A car (m=1200kg) accelerates at 3m/s/s for d=10m. How much work has the engine done? *
A) 5400J
B) 36000J
C) 352800J
show your work please

Answer:

C because it changes your energy

Answer:

Image is formed by the reflection of light rays by an object. Image has the colour of the object. ... Shadow is formed by the obstruction of light by an opaque object. Shadow is always black.

Image is formed by the reflection of light rays by an object. Image has the colour of the object.

Shadow is formed by the obstruction of light by an opaque object. Shadow is always black.

Answer:

[tex]\langle 1,\, 2\rangle[/tex].

Explanation:

Both [tex]U[/tex] and [tex]V[/tex] are two-dimensional vectors. In other words, each of them has two components. Each component is a number.

When adding two vectors, add each component separately. The sum should include the same number of components as the vectors that are being added.

Since [tex]U[/tex] and [tex]V[/tex] has two components each, their sum, [tex](U + V)[/tex], would also include two components.

Sum the first components of [tex]U[/tex] and [tex]V[/tex] to find the first component of [tex](U + V)[/tex]: [tex]4 + (-3) = 1[/tex].

Similarly, sum the second components of [tex]U[/tex] and [tex]V[/tex] to find the second component of [tex](U + V)[/tex]: [tex]-6 + 8 = 2[/tex].

Hence, [tex](U + V) = \langle 1,\, 2 \rangle[/tex].

Answer:

All waves travel at the same speed c.

Answer:

22 m = 2200 cm

.58 / 2200 = .00026 = .026 %

Percent error = +_ .026      

Answer:

KE = 1/2 I * w^2       where I = moment of inertia and w the angular velocity

The hoop has all of it mass at a distance of R from the axis of rotation,

I = M R^2 for the hoop,  the others have values of I that are less that of the hoop.

Answer:

False

Explanation:

Took the test and got a 100%

The statement " Research indicates that genetics does not influence levels of aggression." is False.

Genetics is the branch of biology that studies genes, heredity, and genetic variation in living organisms. It involves the study of how traits and characteristics are passed down from one generation to another through the genetic material, such as DNA, that is contained in the chromosomes of cells. Genetics plays a crucial role in understanding the development, growth, and functioning of organisms, as well as the causes and treatment of genetic diseases.

Here in the Question,

The statement that "genetics does not influence levels of aggression" is not entirely accurate. While there is no single gene that determines aggressive behavior, research has shown that genetics can play a role in influencing aggression.

Studies have found that certain genes are associated with increased risk for aggressive behavior, including those involved in the regulation of neurotransmitters such as serotonin and dopamine, which are known to affect mood and behavior. Additionally, environmental factors can interact with genetic factors to increase or decrease the expression of genes that influence aggression.

So, it is important to note that genetics is not the sole determinant of aggression. Environmental factors, such as childhood experiences, exposure to violence, and social and cultural influences, also play a significant role in shaping behavior.

Therefore, it is more accurate to say that aggression is a complex interplay between genetic and environmental factors.

To learn more about genes click:

https://brainly.com/question/29762819

#SPJ3

Answer:

The speed of the raindrop  and the mosquito is 8.02 m/s.

Explanation:

mass of mosquito = m

mass of drop = 45 m

initial velocity of mosquito, u = 0 m/s  

initial velocity of drop,  u' = 8.2 m/s

During the inelastic collision, the momentum of the system is conserved.  

Let the speed of rain drop and the mosquito is v.

Use the conservation of momentum

m x u + 45 m x u' = (m +  45 m) v

m x 0 + 45 m x 8.2 = 46 m x v

v = 8.02 m/s

Answer:

[tex]m=6.85\times 10^{24}\ kg[/tex]

Explanation:

The radius of Earth is [tex]6.67\times 10^6\ m[/tex]

The density of an object is given by :

[tex]d=\dfrac{m}{V}[/tex]

The density of Erth is, d = 5515 kg/m³

Where

m is the mass of the Earth

So,

[tex]m=d\times V\\\\m=\dfrac{4}{3}\pi r^3\times d[/tex]

Put all the values,

[tex]m=\dfrac{4}{3}\pi \times (6.67\times 10^6)^3\times 5515 \\\\m=6.85\times 10^{24}\ kg[/tex]

So, the mass of the Earth is equal to [tex]6.85\times 10^{24}\ kg[/tex].

Answer:

kg.m/s

Explanation:

it is a division of a mass and a speed

Questions Diagram is attached below

Answer:

[tex]T=2.08s[/tex]

Explanation:

From the question we are told that:

Speed of Train [tex]V=3.0m.s[/tex]

Angle [tex]\theta=12\textdegree[/tex]

Height of window [tex]h_w=0.90m[/tex]

Width of window [tex]w_w=2.0m[/tex]

The Horizontal distance between B and A from Trigonometric Laws is mathematically given by

 [tex]b=\frac{0.9}{tan12}[/tex]

 [tex]b=4.23[/tex]

Therefore

Distance from A-A

 [tex]d_a=2.0+4.23[/tex]

 [tex]d_a=6.23[/tex]

Therefore

Time Required to travel trough d is mathematically given as

 [tex]T=\frac{d_a}{v}[/tex]

 [tex]T=\frac{6.23}{3}[/tex]

 [tex]T=2.08s[/tex]

Answer:

[tex]W=2.69*10^{6}J[/tex]

Explanation:

Generally the equation for momentum is mathematically given by

Diameter [tex]d=10m[/tex]

Radius [tex]r =\frac{d}{2}=>5m[/tex]

Height [tex]h=4m[/tex]

Depth [tex]d=3m[/tex]

Generally the equation for Area of the circle is mathematically given by

[tex]A=\pi r^2[/tex]

[tex]A=\pi 5^2[/tex]

[tex]A=78.5m^2[/tex]

Generally the equation for Work done is mathematically given by

[tex]d_w=d_f*x[/tex]

Where

[tex]d_f=(\rho*d_v)*g[/tex]

Therefore

[tex]d_w=((\rho*d_v)*g)*x[/tex]

[tex]d_w=((1000*78.5)*9.8)*x dx[/tex]

[tex]d_w=769300x dx[/tex]

[tex]W=\int dw[/tex]

[tex]\int dw=769300 \int^4_{3}x dx[/tex]

[tex]W=(769300\2)*7[/tex]

[tex]W=2.69*10^{6}J[/tex]

Answer:

wow so cool the answer is vr 10

Answer:

[tex]d=1200\ lb/ft^3[/tex]

Explanation:

Given that,

The weight of the statue, m = 96 lb

The volume of the statue = 0.08 ft³

We need to find the statue’s weight density. We know that the density of an object is the mass of an object divided by its volume. So,

[tex]d=\dfrac{m}{V}\\\\d=\dfrac{96\ lb}{0.08\ ft^3}\\\\d=1200\ lb/ft^3[/tex]

So, the density of the statue is equal to [tex]1200\ lb/ft^3[/tex].

Explanation:

The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.

256.2 is the answer.

Here, we are asked to calulate the electric field.

Using the following formula:

E=k*lql/r^2

Yeah! Something that can easily bamboozle you.

So:

E=electric field

k=constant (8.99x10^9)

q=charge

ll= absolute value marks ( I still remember from my Algebra Course))

r=distance

Now, let's plug in the numbers.

E=8.99x10^9*l-5.77x10^-9l/(0.450)^2

And  yes! That's a LOT!

But I solved the same problem on paper 2 minutes ago:)

If you perform the calculations, you will get 256.2

Well. THIS one was correct or Acellus.

So our answer is:

Answer:

18 m

Explanation:

Given : vo = 0 m/s ; t = 3 s; a = 4 m/s^2 ; d = ? m ; average velocity = ? m/s ; fonal velocity = ? m/s

solving for the final velocity, v

v = a * t

v = 4 m/s^2 * 3 s

v = 12 m / s

Solving for the average velocity. avg v

avg v = (vo + v) / 2

avg v = (0 m / s + 12 m/s) / 2

avg v = 6 m / s

Solving for the distance traveled after 3 s

d = avg v * t

d = 6 m / s * 3 s

d = 18 meters

In the first 3s the car travels 18 meters.

If a car starting from rest has a constant acceleration of 4 meters per second per second, then it would be going at a speed of 20 m / s.

There are three equations of motion given by Newton,

v = u + at

S = ut + 1/2 × a × t²

v² - u² = 2 × a × s

As given in the problem, a car starting from rest has a constant acceleration of 4 meters per second per second,

By using the first equation of the motion,

v = u + at

v = 0 + 4 × 5

v = 20 m / s

Thus,If a car starting from rest has a constant acceleration of 4 meters per second per second, then it would be going at a speed of 20 m / s.

To learn more about equations of motion here, refer to the link given below ;

brainly.com/question/5955789

#SPJ2

June 21: longest day in Northern Hemisphere

December 22: longest day in Southern Hemisphere

September 22: autumnal equinox

march 21: vernal equinox

Answer:

Autumnal Equinox: September 22nd

Vernal Equinox: March 21st

Longest day in the Northern Hemisphere: June 21st

Longest day in the Southern Hemisphere: December 22nd

Explanation:

I hope this helps! <3

Answer:

Hydrofluorocarbons (HFCs) are man-made organic compounds that contain fluorine and hydrogen atoms, and are the most common type of organofluorine compounds. Most are gases at room temperature and pressure.

Answer:

Hydrofluorocarbons (HFC) are man-made organic compounds that contain fluorine and hydrogen atoms and are the most common type of organofluorine compounds. Most are gases at room temperature and pressure. HFCs are produced synthetically and are used primarily as refrigerants. In general, they are relatively non-flammable, chemically stable, and nonreactive.

Answer:

0.8712 m/s²

Explanation:

We are given;

Velocity of first car; v1 = 33 m/s

Distance; d = 2.5 km = 2500 m

Acceleration of first car; a1 = 0 m/s² (constant acceleration)

Velocity of second car; v2 = 0 m/s (since the second car starts from rest)

From Newton's equation of motion, we know that;

d = ut + ½at²

Thus,for first car, we have;

d = v1•t + ½(a1)t²

Plugging in the relevant values, we have;

d = 33t + 0

d = 33t

For second car, we have;

d = v2•t + ½(a2)•t²

Plugging in the relevant values, we have;

d = 0 + ½(a2)t²

d = ½(a2)t²

Since they meet at the next exit, then;

33t = ½(a2)t²

simplifying to get;

33 = ½(a2)t

Now, we also know that;

t = distance/speed = d/v1 = 2500/33

Thus;

33 = ½ × (a2) × (2500/33)

Rearranging, we have;

a2 = (33 × 33 × 2)/2500

a2 = 0.8712 m/s²

Answer:

they are all outer planets

t

Explanation:

true , a car climbs a hill, it only has potential energy

Answer:

As the car begins to roll down the hill, it loses potential energy, but gains kinetic energy. The potential energy of the position of the car at the top of the hill is getting converted into kinetic energy. Where "g" is the standard acceleration of gravity which equals 9.8 m/s2.

Explanation:

Answer:

Explanation:

the block will move to the right side with small velocity because the force from the left side greater than force from right side. Velocity will be less because of friction and gravitational attraction.

If a block of mass 2 kg is acted upon by two forces: 3 N (directed to the left) and 4 N (directed to the right), then the block would move towards the right side.

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

As given in the problem statement If a block of mass 2 kg is acted upon by two forces: 3 N (directed to the left) and 4 N (directed to the right),

The net force acting on the block = 4 Newtons - 3 newtons

                                                       = 1 Newton

Thus, we can say that the block would move to the right side.

To learn more about Newton's second law here, refer to the link given below;

brainly.com/question/13447525

#SPJ2

ans) 1.Green House gasses 2. carbon dioxide 3.nitrious gases

Answer:

Water vapor.

Carbon dioxide.

Methane.

Ozone.

Nitrous oxide.

Chlorofluorocarbons.

Explanation:

thank me later

Answer:

40 N

Explanation:

[tex]w = mg \\ w = 4 \times 9.81 \\ w = 39.24 = 40 \: [/tex]

Answer:

a. True - Joules is the unit measure for energy.

b. False - Potential energy is associated with position

c. False - Kinetic energy is associated with movement.

d. False - It's climbing, which means it also has kinetic energy.