Answer:
115.7g
Explanation:
Given parameters:
Volume of copper = 100cm³
Mass of copper = 890g
Unknown:
Mass of 13cm³ copper = ?
Solution:
We know that the two materials are both made up of copper. Since we know the mass and volume of the first one, let us solve for the density. Using the density of the first one, we can determine the mass of the second one by the given volume.
Density is an intrinsic property of matter. It has the same value for every given substance.
It is expressed as mass per volume of a substance;
Density = [tex]\frac{mass}{volume}[/tex]
Input the parameters and solve;
Density = [tex]\frac{890}{100}[/tex] = 8.9g/cm³
Now to find the mass of the 13cm³ copper;
Mass = density x volume
Mass = 8.9 x 13 = 115.7g
how is meiosis like binary fission?
in a series circuit, why is the current always the same?
Answer:
here lol
Explanation:
7. A solid wax candle has a volume of 1,700 mL. The candle has a mass of 1.5 kg (1,500 g). What is the
density of the candle?
Answer:
The answer is 0.88 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 1500 g
volume = 1700 mL
We have
[tex]density = \frac{1500}{1700} = \frac{15}{17} \\ = 0.88235294...[/tex]
We have the final answer as
0.88 g/mLHope this helps you
Answer:
0.88
Explanation:
density = mass/volume
density = 1500/1700
density = 0.88
Can someone please help me?
Answer:
1.0 A
Explanation:
someone pls help me will give brainlist
Answer:
The volume is 5.6 L
The mass is 100.2g
Explanation:
Quantitative observations are more based on numbers and values
A dog walks a distance of 55.5 meters in 120 seconds. What was its speed?
A car travels 600 seconds at a speed of 25 m/s. How far did it go?
How long will it take a toy car to travel a distance of 1500 m at a speed of 3 m/s?
A car travels a distance of 9999 m in 3600s. What was its speed?
A sailboat travels a distance of 8080 m in 7200 seconds. What speed is it going?
What distance will a car traveling at a speed of 5.5 m/s cover in 0.25 s?
How long will it take a ball to roll 10 meters along the floor at a speed of 0.11 m/s?
Show work pls
Answer: ...
Explanation: 1: The dog is walking 0.4625MPS (Meters per second. M/S)
To calculate speed you divide the distance by time so 55.5 Meters/120 Seconds is 0.4625 MPS
2: The car traveled 15 KM
To calculate speed you need to multiply the speed by time. (Since it's multiplication it can be put in any order) So 600 Secondsx25 Meters is 15,000 M which is 15 KM.
3: It would take 8 Minutes and 20 Seconds to travel 1500 Meters.
To calculate the time you multiply Speed by distance (Order doesn't count.)
So 1500 Metersx3 MPS is 8 Minutes and 20 seconds.
4: It was going 2.7775 MPS.
To calculate the speed you divide the distance over time. So 9999 Meters/3600 seconds is 2.7775 MPS.
5: It was going 1.1222... (Infinite)
To calculate the speed you divide the distance over time
So 8080 Meters/ 7200 Seconds is 1.222...
6: It would cover 1.375 Meters.
To calculate the Distance you multiply Speed by time (Order doesn't count.)
So 10.25 Secondsx5.5 MPS is 1.375 Meters.
7: It would take 1 Minute and 31 Seconds to travel 10 Meters.
To calculate the time you multiply Speed by distance (Order doesn't count.)
So 10 Metersx0.11 MPS is 1 Minute and 31 seconds
Hopes this helps because this took over 10 minutes.
A bumper car with a mass of 240 kg is moving to the right with a velocity of 2.3
m/s. A second bumper car with a mass of 260 kg is moving to the left with a
velocity of 2.7 m/s. After the collision the first car's velocity is 2.9 m/s left, the
velocity of the second car is 2.1 m/s to the right. Prove conservation of momentum.
Assume the surface is frictionless.
Answer:
See the explanation below
Explanation:
To solve this problem we will take the definition of linear momentum, which tells us that momentum is equal to the product of mass by the velocity vector. Since velocity is a vector, we will take the right-hand movement as positive and the left-hand movement as negative, the left-hand members are taken as before the collision and the right-hand members as after the collision
ΣM1 = ΣM2
(m1*v1) + (m2*v1) = (m1*v2) + (m2*v2)
V1 = velocity before the collision [m/s]
V2 = velocity after the collision [m/s]
m1 and m2 = mass of the vehicles [kg]
Therefore:
(240*2.3) - (260*2.7) = - (240*2.9) + (260*2.1)
Resolving this arithmetic operation we will have:
720 - 702 = - 696 + 546
- 150 = - 150
We can see that before the crash and after the crash the momentum is preserved
Se lanza una piedra de 3.00 N verticalmente hacia arriba desde el suelo. Se observa que, cuando está 15.0 m sobre el suelo, viaja a 25.0 m/s hacia arriba. Use el teorema trabajo-energía para determinar a) su rapidez en el momento de ser lanzada. b) su altura máxima
Answer:
(a). The speed at the moment of being thrown is 30.41 m/s.
(b). The maximum height is 47.18 m.
Explanation:
Given that,
Weight of stone = 3.00 N
Height = 15 m
Speed = 25.0 m/s
(a). We need to calculate the speed at the moment of being thrown
Using work energy theorem
[tex]W=\dfrac{1}{2}m(v_{2}^2-v_{1}^2)[/tex]
[tex]-mg\times d=\dfrac{1}{2}m(v_{2}^2-v_{1}^2)[/tex]
Put the value into the formula
[tex]-9.8\times15=\dfrac{1}{2}\times(v_{2}^2-v_{1}^2)[/tex]
[tex]-2\times9.8\times15=25^2-v_{1}^2[/tex]
[tex]-v_{1}^2=-300-25^2[/tex]
[tex]v_{1}=\sqrt{925}[/tex]
[tex]v_{1}=30.41\ m/s[/tex]
(b). We need to calculate the maximum height
Using work energy theorem
[tex][tex]W=\dfrac{1}{2}mv_{2}^2-\dfrac{1}{2}mv_{1}^2[/tex]
[tex]mg\times d=\dfrac{1}{2}mv_{2}^2-\dfrac{1}{2}mv_{1}^2[/tex]
Here, [tex]\dfrac{1}{2}mv_{2}^2[/tex]=0
[tex]-(mg)\times d=\dfrac{1}{2}mv_{1}^2[/tex]
[tex]d=\dfrac{v_{1}^2}{2g}[/tex]
Put the value into the formula
[tex]d=\dfrac{30.41^2}{2\times9.8}[/tex]
[tex]d=47.18\ m[/tex]
Hence, (a). The speed at the moment of being thrown is 30.41 m/s.
(b). The maximum height is 47.18 m.
A hiker walks 11 km due north from camp and then turns and walks 11 km due east. What is the magnitude of the displacement (on a straight line) of the hiker from the camp?
Answer:
16 km
Explanation:
Drawing a right triangle to model the problem helps. I started by drawing the lines of the triangle to model the hiker's journey- a vertical straight line for 11 km north and then a horizontal line connected to the top of it for 11 km east; I then drew the hypothenuse to connect the two lines.
The hypothenuse is what we have to solve for, so we will use the Pythagorean Theorem, a^2 + b^2 = c^2. Since both distances are 11 km both a and b in the equation are 11.
11^2 + 11^2 = c^2
121 + 121 = c^2
242 = c^2
c = 15.56
Rounding the answer makes it 16 km for the hiker's magnitude of displacement.
when a solid turns to a gas, does it have to go through the liquid state first
Answer:
Sublimation
Explanation: When a solid goes straight to a gas it's called sublimation.
Answer:
Yes
Explanation:
At a given temperature, most chemical compounds and elements can possess one of the three different states of matter at different pressures. In these cases, the transition from the solid to the gaseous state requires an intermediate liquid state.
______________ rock forms beneath Earth's surface.
Answer:
Igneous rocks form beneath Earth's surface.
Explanation:
Igneous rocks form beneath the Earth's surface
If an object starts from rest, what is its initial velocity?
Answer:
if an object starts from rest it's initial velocity is zero
What are the three components of the FITT acronym associated with overload and progression?
A.
frequency, intensity, and type
B.
time, frequency, and intensity
C.
fitness, intensity, and time
D.
type, intensity, and fitness
Answer:
B
Explanation:
Define Fundamental unit and Derived Unit
Why do you think the area of environmental science has been in existence for the last fifty to sixty years?
Answer:
Because environmental history deals with some of the most important issues regarding the future of our planet. The hi/story of nature parks around the globe. understand the impact of humans on pollution and health. It opens our eyes for the scarcity of resources and for their conservation into the future.
Explanation:
:-)
A cyclist accelerates from a set of traffic lights.
The driving force of the back tyre on the ground is 250 N.
(a)
How much work is done by this force when the cyclist travels 5 metres?
never mind i got it
How many hours would it take a plane to fly 1,500 miles if it was moving at a constant speed of 400 miles/hour.
It would take 3 hours and 45 minutes, for a plane to fly 1,500 miles if it was moving at a constant speed of 400 miles/hour.
Calculation
Round off 3.75 to the nearest one to give the hour value i.e., 3.The minutes are obtained by multiplying the fractional portion of the decimal value by 60, or 0.75 x 60 = 45.we have 3 hours and 45 minutes.What is speed?The distance traveled in a unit of time is called speed. It refers to a thing's rate of movement.This scalar quantity known as speed is the velocity vector's magnitude, It has no clear direction.A faster rate of movement is indicated by a higher speed. It is travelling more slowly if the speed is lower. It has zero speed if it isn't moving at all.The formula: can be used to determine the constant velocity of an object traveling straight forward.r = d / twhere,
r stands for rate or speed (sometimes denoted as v, for velocity)
d is the traveled distance.
t is the amount of time needed to finish the movement.
The average speed of an object over a period of time is given by this equation. We can see the object's average speed here, however at some moments over the time frame, it may have been moving faster or slower.As the time interval gets closer to zero, the maximum average speed is reached. The speed at that moment is what you see when you look at a speedometer in an automobile. While you may have briefly reached a speed of 60 mph, your average speed over the course of 10 minutes could have been much higher or much lower.M/s is the SI unit of speed (meters per second). Miles per hour or kilometers per hour are the most widely used units of speed in everyday life. A typical speed at sea is in knots, or nautical miles per hour.To learn more about speed, refer to https://brainly.com/question/24739297
#SPJ2
A box of weight 280 N is being pulled to the right by a pulling force vec F of magnitude 50 N. The box is moving at a constant speed of 0.84 m/s . To make an accurate free-body diagram of the box, the letter f in the diagram above should be replaced with the label
Answer:
what diagram. I can't see any
this is the graph for this equation
I need help for 2 ASAP I haven’t been able to figure it out :(
Write the equivalent formulas for velocity, acceleration, and force using the relationships covered for UCM, Newton’s Laws, and Gravitation.
Answer:
The newton’s second law is F=ma
The Gravitational force is [tex]F=\dfrac{Gm_{1}m_{2}}{r^2}[/tex]
Explanation:
Given that,
The equivalent formulas for velocity, acceleration, and force using the relationships covered for UCM, Newton’s Laws, and Gravitation.
We know that,
Velocity :
The velocity is equal to the rate of position of the object.
[tex]v=\dfrac{dx}{dt}[/tex]....(I)
Acceleration :
The acceleration is equal to the rate of velocity of the object.
[tex]a=\dfrac{dv}{dt}[/tex]....(II)
Newton’s second Laws
The force is equal to the change in momentum.
In mathematically,
[tex]F=\dfrac{d(p)}{dt}[/tex]
Put the value of p
[tex]F=\dfrac{d(mv)}{dt}[/tex]
[tex]F=m\dfrac{dv}{dt}[/tex]
Put the value from equation (II)
[tex]F=ma[/tex]
This is newton’s second laws.
Gravitational force :
The force is equal to the product of mass of objects and divided by square of distance.
In mathematically,
[tex]F=\dfrac{Gm_{1}m_{2}}{r^2}[/tex]
Where, m₁₂ = mass of first object
m= mass of second object
r = distance between both objects
Hence, The newton’s second law is F=ma
The Gravitational force is [tex]F=\dfrac{Gm_{1}m_{2}}{r^2}[/tex]
According to Karl Marx, a communistic society would
be composed entirely of bourgeoisie
be composed entirely of bourgeoisie
be made up of capitalists and the proletariat
be made up of capitalists and the proletariat
have a wide variety of social classes
have a wide variety of social classes
be classless
Answer:
be classless
I think im not sure
Explanation:
The heat felt when putting a hand near a light bulb this is an example of conduction, convection, radiation?
Answer:
conduction
Explanation:
Answer:
Radiation
Explanation:
Conduction: movement of something such as heat or electricity through a medium
Convection: movement in a gas or liquid in which the warmer parts move up and the cooler parts move down
Radiation: emission or transmission of energy in the form of waves or particles through space or through a material
what are duplet and octet elements??
how much time is required for an airplane to reach its takeoff speed of 77m/s if it starts from rest to average acceleration is 8.2 m/s
Answer:
t = 9.36 s
Explanation:
Given that,
Initial velocity, u = 0 (at rest)
Final velocity, v = 77 m/s
Acceleration of the airplane, a = 8.2 m/s²
We need to find the time required for an airplane to take off its speed 77 m/s. Let t be the time. using first equation of motion to find it as follows :
v=u+at
[tex]t=\dfrac{v-u}{a}\\\\t=\dfrac{77}{8.22}\\\\t=9.36\ s[/tex]
so, the airplane will take 9.36 seconds.
Which one is correct for question 5?
Answer:
the object has a constant net force greater than zero acting on it.
Explanation:
Why was Democritus considered a philosopher and not a scientist?
Answer:
Democritus had no scientific instruments to extend the reach of his senses, so all of his experiments were just 'mind experiments', but because Democritus was a philosopher, he thought more into depth about why we humans are alive which led to the atomic theory.
Explanation:
what is the definition inertia
Answer:
a tendency to do nothing or to remain unchangedor...
resistance to change in some other physical propertyYou can choose the definition you like.
Hope this helps :)
Answer:
The tendency of a body at rest to stay at rest or of a body in motion to remain in motion .
Explanation:
Inertia is the tendency of objects to remain in motion or to stay at rest unless acted upon by an outside force.
An athlete kicks a soccer ball with a velocity of 24.2 m/s at a 26 degree angle from the ground.
Find the horizontal component of the starting velocity. (Vx)
Answer: I got was 23.71 or if you round it it'd be 23.72 but it still says that I'm wrong
Answer:
The horizontal component is 18 cos(35) = 14.745 m/s
The vertical component is 18 sin(35) = 10.324 m/s
Explanation:
y’all I would rlly appreciate if y’all gave me the answers to all my questions. My cousin has over 200 assignments she hasn’t done so I’m trying to help her and tbh I don’t know this stuff bc I’ve never done it in school.
Answer:
BB×bb cross is the answer
Can someone please help meeeeee please
Answer:
0.650
Explanation:
Move the decimal point three times to the left.
