Answer:
~3°
Explanation:
x^2 + 0.16^2 = 3^2
x^2 + 0.0256 = 9
x^2 = 8.9744
x = sqrt(8.9744) = 2.99... = ~3
which type of thermal energy trnasfer dose a foil wrapping reduce the most
Answer:
Conduction
Explanation:
Hope this helps :)
pls make brainliest :p
1. A race car accelerates uniformly from 19.5 m/s to 50.1 m/s in
2.47 seconds. Determine the acceleration of the car.
The acceleration of the car is 79.8.
Answer:
12.39m/s²
Explanation:
use the formula a=v-u
t
+50 POINTS!!
SOMEONE PLEASE HELP!!!! I CANT FIND ANYTHING ELSE TO HELP ME WITH THIS!!!
Measure a pencil, end to end. Draw a sketch of the pencil and show your measurements. If you were to balance the pencil horizontally on your finger, where do you think it would be balanced? Note this on your sketch, and write down your hypothesis (distance from each end) and your prediction.
Now test your hypothesis. Balance the pencil on your finger horizontally. When it is balanced, your finger is at the center of gravity. Note and make a mark where your finger is in relation to each end of the pencil.
Measure from one end of the pencil to where your finger balanced it. Show this on your sketch, and record the data it in your chart.
Repeat steps b-c a second time for the pencil.
Repeat steps a - d using a pen and crayon as well.
What are your results? Compare your results with your hypothesis and then write an explanation in a conclusion. Which item has a center of gravity closer to the actual center that you measure?
Answer:
my pencil is about and 1/2 inches
i think it would be in the middle about 1 inch away
my hypothesis was wrong he was like a 1/2 inch on one he right side and he left didn't
Explanation:
hope this helps
On a trip you travel at a constant speed of 25 kilometers per hour South for 1 hour. You then turn West and travel at a constant speed of 50 kilometers per hour for 2 hour. Calculate your velocity for the trip.
Answer:
41.66 km/h
Explanation:
Calculate the distance of 1st travel :
v = d/t
25 km/h = d/1 h
d = 25 km/h × 1 h
d = 25 kmCalculate the distance of 2nd travel :
v = d/t
50 km/h = d/2 h
d = 50 km/h × 2 h
d = 100 kmCalculate the velocity of trip :
v = d/t
v = (25 + 100)/(1 + 2)
v = 125 km/3 h
v = 41.66 km/hSo, my velocity for the trip is 41.66 km/h
2 Select the correct answer. In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true for this chemical reaction? O A Energy is absorbed in the reaction. OB. Energy is released in the reaction. OC. There is no transfer of energy in the reaction. OD Energy is lost in the reactlon. Reset Next ghts reserved.
Answer:
B Energy is released
Explanation:
what are effects of gravity??
Anyone help me
Answer: Gravity has an effect of a gravitational pull, which keeps things on the ground instead of floating around like we are in space.
Answer:
hello
The sun's gravity keeps Earth in orbit around it, keeping us at a comfortable distance to enjoy the sun's light and warmth
Explanation:
hope it helps
good day
tysm ☀❤✅✌
If you throw a ball into the air, Earth exerts a force on the ball. The ball in the air exerts no force.
Answer:
If an unbalanced force is acting on a rope, the rope will accelerate In The Direction Of The Unbalanced Force. The speed you read on your speedometer is the Constant speed.
Explanation:
did it on edge
A bicycle and a tennis ball are both at the top of a hill storing potential energy. If they both start rolling down the hill at the same time, which one will have the most
kinetic energy?
Answer:
a bicycle has more kinetic energy cuz kinetic energy depends on mass and velocity.bicycle has more mass than a tennis ball.
what falling object inspired newton to think about gravity
Legend has it that a young Isaac Newton was sitting under an apple tree when he was bonked on the head by a falling piece of fruit, a 17th-century “aha moment” that prompted him to suddenly come up with his law of gravity.
Graphs show relationships between two or more variables. Which three features describe a line graph?
A.
Shows how a variable changes in relation to another variable
done
B.
Has an x-axis and a y-axis
C.
Shows the dependent variable on the x-axis
D.
Has neither an x-axis nor a y-axis
done
E.
Shows the independent variable on the x-axis
Answer:
A, B, and E
Explanation:
C and D are wrong;
Line graphs do not show the dependent variable on the x-axis.
Line graphs do have both an x-axis and a y-axis.
what makes a force a vector quantity
Answer:
A vector quantity is a quantity that has both magnitude and direction.
Explanation:
How much electrons are in the nucleus of an atom with a atomic number of 20
Answer: There would be 20 electrons.
Explanation: Remember the electrons number is the same as the atomic number.
I NEED A 100% ACCURATE ANSWER FOR THIS QUESTION ASAP NO LINKS !!!
Answer:
static friction
Explanation:
on which temperature scale does the average kinetic energy of molecules double when the temperature doubles?
Answer:
where are the choices i think 100% that is my opinion
Which are examples of chemical weathering? Choose the two correct answers. (1 poir
-rock breaking apart during a rock slide
-an insect digging a hole in rock for its home
-oxidation of certain metals in rock
-an increase in temperature in daytime causing a rock to crack
-acid rain breaking down compounds in rock statues
Oxidation of certain metals in rock and acid rain breaking down compounds in rock statues are examples of chemical weathering.
What is chemical weathering?
When chemicals are diluted and dissolved in water, they seep and percolate down the surfaces of rocks, causing chemical weathering. Chemical weathering occurs in humid tropical regions and other places with high temperatures and a sufficient supply of water.
The reaction of chemicals in water or air causes minerals to change in composition as chemical weathering takes place. Additionally, this causes the breakdown of rocks. Leaching is the process of carrying away some components of rock breakdown through rocks and soil.
These materials may eventually be transported by the water to rivers and the sea. The oceans' saltiness comes from this source. Oxidation, the breakdown of calcium carbonate, and acid rain breaking down compounds in rock statues by chemical reaction are examples of chemical weathering.
Learn more about chemical weathering here:
https://brainly.com/question/14426457
#SPJ2
4. Looking at the picture below, the DISTANCE traveled by this person
starting at position A to B to C to D to Ais*
Answer:
The distance traveled is 24 meters but the change in position is 0 meters because the person comes back to the same point.
Explanation:
To be straight it is 24 meters.
A lightbulb uses 2,000 J of energy in 1 min and 20 s. What is the power of the lightbulb?
Answer:
ga tau gw ah binatang aje
why should a building have better thermal insulation placed in its ceiling than in its walls
Answer:
In a building, heat rises. By putting the insulation in the ceiling heat will rise and get trapped at the top and fill up the entire room. The purpose of insulation is to minimize the transmission of heat within the walls, floors, and ceilings. By minimizing the transmission of heat, you not only keep the room warm but you also lower your electricity and heat bill.
in the international space station which orbits earth, astronauts experience apparent weightlessness because
Answer:
because there isn't any gravity there
Which of the following accurately describes circuits? Question 5 options: A) In a series circuit, the amount of current passing through each part of the circuit may vary. B) In a parallel circuit, the same amount of current flows through each part of the circuit. C) In a series circuit, the current can flow through only one path from start to finish. D) In a parallel circuit, there's only one path for the current to travel.
Answer:
The Answer would be C
In a series circuit , the current can only flow through only one path from start to finisb
A car starts from rest and accelerates uniformly over a time of 6.92 seconds for a distance of 163 m. Determine the acceleration of the car. (Round to one decimal place.)
(okay but can someone actually help because if I don't pass this ima fail physics)
[tex]\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2[/tex]
[tex]\\ \sf\longmapsto 163=0(6.92)+\dfrac{1}{2}a(6.92)[/tex]
[tex]\\ \sf\longmapsto 163=3.46a[/tex]
[tex]\\ \sf\longmapsto a=\dfrac{163}{3.46}[/tex]
[tex]\\ \sf\longmapsto a=47.1m/s^2[/tex]
In a friendly soccer game, you hit a ball with a speed of 13 m/s at an angle of 24 degrees above the horizontal. (A) How long does it take for the ball to reach the goal if it is 4.2 meters away? (B) How high is the ball when it reaches the goal?
a) V= 13m/s at 24 degrees
X component of velocity Vx= V*cos24 =11.876 m/s
distance =4.2 meter
time =distance/speed =4.2/11.876 =0.3537 s
b) Vertical component of speed = Vy=vsin24=
5.29 m/s
s=ut+0.5at^2 =5.29880.3537-0.5*9.8*0.3537^2
=1.257 m above ground
Hope I helped! ヾ(^▽^*)))
Two metal spheres are suspended on wires so that they hang next to each other, just touching. Sphere X is raised to a certain height and released. Without
friction or air resistance, describe what would happen to Sphere Y.
Answer:A
Explanation:
what do we mean by accretion in the context of planet formation?
Barnard's star distance from earth in light years
Answer:
5.978 años luz
Explanation:
Hi! Your answer is: The distance between the Barnard's star and Earth is 5.978 light years.
What is the kinetic energy of your car if it has a mass of 100kg and is driving
at a speed of 12m/s?
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
As we know,
[tex]\boxed{ \boxed{kinetic \: \: energy = \frac{1}{2} mv {}^{2} }}[/tex]
where,
m = mass = 100 kgv = velocity = 12 m/slet's solve for kinetic energy of car :
[tex] \dfrac{1}{2} \times 100 \times 12 \times 12[/tex][tex]100 \times 12 \times 6[/tex][tex]7200 \: \: joules[/tex]what is the most dangerous chemical on the periodic table?
Answer:
Polonium Marked as Po with atomic number 84, is a highly radioactive heavy metal. It is arguably the most lethal known material.
Explanation:
How much energy does your soda lose if 25.0g of water condenses on the outside of the can?
The mass given is 25.0 grams. As for the change in temperature, I will assume that it start off at room temperature, 25°C.
NEED HELP!!!!! 12 POINTS!!!!
If there are two objects of equal size but object A is heavier than object B, which statement is TRUE according to Newton’s second law of physics?
OPTIONS:
A.
Object A will require less force to be set in motion and will travel faster.
B.
Object B will require less force to be set in motion and will travel faster.
C.
Object A will require more force to be set in motion but will travel faster than object B.
D.
Object B will require more force to be set in motion but will travel faster than object A.
PLEASE NO LINKS
make a island with all renewable energy soursws and how it works and about it but at year 9 level
Answer:
How are we expected to make an island