 24s. Answer: 1 is 264m & 2 is 33m.
help pleaseeee my brainnn stopped working once again lol
Answer:
1c 2a 3b
Explanation:
What is weight?
A. The force of gravity on an object
B. The amount of matter in an object
C. The mass of an object
D. How fast an object falls
Weight is the the force of gravity on an object.
What is weight?Weight in physics is the force on an object due to the gravitational attraction between it and the Earth (or whatever astronomical object it is primarily influenced by).
Weight is often confused with mass, however, weight is a force measured in Newtons (N) rather than in kilograms like mass.
The weight of an object is subjective to its location and it can be calculated from the mass by multiplying the mass by the acceleration due to gravity of the planet it is located.
Learn more about weight at: https://brainly.com/question/28122305
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215 = 25x – 35, solve for x.
Answer:
x = 10
Explanation:
215 = 25x – 35
215 + 35 = 25x
250 = 25x
x = 250 / 25
x = 10
which statement describes a question that can be answered by a scientific investigation?
Answer:
it is based on an observation of a natural phenomenon
Explanation:
To what does the term register refer in describing sound?
If an element's atomic mass and atomic number are known, what else can be determined? Give an example to demonstrate your understanding
Answer:
Explanation:
If an elements atomic mass and number are known you can also determine the number of protons and neutrons it has. You can also determine where it is on the periodic table. For example, if a element had a atomic mass of 10 then it would be higher up on the table then one with a mass of 20. Btw I do apex too.
An airplane accelerates down a runway at 3.0 m/s/s for 10 s until it finally lifts off the ground.
Determine the velocity at take-off.
Answer:
30 m/s
Explanation:
Given:
v₀ = 0 m/s
a = 3.0 m/s²
t = 10 s
Find: v
v = at + v₀
v = (3.0 m/s²) (10 s) + 0 m/s
v = 30 m/s
A delivery man is told to go 60 miles per hour north to make his delivery on time. These instructions grab the delivery man's( 2 points)
A. speed
B. velocity
C. acceleration
D. magnitude
Answer:
The answer is B, velocity.
Explanation:
Just took the quiz. Hope this helps! Please count as braniliest.
Answer:
The answer is velocity.
Explanation:
Remember velocity is the speed of something in a given direction.
and beside i just took the quiz ♡
What is the acceleration at 1 second? Answer in units of m/s^2.
What is the velocity at 2 seconds? Answer in units of m/s.
What is the position at 2 seconds? Answer in units of m.
-- From 1 to 3 seconds, the acceleration is 2.5 m/s². (It changes suddenly at 3 seconds.)
-- At 2 seconds, the speed is 2.5 m/s .
-- At 2 seconds, the position is 1.25 meters.
BE CAREFUL !
I don't know where you got this graph, but you have to be very very careful when you try to read it. The Y-axis is not at time=0. It's at time=1. And all the whole-number seconds are between the blue lines.
Why would scientists call solids and liquids a condensed phase of matter?
Explanation:
Liquids and solids are often referred to as condensed phases because the particles are very close together.
What is the independent variable?
Answer:
a variable (often denoted by x ) whose variation does not depend on that of another.
i need help for physics this is due todayyyyy
Answer
you need to give the speed (velocity)
Explanation:
with the speed given you input that into d= v*t
you know one hour or 60 minutes or 3600 seconds which are all equivalent and you can use any as the units need to be the same to do any equation and multiply that by the speed that you have already
Which of the following is not an essential feature of scientific explanations?
a. They must be subject to testing.
b. They strictly pertain to the physical world.
c. Their validity is judged based on objective observations.
d. Once supported by observation, they can be viewed as a fact.
Answer:
D I think I might be wrong its been a while scense I did something like that
20=5 (x-10) solve for x.
Answer:
If 20 = 5 (x-10)
so 20= 5x-50
20+50= 5x
70=5x
x=70/5
so x=14
hope it's helpful for youwhy Venus is known as red planet?
Explanation:
because it appears in the sky as an ORANGE-RED STAR
Answer: Venus and Mars are known as red planets because it appears in the sky as an orange- red star.
A student measured the specific heat of water to be 4.29 J/g.Co. The
literature value of the specific heat of water is 4.18 J/g.Co. What was the
student's percent error? *
A) .0256%
B) 2.56%
C) 2.63%
D) .0263%
Answer:
2.63 %.
Explanation:
Given that,
The calculated value of the specific heat of water is 4.29 J/g.C
Original value of specific heat of water is 4.18 J/g.C.
We need to find the student's percent error. The percentage error in any quantity is given by :
[tex]P=\dfrac{|\text{original value-calculated value}|}{\text{original value}}\times 100\\\\P=\dfrac{4.29-4.18}{4.18}\times 100\\\\P=2.63\%[/tex]
So, the student's percent error is 2.63 %.
Answer:
c
Explanation:
