Answer:
The answer is 2000 kgExplanation:
The mass of the car can be found by using the formula
[tex]m = \frac{p}{v} \\ [/tex]
p is the momentum
v is the velocity
From the question we have
[tex]m = \frac{60000}{30} = \frac{6000}{3} \\ [/tex]
We have the final answer as
2000 kgHope this helps you
Each box in the Punnett square is equal to _____
1/2
25%
3/4
50%
Answer:
I think it's 3/4 or 25% i am not sure
A 3 kg rubber block is resting on wet concrete. The coefficient of static friction is 0.3. What is the minimum force that must be applied to the block to make the block begin to accelerate?
Answer:
You would have to find the friction force of the rubber block which would be found with the equation of Normal force (mass*gravity) times cooeficient of friction which would give 8.82 N for the amount of friction and because you need more force than 8.82 N (assuming gravity is 9.8)
We need to find the frictional force of the rubber block. This is the normal force (mass × gravity) multiplied by the coefficient of friction, which gives us a friction quantity of 8.82N. This is because it requires a force greater than 8.82N (Gravity is 9.8)
What is coefficient of friction?Mathematically, = F/N, where F represents the frictional force and N represents the normal force. Because F and N are both measured in force units (such as Newtons or Pounds), the coefficient of friction is dimensionless.The friction coefficient is the ratio of the frictional force resisting movement of two contacting surfaces to the normal force pushing the two surfaces together.Both F and N are measured in units of force (such as Newtons or Pounds), so the coefficient of friction is dimensionless. The coefficient of friction has different values for static friction and sliding friction.In stiction, the frictional force resists the force applied to the object and the object remains stationary until the force of stiction is overcome. In kinetic friction, the frictional force opposes the motion of an object.To learn more about coefficient of friction, refer to:
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A body weighs less inside water
Answer:
Body weighs lesser in water because of the upward force (buoyant force) which acts on our body thereby reducing our actual weight. This is our apparent weight.
Explanation:
hope it helps
A ball is thrown vertically upwards with a velocity of 9.8 m/s. Its velocity after 1 second will be
[ Take g = 9.8 ms¯²]
9.8 m/s
19.6 m/s
Zero
2.45 m/s
[tex] \LARGE{ \underline{\underline{ \purple{ \bf{Required \: answer:}}}}}[/tex]
GiveN:
Initial velocity = 9.8 m/s²Accleration due to gravity = -9.8 m/s²Time taken = 1 sTo FinD:
Final velocity of the ball?Step-by-step Explanation:
Using the first Equation of motion,
⇒ v = u + gt
⇒ v = 9.8 + -9.8(1)
⇒ v = 0 m/s
The final velocity is hence 0 m/s.
Note:While solving questions of under gravity motions using equations of motion, remember the sign convection to avoid mistakes.You can consider positive above the ground and negative for towards it.Students in a science class were provided with this image and asked to identify which color of light would refract the most if white light was passed through a prism?which student below identified the correct color of light with the proper justification?
The identification of the correct color of the light with the proper justification would be by student 4: violet, because it has the highest frequency, therefore the correct answer is option D.
What is Wavelength?It can be understood in terms of the distance between any two similar successive points across any wave for example wavelength can be calculated by measuring the distance between any two successive crests.
As given in the problem, students in a science class were provided with this image and asked to identify which color of light would refract the most if white light was passed through a prism.
Student 4 would correctly identify and justify violet as the appropriate hue of the light since it has the greatest frequency, making option D the right response.
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Compare the momentum of a 7160 kg truck moving at 5.00 m/s to the
momentum of a 2240 kg car moving at 15.0 m/s.
Answer:
2,200
Explanation:
truck=35800,car=33600
A baseball bat is a lever. Which of the following explains how a baseball bat differs from a lever like a pry bar?
Complete question is;
A baseball bat is a lever. Which of the following explains how a baseball bat differs from a lever like a pry bar?
A) In a baseball bat, effort force is smaller and is applied over a large distance, while the resistance force is smaller and is applied over a long distance.
B) In a baseball bat, effort force is smaller and is applied over a large distance, while the resistance force is smaller and is applied over a short distance.
C) In a baseball bat, effort force is larger and is applied over a short distance, while the resistance force is smaller and is applied over a long distance.
D) In a baseball bat, effort force is larger and is applied over a short distance, while the resistance force is smaller and is applied over a short distance.
Answer:
C) In a baseball bat, effort force is larger and is applied over a short distance, while the resistance force is smaller and is applied over a long distance.
Explanation:
The correct answer is option C. This is because unlike in a pry bar, the effort force when swinging a baseball bat is larger and it is applied over a short distance; and in return the resisting force is smaller and it's applied over a long distance.
A student hangs the south pole of a bar magnet near the north pole of
another hanging bar magnet. What do the magnets do?
A. They move away from each other.
B. They move away from each other, then toward each other.
C. They move toward each other.
O D. They do not move.
When the south pole of a bar magnet is near the north pole of another bar magnet, they move toward each other. Therefore, option (C) is correct.
What is a magnet?A magnet can be described as a substance that creates a magnetic field and this magnetic field is the reason for the considerable properties of a magnet. The magnetic force pulls ferromagnetic materials, such as iron, cobalt, etc., and attracts or repels other magnetic substances.
A permanent magnet is composed of a material that is magnetized and produces its own magnetic field such material can be magnetized, and strongly attracted towards a magnet, is known as ferromagnetic, and contain the elements iron, and cobalt.
Each bar magnet possesses a set of North and South poles within them. The south pole of one magnet brings closer to the north pole of another magnet they attract each other and move toward each other.
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plz help urgent
will give brainliest
Answer:
D
Explanation:
Highest Pressure in water is always at the bottom
suppose you want to model girlfriend of a baby orangutan which type of model would you choose
Answer:
That model grilfriend would probably only want me for the cash and would talk to a million other guys...but the baby orangutan would love me and I would be able to take care of a cute baby!!:)
Explanation:
Moon A has a mass of 3M and a radius of 2R. Moon B has a mass of 4M and a radius of R. What is the ratio of the force of gravitational attraction of Moon A for Moon B to the force of gravitational attraction of Moon B for Moon A?
A.) 1:1
B.) 1:5.3
C.) 5.3:1
D.) 0.75:4
Answer:
c
Explanation:
5.3" (and any subsequent words) was ignored because we limit queries to 32 words.
15 POINTS URGENT DUE IN 5 MINUTES :(
please don’t troll.
A. A woman hiked on a trail up a mountainShe slowed down as it became more steep. She stopped at the top to take in the view below. Then she continued on the trail and walked down the other side of the mountain.
B. A truck driver left a warehouse and drove on a highway at a constant speed before he stopped for lunch. To make up for lost time, he drove faster when he got back on the highway. He unloaded his haul and drove quickly back to the warehouse.
C. A woman drove her car up steep bill and stopped at a red lightWhen the light turned green she continued to drive up the rest of the hill until she reached the gas station. She stopped to buy gas and then drove down the other side of the hill towards her office.
D. A man ran in a race and accelerated steadily for the first hour. He then continued briefly at a constant pace while he had the lead. When other runners began to catch up he accelerated againHe then continued at a constant high speed. He became overtired and slowed down until he had to completely stop running.
Answer:
D now go to ur good life :)
Explanation:
Answer:
blah
Explanation:
blah
How could sound waves damage solid objects like a spacecraft?
The energy released or absorbed by a substance during a change of state
Answer:
Specific latent heat or specific vaporation vaporization heat
on:
Uses mass only do to no temperature change only state
calculate the value of net force acting on given body?5N acting towards right & 15N force acting towards left on the brick.(draw fbd)
Answer:
The net force acting on the body is 10N directed to the left.
Explanation:
Magnitude of force to the right = 5N
Magnitude of force to the left = 15N
Net force acting on the object and in what direction;
Solution:
It is the vector sum of all forces acting on a body. This net force is the single force that will replace the forces acting on a body;
For the problem;
Net force = Force to the left + Force to the right
Let us take left to be negative and right to be positive;
Force to the left = -15N
Net force = -15N + 5N = -10N
The net force acting on the body is 10N directed to the left.
Importance of measurement
Answer:
Without the ability to measure, it would be difficult for scientists to conduct experiments or form theories. Not only is measurement important in science and the chemical industry, but it is also essential in farming, engineering, construction, manufacturing, commerce, and numerous other occupations and activities.
Explanation:
Make sure to edit so you're not copy-writed and if this was helpful could I please get brain-list
After our sun leaves the main sequence it will most likely...
A.) become a supergiant and explode in a supernova explosion
B.) become a giant and eventually form a black hole
C.) become a supergiant and eventually form a dwarf star
D.) become a giant and eventually form a dwarf star
Answer:
c
Explanation:
A large truck of mass 5000 kg is travelling at 5.0 m/s.
A motorbike has a mass of 200 kg. Both the truck and the motor bike have the same kinetic energy
What is the speed of the motorbike?
A 25 m/s
B 10 m/s
C 125m/s
D 2.5 m/s
Answer:
A - 25m/s
Explanation:
The velocity of the motorbike will be 25 m/s in order to ensure that the truck and the motor bike have the same kinetic energy.
What is Kinetic Energy?The kinetic energy of the body is by the virtue of its motion.
Given is a large truck of mass 5000 kg which is travelling at 5.0 m/s and a motorbike that has a mass of 200 kg. Both the truck and the motor bike have the same kinetic energy.
The Kinetic energy of the truck will be -
E[T] = 1/2 mv² = 1/2 x 5000 x 25 = 2500 x 25 = 62500 joules
Then Kinetic energy of the motorbike will be -
E[M] = 1/2 x 200 x v²
E[M] = 100v² joules
Now-
E[T] = E[M]
100v² = 62500
v² = 625
v = 25 m/s
Therefore, the velocity of the motorbike will be 25 m/s in order to ensure that the truck and the motor bike have the same kinetic energy.
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When does the difference between two vectors equal to zero ?
Answer: Yes, two vectors of equal magnitude that are pointing in opposite directions will sum to zero
Explanation: Two vectors of unequal magnitude can never sum to zero. If they point along the same line, since their magnitudes are different, the sum will not be zero.
Which of the following is a location with a high probability of containing an electron?
O orbital
O proton
O Bohr
Answer:
The answer is orbitial! :))
Answer:
it's orbitial
Explanation:
Help a Girl Out and Answer This you will get Brainliest, Thanks, and more points if your answer is correct (:
So I already know A is where the suns energy is produced.
Here are the options for the rest :
• region of the sun that is visible from earth
• appears as a red ring around the sun right before and after the peak of a total solar eclipse
• region that energy travels to through radiation ( movement of high energy particles )
• appears as a white ring or crown around the sun at the time of total solar eclipse
so please tell me the answer for each ( A, B, C, D ) thank you !
Answer:
this was 2 weeks ago, but im pretty sure the correct answers are:
B=c
C=d
D=b
hope this helps and is correct :)
what was the main advantage of a dial phone over an operator-controlled switchboard
6. A light ray strikes a reflective plane surface at an angle of 560 with the surface.
a) Find the angle of incidence.
b) Find the angle of reflection.
c) Find the angle made by the reflected ray and the surface.
d) Find the angle made by the incident and reflected rays.
Answer:
deez nouts
Explanation:
Water waves with a frequency of 4.5 Hz and a wavelength of 2.0m are traveling across a small harbor that is 200 m wide. How long does it take the waves to travel from one side of the harbor to the over?
Answer:
22.2 seconds
Explanation:
recall that for a regular wave
v = fλ
where v = wave velocity (we need to find this to solve the next part)
f = frequency = 4.5 Hz
λ = wavelength = 2.0m
Substituting these into the equation above,
v = fλ
v = (4.5)(2)
v = 9.0m/s
Also recall that Distance travelled = velocity x time
in our case, we found velocity above (= 9.0 m/s) and the distance across the harbor is given as 200m, hence
Distance travelled = velocity x time
200 = 9.0 x time
time = 200/9.0
time = 22.2 seconds
10. A golf ball is propelled with an initial velocity of 60
meters per second at 37° above the horizontal. The
horizontal component of the golf ball's initial veloc-
ity is
the horizontal component of the golf ball's initial velocity is 47.92 m/s.
The given parameters;
initial velocity of the golf, v = 60 m/s
angle of projection of the golf, Ф = 37°
The horizontal component of the golf ball's initial velocity is calculated as follows;
[tex]v_0_x = v\times cos(\theta)\\\\[/tex]
[tex]v_0_x[/tex] = 60 m/s x cos (37)
[tex]v_0_x[/tex] = 60 m/s x 0.7986
[tex]v_0_x[/tex] = 47.92 m/s
Thus, the horizontal component of the golf ball's initial velocity is 47.92 m/s.
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How could fluid friction be decressed
Answer:The fluid friction or drag can be reduced are minimised by giving special shape called streamlined shape to the objects which Move through fluids like air or water
Explanation:
plz mark brainlyest
When a wire moves through a magnetic field, an electric current is produced in the wire. Why does this phenomenon occur?
Answer:
The negative charges and positive charges in the wire are pushed in the opposite directions by the magnetic field .
Explanation:
Hope this helps
When a wire moves through a magnetic field, an electric current is produced in the wire, and the phenomenon to which this is referring is called electromagnetic induction, as presented in option A.
What is electromagnetic induction?A magnetic field is a region in space where a magnetic force can be detected, so when a wire moves through a magnetic field, the magnetic force exerted on the wire generates a voltage, and the voltage creates an electric current in the wire. This electromagnetic induction phenomenon occurs because of the movement of charged particles within the wire, and this phenomenon can be explained by Faraday's Law of Electromagnetic Induction.
Hence, an electric current is produced in the wire, and the phenomenon to which this is referring is called electromagnetic induction, as presented in option A.
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The question is incomplete, complete question is below
When a wire moves through a magnetic field, an electric current is produced in the wire. Why does this phenomenon occur?
A) electromagnetic induction
B)magnetic force
would someone just answer this now?
Answer:
x=36.5 m
Explanation:
Rectangular Components of a Vector
A vector can be expressed as an ordered pair (x,y) where x is the x-coordinate, and y is the y-coordinate of a rectangular system.
It can also be given as a magnitude-angle pair (r,θ) where θ is measured from the positive x-axis. It's also known as polar coordinates.
The conversion from polar to rectangular coordinates is:
[tex]x=r\cos \theta[/tex]
[tex]y=r\sin\theta[/tex]
We are given the vector as a magnitude r=47.3 m and at an angle θ=39.4°. The x-component of the vector is:
[tex]x=47.3\cos (39.4^\circ)[/tex]
Using a scientific calculator to find the trigonometric function:
[tex]x=47.3\cdot 0.7716[/tex]
x=36.5 m
define a machine in the physics subject
Answer:
Explanation:
Different Parts of an Electric Motor and Their Function
A simple motor has the following parts:
A power supply – mostly DC for a simple motor
Field Magnet – could be a permanent magnet or an electromagnet
An Armature or rotor
Commutator
Brushes
Axle
Power Source: A simple motor usually has a DC power source. It supplies power to the motor armature or field coils.
Commutator: It is the rotating interface of the armature coil with a stationary circuit.
Field Magnet: The magnetic field helps to produce a torque on the rotating armature coil by virtue of Fleming’s left-hand rule.
Armature Core: Holds the armature coil in place and provides mechanical support.
Armature Coil: It helps the motor to run.
Brushes: It is a device that conducts current between stationary wires and moving parts, most commonly the rotating shaft.
What Is The Working Principle of An Electric Motor?
The working of an electric motor is based on the fact that a current carrying conductor produces a magnetic field around it. To better understand, imagine the following situation.
Take two bar magnets and keep the poles facing each other with a small space in between. Now, take a small length of a conducting wire and make a loop. Keep this loop in between the space between the magnets such that it is still within the sphere of influence of the magnets. Now for the last bit. Connect the ends of the loop to battery terminals.
Once electricity flows through your simple circuit, you will notice that your loop “moves”. So why does this happen? The magnetic field of the magnets interferes with that produced due to electric current flowing in the conductor. Since the loop has become a magnet, one side of it will be attracted to the north pole of the magnet and the other to the south pole. This causes the loop to continuously rotate. This is the principle of working of electric motor.
2. If the ball has a velocity of 2.3 m/s, how long does it take it to go 1.1 m?
s
Answer:
2 seconds lol im just a kid but I know these lol who has tiktok