Answer:
When a car stops suddenly, the inertia the keeps you moving forward will finally stop and give you whiplash, which could seriously injure or even kill a baby. With the seat turned back, the force will be decreased dramatically, and prevent any fatal harm.
The internal carrying force of the 4 volts of the cell in the enclosed circuit is negligible. Find out
1 total resistance
2nd circuit
3 Differential difference between a and c points
Answer:
thaYeah, I kinda dont have an answer for you either... sorry -__-
Explanation:
UGH PLSSSS HELP WILL GIVE BRAINLIEST, AND 20 POINTS
A nonpolar bond is formed when two atoms share electrons unequally.
Please select the best answer from the choices provided
T
F
Answer:
false
Explanation:
the answer is false bc for a non-polar bond to form the electrons are shared equally...
TC
Displacement of a particle executing SHM is represented by Y = 0.08 sin 3nt +
metre. Then calculate-
a time period
(d) Time period
(
Minitial phase
wõisplacement
7
(c) Displacement from mean position at t=
36
sec.
Answer:
0.08 sin 3nt +
metre. Then calculate-
a time period
(d) Time period
(
Minitial phase
wõisplacement
7
(c) Displacement from mean position at t=
36
sec.
Explanation:
thats the answer
2. How much energy does a 5 kg tennis ball have
that is sitting on a shelf that is 2m high?
Answer:
GPE= h a m
GPE= (2)(9.8)(5)
GPE=98 J
A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration?
plz, show the equation.
Answer:
6m/s²
Explanation:
Given parameters:
Initial velocity = 4m/s
Time = 3s
Final velocity = 22m/s
Unknown:
Average acceleration = ?
Solution:
Acceleration is the rate of change of velocity with time taken.
Acceleration = [tex]\frac{Final velocity - Initial velocity }{Time}[/tex]
Acceleration = [tex]\frac{22 - 4}{3}[/tex] = 6m/s²
Solids in which the atoms have no particular order or pattern are called
Answer:
Amorphous solids are composed of atoms or molecules that are in no particular order. Each particle is in a particular spot, but the particles are in no organized pattern. Examples include rubber and wax. Crystalline solids have a very orderly, three-dimensional arrangement of atoms or molecules
Explanation:
Which color of visible light has a shorter wavelength than blue light? O A. Red O B. Green O C. Violet OD. Orange A
Answer:
It's violet........
Explanation:
This was right for me.
The color of visible light that has a shorter wavelength than blue light is Red. The correct option is A.
What is electromagnetic spectrum?The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is packet of energy that travels and spreads out. It has radio waves, infrared waves and visible light waves, ultraviolet rays and microwaves.
They possess high energy even to penetrate deep within the material. electromagnetic spectrum ranges from longer wavelength and less frequency to shorter wavelength and high frequency.
The light with higher wavelength is Blue and the shorter wavelength is Red and the rest of all spectrum colors are in between.
Thus, the correct option is A.
Learn more about electromagnetic spectrum.
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17. A car traveling with a velocity of 45 m/s and has a mass of 1120 kg. The car has _________
energy. Calculate it
Answer:
[tex]sln \\ given \\ velocity \:(v) = 45ms {}^{ - } \\ mass \: of \: car \: (m) = 1120kg \\ kinetic \: enegy(k.e) = x \\ \\ k.e = \frac{1}{2} MV {}^{2} \\ k.e = \frac{1}{2} \times 1120 \times 45 \\ k.e = 25200j[/tex]
the car has kenotic energy is 2500J
The car will , have the kinetic energy of 1134 kJ. The kinetic energy is found as the product of half of mass and the square of velocity.
What is kinetic energy?The energy of the body by the virtue of its motion is known as the kinetic energy of the body. It is defined as the product of half of mass and square of the velocity.
The given data in the problem is;
A car traveling with a velocity,v= 45 m/s
The mass is, m= 1120 kg.
The kinetic energy is found as;
[tex]\rm KE = \frac{1}{2} mv^2 \\\\\ \rm KE = \frac{1}{2} 1120 (45)^2 \\\\\ \rm KE = 1134 \ kJ[/tex]
Hence, the car will , have the kinetic energy of 1134 kJ.
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Which type of energy transfer is responsible for the movement of magma in Earth's interior? A)conduction B)convection C)radiation D)melting
Answer:
B. Convection.
Explanation:
Convection is an energy transfer process which typically involves the transfer of heat as a result of the movement of mass. Convection is generally considered to be a more effective and efficient means of heat transport in the Earth when compared to conduction. The movement of tectonic plates is caused by the convection current because the heat gains pressure underneath the crust.
Hence, the type of energy transfer which is responsible for the movement of magma in Earth's interior is convection.
Additionally, subduction zone is a zone which represents the collision between the two (2) tectonic plates of planet earth. Subduction zone occurs in countries such as Japan, Canada, Indonesia, Russia, Alaska, and around the Pacific Ocean.
Generally, subduction zones are responsible for high intensity earthquakes, volcanoes and tsunamis around the world.
11) mWhich of the following sets of three units are all metric measurements
of length?*
A) inch, foot, yard
B) kilometer, centimeter, millimeter
C) kilogram, gram, centigram
D) kilometer, foot, decimeter
Answer:
Answer is B.
Explanation:
I hope it's helpful!
What is ONE variable that will change the amount of POTENTIAL ENERGY
of a box on the floor?
Answer:
The height or the mass
Explanation:
The one variable that can change the potential energy of a box on the floor is either the height or the mass of the box.
Potential energy is the energy due to the position of a body.
Mathematically;
Potential energy = mass x acceleration due to gravity x height
Therefore, if the mass of the box is changed, the potential energy changes also.
If the position of the box is changed by raising it up, the potential energy changes
what do you think explains the pattern of planet density in the solar system
Answer:
If density is greater, the object sinks. Saturn is mainly composed of the lightest two gases known, hydrogen and helium. It is the only planet in our solar system whose density is less than water
Explanation:
Planet density are uneven they all have different density.
What is density?Mass per unit of volume is referred to as density. Although the Latin letter D can also be used, the sign most frequently used for density is. Mass divided by volume is how density is mathematically defined:
If density is greater, the object sinks. Saturn is mainly composed of the lightest two gases known, hydrogen and helium. It is the only planet in our solar system whose density is less than water
Planet density are uneven they all have different density.
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What is the kinetic energy of a 90 kg mass that is moving with a velocity of 6 m/s?
Answer:
The kinetic energy of a 90 kg mass that is moving with a velocity of 6 m/s is 1620 J.
Explanation:
Given
Mass m = 90 kgVelocity v = 6 m/sTo determine
Kinetic Energy E = ?The kinetic energy (K.E) of a body of mass of a 90 kg mass that is moving with a velocity of 6 m/s can be calculated using the formula
[tex]K.E=\frac{1}{2}mv^2[/tex]
where
m is the mass (kg) v is the velocity (m/s)K.E is the Kinetic energy (J)substituting m = 90 and v = 6 in the formula
[tex]K.E=\frac{1}{2}mv^2[/tex]
[tex]K.E=\frac{1}{2}\left(90\right)\left(6\right)^2[/tex]
[tex]=\frac{1}{2}\left(90\right)\cdot \:36[/tex]
[tex]=1620[/tex] J
Therefore, the kinetic energy of a 90 kg mass that is moving with a velocity of 6 m/s is 1620 J.
If a car has traveled 24 km in 2 hours, what is its average speed?
Answer:
12km per hour
Explanation:
The formula is distance/time.
24km/2 hours = 12km/1 hour
Explanation:
average speed = distance / time
= 24km/ 2 hr
= 12 km/ hr
Hope this will be helpful to you .
A 10 kg ball is released from the top of a hill. How fast
is the ball going when it reaches the base of the hill?
Approximate g as 10 m/s2 and round the answer to the
nearest tenth.
m/s
hy = 2 m
h = 0.5 m
Answer: 5.5 m/s
Explanation:
5.5 is the answer for edge :)
an iPod rest at a 1.2 m high table how much time does it take to fall to the floor
Answer:
0.49 s
Explanation:
i'm in middle school sorry if i'm wrong.
The time taken for the iPod to fall from the top table is 0.5 s.
The given parameters;
height of the table, h = 1.2The time taken for the iPod to fall from the top table is calculated as follows;
[tex]h = v_0t + \frac{1}{2} gt^2\\\\h = 0 + \frac{1}{2} gt^2\\\\h = \frac{1}{2} gt^2\\\\gt^2 = 2h\\\\t^2 = \frac{2h}{g} \\\\t = \sqrt{ \frac{2h}{g} } \\\\t = \sqrt{ \frac{2\times 1.2 }{9.8} }\\\\t = 0.5 \ s[/tex]
Thus, the time taken for the iPod to fall from the top table is 0.5 s.
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Do the atoms in salt follow a pattern
Answer:
Explanation:
Yes, the atoms in a salt do follow a pattern knows as crystalline pattern or crystalline structure. It means it has an ordered arrangement of atoms or ions. As salt is an ionic compound of Sodium and Chlorine, it is formed through ionic bond. This pattern keeps on repeating for each molecule of NaCl
Answer:
yes they do crystalline pattern as well as othe ionic compounds.
NEED HELP ASAP !! WILL GIVE BRAINLEIST !!
Answer:
53775
Explanation:
ke= 0.5mv(2)
= 0.5 x 478 x 15(2)
53775
What is the equation for impulse?
In which direction does an applied force move an object?
Question 1 options:
independent of the force
in the opposite direction of the force
in the same direction as the force
perpendicular to the force
Answer:
in the opposite direction of the force
Answer:
The force applied moves the object in the direction of the force. Suppose if the force is applied to the moving object in that case object moves in the direction of the stronger force. Thus, according to the given question the applied force moves the object in its direction.
that means it's the 2nd option( in the opposite direction of the force
Explain how a helicopter lifts itself up, from a Newton's 3rd Law perspective,
how do i calculate this?
CAR 1
Momentum = Mass/Velocity
M = 2100/20
M = 105 m/s^2
CAR 2
Momentum = Mass/Velocity
M = 2100/30
M = 70 m/s^2
A 33 kg child on a swing has a potential energy of 720 J with respect to the ground. What is the child’s height above the ground? please answer soon
Answer:
h = 2.22 m
Explanation:
Using the international system, we know that the gravity of the earth is 9.8 m / s².
then, we have as data:
Potential Energy (Ep) = 720 JMass (m) = 33 kgGravity (g) = 9.8 m/s²Height (h) = ?Use formula:
[tex]\boxed{h=\frac{Ep}{m*g}}[/tex]Replace:
[tex]\boxed{h=\frac{720J}{33kg*9.8\frac{m}{s^{2}}}}[/tex]Joules descompose:
[tex]\boxed{h=\frac{720N*m}{33kg*9.8\frac{m}{s^{2}}}}[/tex]Solve the multiply of mass and gravity:
[tex]\boxed{h=\frac{720N*m}{323.4kg*\frac{m}{s^{2}}}}[/tex]Multiply the units. Knowing that kg * m/s² = N, so:
[tex]\boxed{h=\frac{720N*m}{323.4N}}}[/tex]Simplify the Newtons (N), and it divides:
[tex]\boxed{h=2.22\ m}[/tex]What is the child’s height above the ground?
The child's height above the ground is 2.22 meters.
Milk in a hot cup can be cooled by pouring its back and fourth between the bigger cup.How does this action help to cool milk?
A 50.0 kg child is riding in a 120.0 kg bumper car at an amusement park. The child drives the bumper car at 4.5 m/s head-on into the wall of the ride and rebounds at the speed. What is the magnitude of the change in momentum of the child in the bumper car?
Answer:
Explanation:
Total mass of child and car = 50 + 120 = 170 kg .
initial velocity u = 4.5 m/s
initial momentum = mass x velocity = 170 x 4.5 = 765 kg m/s
final velocity = - 4.5 m/s [ - ve is due to reversal of direction ]
final momentum = - 765 kg m/s
change in momentum = final momentum - initial momentum
= - 765 - ( 765 )
= - 1530 kg m/s .
Momentum of a body is the product of mass and the velocity of the body.
The magnitude of the change in the momentum of the child in the bumper car is 1530 kg-m/s.
What is change in momentum?The change in momentum of a object is the difference of the final momentum to the initial momentum.
Given information-
The mass of the child is 50 kg.
The mass of the bumper car is 120 kg.
The initial velocity of the bumper car is 4.5 m/s.
Momentum of a body is the product of mass and the velocity of the body. The initial momentum of the child in the bumper car is,
[tex]p_i=(m_c+m_b)u[/tex]
Here, [tex]m_c[/tex] is the mass of child and [tex]m_b[/tex] is the mass of the bumper car. Also [tex]u[/tex] is the initial velocity,
[tex]p_i=(50+120)\times4.5\\p_i=765[/tex]
Thus the initial momentum of the child in the bumper car is 765 kg-m/s.
When the bumper car head-on into the wall of the ride then it rebounds at the speed. Thus the final momentum will be opposite in the direction. Thus final momentum is,
[tex]p_f=-p_i\\p_f=-765[/tex]
As the change in momentum of bumper car is the difference of the its final momentum to the initial momentum. thus,
[tex]\Delta p=pf-pi\\\Delta p=-765-765\\\Delta p=-1530[/tex]
Hence the magnitude of the change in the momentum of the child in the bumper car is 1530 kg-m/s.
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Abdul works at the planetarium where he is responsible for creating a show on stars. His show is entitled "A Star is Bom," and it will explain the
forces that create a star.
Abdul is creating a timeline of a star's life including its beginning, middle, and end. Abdul found a picture to include of the region around a star
before its formation begins. What does it look like?
Answer:
dust cloud
Explanation:
Stars are formed from the accumulation of the dust as well gases in the solar system. The dust and the gases collapses due to the the gravity forces and the stars are formed.
They are formed within the clouds of the dust and gases and are scattered in the galaxies. The stars are formed in a million of years from the dust clouds.
In the context, Abdul have a picture of a dust cloud which looks smoky and dusty which is the initial stage of the stars formation due to the gravity. It is the region of the star that looks like a cloud of dust before the formation of the star.
a uniform beam 6.0 metre long and weighing 4kg rests on support at p and q placed left and right 1.0 metres from each end of the beam weights of mass 10 kg and 8kg are placed near p and q respectively one each end of the beam.calculate the reaction at p and q?
Answer:
Explanation:
I need the answer me too
Answer:
p and q are 4.0 m apart
moments around q
4 p = (10 * 5) + (4 * 2) - (8 * 1)
p = 12.5
Rp = 12.5 g
moments around p
4 q = (8 * 5) * (4 * 2) - (10 * 1)
q = 9.5
Rq = 9.5 g
plz mark me as brainly
Explanation:
Which is a unit of length in the International System of units?
A inch
B. foot
C. millimeter
D. mile
Answer:
Source: National Bureau of Standards Wall Chart. 1 inch, = 25 millimetres. 1 foot, = 0.3 metre. 1 yard, = 0.9 metre. 1 mile ...
Explanation:Source: National Bureau of Standards Wall Chart. 1 inch, = 25 millimetres. 1 foot, = 0.3 metre. 1 yard, = 0.9 metre. 1 mile ...
if a runner is going 600 miles in 6 minutes what is his speed?
What if he is still going 600 miles in 7 minutes?
PLEASE HELP ME I HAVE NO IDEA WHO JAKIE ROBINSON IS...
1.) Why is Jackie Robinson an American hero?
2.) What do you admire about Mr.Robinson
3.) If Jackie Robinson was alive today, what do you think he will have to say?
Answer:
ch 46umm nym m m m m hj hj hj
Explanation: