The right answer is "3600 N"
Answer explanation:
First, calculate the change in momentum:
change in momentum = mass × velocity
Substitute in values: change in momentum
= 60 kg × 30 m/s = 1,800 kg m/s
Then, calculate the force absorbed by the seatbelt:
force = change in momentum / time taken
Substitute in values:
force = 1,800 kg m/s / 0.5 s = 3,600 N
Hope it helps ✨✨
The lower the efficiency of a ____, the ______ the percentage of energy that is degraded tp _____ energy.
Answer:
Machine; greater; thermal.
Explanation:
Conduction can be defined as the transfer of electric charge or thermal energy as a result of the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction while when it relates to thermal energy, it is known as heat conduction.
In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles. Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.
Mathematically, the efficiency of a machine is given by the formula;
[tex] Efficiency = \frac {Mechanical \; advantage}{Velocity \; ratio} * 100 [/tex]
Hence, the lower the efficiency of a machine, the greater the percentage of energy that is degraded to thermal energy. We experience inefficiency in machines due to the fact that energy are being transformed or converted from one form to another.
Camina con otro compañero, al mismo tiempo y al mismo paso. Quién se mueve tú o tu compañero? Razona tu respuesta
Answer:
Fricción.
Explicación:
Caminando con otro compañero al mismo tiempo y al mismo ritmo, el movimiento se produce debido a la fricción del suelo y la suela de los zapatos porque la fricción es la fuerza que ayuda en el movimiento de los objetos de un lugar a otro. Si no hay fricción entre el suelo y la suela de los zapatos, no podemos dar un paso por lo que podemos decir que la fricción nos mueve hacia adelante.
An electric motor is used to lift a load. When 7000 J of electrical energy are supplied to the motor the load gains 3100 J of gravitational potential energy. The amount of wasted energy by the motor is
Answer:
W = 3900 J
Explanation:
Given that,
Electrical energy supplied = 7000 J
Gain in gravitational potential energy = 3100 J
We need to find the amount of wasted energy. Let it is W. So,
W = 7000 J - 3100 J
= 3900 J
So, the amount of wasted energy by the motor is 3900 J.
List the 3 formulas for Speed, Distance, and Time
11. Improvement on communication skill is a
A. Social Benefits
B. Emotional Benefits
C. Mental Benefits
D. Physical Benefits
12. Reducing anxiety, depression, and negative mood.
A. Social Benefits
B. Emotional Benefits
C. Mental Benefits
D. Physical Benefits
13. Have stronger bones, muscles and joint and lower risk of developing osteoporosis.
A. Social Benefits
B. Emotional Benefits
C. Mental Benefits
D. Physical Benefits
Answer:
11.A
12.C
13.D
Explanation:
12.might be emotional benefits but they are often associated with our mental health , which is why I gave the answer C . its up to u now
plzzzzz help me promise will mark you brainiest
Answer:
c. 300 J
Explanation:
Given
Power (p) = 10 W
Time (t) = 0.5 minutes = 30 seconds
Energy (E) = ?
We know
p = E/t
10 = E / 30
E = 300 Joule
A 100 N force is applied to a pulley to lift a 500 N object. What is the actual mechanical advantage of the pulley?
Please help, I'm tired of trolls.
How many atoms are in 3MgCl2?
Answer:
3MgCl2 has 9 atoms.
Explanation:
The Element Magnesium (Mg) has 3 atoms.
The Element Chloride (Cl) has 6 attoms.
Their fore 6 + 3 is 9 of course. 3MgCl2 has 9 atoms.
BTW: 3MgCl2 is a molecular compound as well as H2O and CO2.
i need major help !
Write a hypothesis for a way to make a wave disappear.
Answer:
A new theoretical design using nanowires provides a way to hide ... But to make things truly disappear before our eyes, a way will need to be ...
Shh! Computer simulations predict that certain materials could allow sound waves to pass by undisturbed, effectively making them acoustically ...
Explanation:
5. Aunt Jane weighs 145 pounds. What is her weight in Newtons?
Answer:
i think its 644
Explanation:
A cart with an initial velocity of 5.0 m/s experiences a constant acceleration of 2.0 m/s2. What is the cart's displacement during the first 6.0 s of its motion? *
Why is it not suitable to determine the volume of an irregular charcoal using displacement method
Answer:
Displacement method of volume measurement is no suitable
Explanation:
Displacement method of volume measurement is no suitable for the objects that do not get immersed into the water completely because of the hindrance in accuracy of the measurement.
A student observes a model of two bonded atoms. She is told that both atoms are nonmetals. Which of the following is a valid conclusion?
A. The student is looking at a model of atoms held together by a covalent bond.
B. The student is looking at a model of a metalloid.
C. The student is looking at a model of a crystal lattice.
D. The student is looking at a model of atoms held together by an ionic bond.
Answer:A
Explanation: it’s a covalent bond plus i just took mines
PLS HELP
1.) When there are equal forces from opposite directions acting on an object, the forces are said to be which of the following? (4 points)
A.) Positive
B.) Negative
C.) Balanced
D.) Gravitational
2.) If you want to cause an object to move, what should you do? (4 points)
A.) Apply balanced forces.
B.) Apply neutral forces.
C.) Apply potential forces
D.) Apply unbalanced forces.
Answer:
B
Explanation:
What is "Motion?"
Any physical movement or change of position of an object
When an object is square
When An object is standing still
[tex] \\ [/tex]
In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time. One can also speak of motion of images, shapes, and boundaries.
Movement of any object from one position to another position with respect to the observer is called as Motion. Motion Along a Straight Line: When an object moves along a straight line, the motion of the object is called rectilinear motion. For example; motion of a car on highway.
In physics, motion is the change in position of an object with respect to its surroundings in a given interval of time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, and speed. An object's motion cannot change unless it is acted upon by a force.
[tex] \\ [/tex]
Hope It Helps!
What power will be required to raised a 1500kg beam to height of 14 meters in 10 minutes.
[tex] \mathcal{PLEASE \: \: HELP}[/tex]
Answer:
343 wattsExplanation:
m = 1500 kgg = 9.8 m/s²h = 14 mt = 10 min = 600 sPower = mgh/t
= 1500 * 9.8 * 14 / 600 = 343 watts
Answer:
Power = 343 watts
Explanation:
The formula we use,
→ P = (m × g × h)/t
Then the required power will be,
→ P = (m × g × h)/t
→ P = (1500 × 9.8 × 14)/600
→ P = 205800/600
→ [ P = 343 watts ]
Hence, the answer is 343 watts.
Two magnets are arranged so that they pull together. Which conclusion can be reached? A.Two north poles are together. B. Two south poles are together. C. The poles of the magnets are touching. D. A north pole is near a south pole.
Answer:
Answer is D. a north pole is near a south pole
Explanation:
Hope this helps!! :D
what is the couple force
Explanation:
a couple is a system of forces with a resultant moment but no resultant force. A better term is force couple or pure moment. Its effect is to create rotation without translation, or more generally without any acceleration of the centre of mass.
How many calories would you take in if you ate the whole box of crackers in one sitting ?
Answer:
i'm pretty sure it's 81 calories
How does temperature affect Brownian motion
Answer:
Explanation:
Temperature is the measure of average kinetic energy or energy in motion in a molecules. Brownian motion measure kinetic energy or how energetic the motion is and it is proportional to temperature.
Therefore, an increase in Temperature will bring about increase in kinetic energy of brownian motion. It will speed it up.
Mechanical efficiency is a comparison of a machines work output with the work input. True or False?
Paco was driving his scooter west with an initial velocity of 4 m/s. He accelerates at 0.5 m/s2 for 30 seconds.
What is his final velocity?
2 m/s
8 m/s
19 m/s
60 m/s
Answer:
V = 19m/s
Explanation:
Given the following data;
Initial velocity, U = 4m/s
Acceleration, a = 0.5m/s²
Time, t = 30 seconds
To find the final velocity, we would use the first equation of motion;
V = U + at
Where;
V is the final velocity.
U is the initial velocity.
a is the acceleration.
t is the time measured in seconds.
V = 4 + 0.5*30
V = 4 + 15
V = 19m/s
Therefore, his final velocity is 19 meters per seconds.
Answer:
its C)19
Explanation:
If an element forms a 2+ ion, in which group of the periodic table would you expect to find it? A. 2 B. 1 O c. 17 D. 18
Answer:
A
Explanation:
It would be with the group 2 metals.
PLEASE HELP ILL GIVE CROWN!!!!
What region receives the least amount of direct sunlight?
A ) High latitudes (Polar Region)
B ) Middle latitudes ( Temperate Region )
C ) Low latitudes ( Tropical Region )
D ) Low and Middle latitudes
Answer:
A)
Explanation:
The lowest latitudes get the most energy from the sun. The highest latitudes get the least.
Answer: A
Explanation:
Mr. Bennet's class completed an investigation on magnetism. They found that most metals were attracted to magnets and plastics were not. What will happen if Mr.
Bennet's class repeats the investigation?
A most metails would be attracted to magnets and plastics would not.
B plastics would be attracted to magnets and metals would not.
C both metals and plastics would be attracted to magnets.
D neither metals nor plastics would be attracted to magnets.
Answer:
A
Explanation:
Pushing a shopping cart is what type of friction
Parked car is what type of friction
Which is most impacted when transforming solar energy into electricity?
land use
air quality
water quality
weather conditions
Answer:
weather conditions
Explanation:
hi I hope it's help you
help me please its due in ten minutes
Answer:
relative age
Explanation:
i remember this test
please help me .........................
Answer:
Dog2 has most kinetic energy .
B:324j
Pleas answer if you want brainliest I need help fast
Nolan is making a capacitor using plates that have an area of 3.2 × 10–4 m2 separated by a distance of 0.20 mm. He has the two dielectrics listed in the table.
table:
dielectirc 1= dielectric constant 6.8
dielectric 2= dielectric constant 1.5
At a voltage of 1.5 V, how much more charge can Nolan store in the capacitor using dielectric 1 than he could store using dielectric 2?
answer choices:
7.5 × 10^–11 C
9.6 × 10^–11 C
1.1 × 10^–10 C
1.4 × 10^–10 C
Answer: 1.1 x 10^-10 C
Explanation:
Answer:
1.1 x 10^-10 C
Explanation:
on edg 21