Answer:
Patterson isolated lead from fragments of a meteorite that had struck Earth thousands of years ago, and determined the age of the fragments by analyzing proportions of the lead isotopes. The meteorite is assumed to have been formed at the same time as the rest of the solar system, including Earth
Explanation:
A car is driving along a road at a speed of 50 km/hr. How far will the car travel in 5 hours?
Answer:
I think it's 250
Explanation:
If the car is traveling 50 km/hr that means every hour, the car drives 50 km. So if you want to know how far it will go in 5 hours you do 50x5.
What type of collision conserves total system kinetic energy?
Answer: Elastic collision
Explanation:
In an elastic collision there is no loss of kinetic energy as a result of the collision
It's the space between two object
5 Letter word
Answer:
Matter? Atoms? Oxygen Molecules?
What confirms that the process of seafloor spreading is occurring?
A small dog walks 12 meters east and then 5 meters north. How many meters is the dog from her starting position?
Answer:
17 meters
Explanation:
because 12 meters +5 meters =17 meters
what’s the equation for this
Please Please Please help on these 3 questions :) 20 POINTS!! - NO LINKS PLEASE
What are the forces applied to a catapult while it's on the ground?
What forces are applied to the catapult itself?
What forces are applied to the marshmallow (object being launched)?
Please answer them all to get Brainliest!!
Answer:
Catapult on the ground: Normal, gravity
Catapult (I'm assuming launching marshmallow): Reaction of Force Applied
Marshmallow: Force Applied
Explanation:
This is the forces that act on a stationary object and a launched object. The catapult may also experience a force friction if your teacher is taking a more practical sense.
4
At which position is the roller coaster car's
amount of potential energy about equal to
the amount of kinetic energy?
(F) Position A
G.Position B
H) Position ©
Position
I.Position D
A measure of the body's resting energy expenditure based on data that is collected four hours after eating or physical activity is called the _________?
6. Ella holds an ice cream cone in her hand. She soon notices that her hand begins
to feel cold. What is different about the particles that make up her hand?
A They are getting larger.
B They are gaining average energy.
C They are moving slower on average.
D They are joining together.
Answer:
C
Explanation:
the ice cream is transferring the coldness into her hand and slowing down the particles. hot means they move faster, cold is to slow down
In many areas electricity is produced by huge generators close to dames. What function does a large volume of moving water have in generating electricity?
Answer:
To increase the volume of moving water, impoundments or dams are used to collect the water. An opening in the dam uses gravity to drop water down a pipe called a penstock. The moving water causes the turbine to spin, which causes magnets inside a generator to rotate and create electricity.
How many seconds are in a day?
Answer:86,400
Explanation:
hewo (´▽`ʃ♡ƪ)
if u report your a b/i/t/c/h
Answer:
hai >.<
Explanation:
Answer:
hello!
Explanation:
~evita
What types of energy transformations take place when a balloon lights a light bulb?
A jet plane can travel at a speed of 600 km/h. How far will the jet travel if it flies at full speed for 2 hours?
Answer:
that jet will fly 1200 km in 2 hours
Jack travels 80 km in 50 minutes. What is his speed in m/s?
Answer:
1.6 m/s?
Explanation:
80 ÷ 50 = 1.6 m/s
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Give reasons why water should not be used in liquid-glass thermometer
Answer:
one of the reasons is that it wets the glass thermometer it also doesn't detect slight changes in temperature of the atmosphere it has a high boiling point I don't know the rest
A marble is thrown horizontally with a speed of 15.0 m/s from the top of a building. When it strikes the ground, the marble has a velocity that makes an angle of 65.0° with the horizontal. From what height above the ground the marble was thrown. How far from the base of the building, did the marble land?
You travel 200 m in 120minutes. What is your speed in miles per hour?
Answer:
100
Explanation:
60 minutes is an hour and there are 120 minutes so there are 2 hours. You divide 200 m by 2 and you get 100.
If a riding lawnmower engine exerts 19 hp in one minute to move the mower, how much work is done? (Hint convert: 1 watt equals 0.00135962 hp)
Answer:
Work done = 838470 Joules.
Explanation:
Given the following data;
Power = 19 hp
Time = 1 minute to seconds = 60 seconds.
Next, we would convert the unit of power in "hp" to "Watt."
1 Watt = 0.00135962 horsepower
x Watt = 19 horsepower
Cross-multiplying, we have;
19 = 0.00135962x
x = 19/0.00135962
x = 13974.5 Watts.
Now, to find the work done in moving the mower;
Work done = power * time
Substituting into the formula, we have;
Work done = 13974.5 * 60
Work done = 838470 Joules.
PLS HELP MEH!!!!
Sound travels fastest in
a) air
b) water
c) glass
d) diamond
WILL MARK BRAINLIEST IF ANSWER
Answer:
hope this helps
Explanation:
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids
so your answer would be B.
Which of the following best describes why tidal energy is considerd a renewable resorce?
Answer:
It is green. Aside from being renewable, tidal energy is also an environmentally friendly energy source because it does not take up a lot of space and does not emit any greenhouse gases.
Explanation:
What causes the apparent colors of the objects we see?
Answer: The human eye and brain transform light into color. Allowing us to see them.
Explanation: Light receptors within the eye turn light into color. The color that is reflected off of an object, is what we see. Hope this helps.
The apparent colors of the objects we see causes due to reflection of the light which they absorb and emit.
What is reflection?Reflection is the change in direction of a wavefront which occurs at an interface present between the two different media so that the wavefront of the wave returns into the medium from which it has been originated. Common examples of reflection include the reflection of light, sound wave and water waves.
The color of an object is the wavelengths of light waves that it reflects. The reflection is determined by the arrangement of electrons in the atoms of that substance which will absorb and re-emit photons of particular energy levels according to the quantum laws.
Learn more about Reflection here:
https://brainly.com/question/30270479
#SPJ6
What is the gravitational potential energy of a tiger that weighs 200 N standing on a rock that is 2 m above the ground?
Kelly sits on a rock in a field. Which of the following examples correctly name force pairs? Select all that apply.
А
Kelly pushes on the rock, and the rock pushes on Earth.
B
Earth pulls on Kelly, and Kelly pulls on Earth.
с
The rock pushes on Earth, and Earth pulls on the rock
D
Kelly pushes on the rock, and the rock pushes on Kelly.
Answer:
A
Explanation:
What is the acceleration of a 5.9 kilogram bowling ball if a force of 11 N is applied to it?
Answer:
1.86 [tex]m/s^{2}[/tex]
Explanation:
Acceleration = [tex]\frac{Force}{mass}[/tex]
Force = 11N
Mass = 5.9 kg
∴ Acceleration = [tex]\frac{11}{5.9}[/tex]
= 1.86 [tex]m/s^{2}[/tex]
which kind of scientist is most likely to study matter and the different ways it can
change?
A. Astronomer
B. Chemist
C. Zoologist
D. Surgeon
heat engine operating between 100 °C and 700 °C has an efficiency equal to 40% of the maximum theoretical efficiency. How much energy does this engine extract from the hot reservoir in order to do 5000 J of mechanical work?
Answer:
Explanation:
Theoretical efficiency = T₁ - T₂ / T₁ where T₁ and T₂ is absolute temperature of hot and cold end of the heat engine.
= 600 / (273 + 700 )
= 600 / 973
= .6166
operating efficiency = 40% of .6166
= .4 x .6166
= .2466 = 24.66 %
efficiency = work output / heat input
= 5000 / heat input = .2466
heat input = 5000 / .2466
= 20275.75 J .
HEAT EXTRACED = 20275.75 J.
What is the mass of an object travelling at 25 m/s with a kinetic energy of 3775 J?
Answer:
You can do 6516-3775=2741The difference is 27141 kilometersDid this help?⇒ Yes or No?A toy cart with a weight of 10N moves with a constant velocity of 2 m/s to the right on a horizontal table. According to Newton's Laws of Motion, which of the following statements is correct?
a
The table exerts a force of 10N upward on the toy cart.
b
The toy cart exerts a force of 10N upward on the toy table.
c
The toy cart exerts a force of 2N downward on the table.
d
The toy cart exerts a force of 2N to the right on the table.
Answer:
Its A ik cuz i just studied it when i was answering this question...
Explanation:
have a good day!