Answer:
The relative velocity of the boy with respect to the sea is 37.7 km/hr
Explanation:
Answer:
37.7 km/hr I'd the velocity
The y-axis of a position-time graph represents
What is the energy of an object because of its potential and kinetic energies?
chemical energy
electrical energy
nuclear energy
mechanical energy
Answer:
It is D
Explanation:
mechanical
Answer:
it is D on edge
Explanation:
Find the acceleration of a car with a mass of 1,200kg and a force of 11,000N
Answer:
42000N
Explanation:
.........................
Which information did the Glomar Challenger study in 1968?
Answer:
c
Explanation:
i took the test
what is the magnitude acceleration of a body in a projectile motion at the highest point
Answer:
Zero
Explanation:
At a projectile's highest point, its velocity is zero. At a projectile's highest point, its acceleration is zero
Which property describes the number of waves that move past a point each second.
A) Speed
B) Frequency
C) Period
D) Wavelength
Answer:B) Frequency
Explanation:
Answer:
B) Frequency
Explanation:
protons are present in sodium atom.
a 11
b 10
C 12
d 9
11
Explanation:
There are 11 protons in a sodium atom
Which of the following is an accurate description of synaptic pruning?
Answer options:
A) Some connections are lost because critical stages of development were missed.
B) Some connections are lost so others can be strengthened.
C) Some connections are lost because of experimentation with drugs or alcohol.
D) Some connections are lost so that children become less dependent and are less tied to their parents.
Answer:
B) Some connections are lost so others can be strengthened.
Explanation:
Synaptic pruning refers to a natural process that occurs in the brain between childhood and adulthood. Extra synaptic connections are eliminated in order to increase the efficiency of neuronal communications. It is thought to be the brain’s way of removing connections that are no longer needed.
How does the magnetic field created by the liquid outer core protect the Earth?
Answer:
The magnetic field protects the Earth from harmful particles that come from the Sun.
The cart in the figure is moving toward the right with a speed increasing at 3 m/s?. By what angle does the accelerometer deflect?
the answer is D) 17
i just took the quiz
What is the term given to telecommunications networks?
a. Telespace
b. Teleport
c. Communications net
d. Cyberspace
Answer:
c
Explanation:
i think communication net
The term given to telecommunication networks is Cyberspace. The correct option is d.
What is telecommunication network?Telecommunications network, an electronic network of links and switches, as well as the controls that govern their operation, that enables data transfer and exchange between multiple users. network of communication
A telecommunications network is a collection of nodes linked together by telecommunications links that allow the nodes to exchange messages.
To transmit messages and signals, the links may employ a variety of technologies based on circuit switching, message switching, or packet switching methodologies.
The Internet, telecommunications networks, computer systems, and embedded processors and controllers are all part of a global domain within the information environment. Telecommunication networks are referred to as Cyberspace.
Thus, the correct option is d.
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You are given a sample of metal and asked to determine its specific heat. You weight the sample and find that its weight is 28.4n.Ypu carefully add of heat heat energy to he sample and find that its temperature rises.Ehat is the samples specific heat?
Answer:
The samples specific heat is 14.8 J/kg.K
Explanation:
Given that,
Weight = 28.4 N
Suppose, heat energy [tex]E=1.25\times10^{4}\ J[/tex]
Temperature = 18°C
We need to calculate the samples specific heat
Using formula of specific heat
[tex]Q=mc\Delta T[/tex]
[tex]c=\dfrac{Q}{m\Delta T}[/tex]
Where, m = mass
c = specific heat
[tex]\Delta T[/tex] = temperature
Q = heat
Put the value into the formula
[tex]c=\dfrac{1.25\times10^{4}}{\dfrac{28.4}{9.8}\times(18+273)}[/tex]
[tex]c=14.8\ J/kg. K[/tex]
Hence, The samples specific heat is 14.8 J/kg.K
Answer:240 gradpoint
Explanation:
A dog is 60 m away while moving at a constant velocity of 10 m/s towards you. How Long will it be before the dog is close enough to your face?
Answer:
6 seconds
Explanation:
The answer is 6 because if the dog is going 10 m/s it will take 6 seconds to get from 60 meters away to you.
Who am I answer key
Answer:
huh
Explanation:
A car accelerates from 1.5 to 18 m/sec in 9.6 seconds. Calculate its acceleration. and the other one is During a race, you speed up from 2.2 m/sec to 4 m/sec in 3.2 seconds. (a) What is your change in speed? ____ m/sec (b) What is your acceleration? ___ m/sec2
Answer:
(1) The acceleration is 1.72 m/s²
(2) (a) The change in speed is 1.8 m/s
(2) (b) The acceleration is 0.563 m/s²
Explanation:
(1)
Given;
initial velocity, u = 1.5 m/s
final velocity, v = 18 m/s
time of motion, t = 9.6 s
The acceleration is given by;
a = (v - u) / t
a = (18 - 1.5) / 9.6
a = 1.72 m/s²
(2)
Given;
initial speed, u = 2.2 m/s
final speed, v = 4 m/s
time of motion, t = 3.2 s
(a) The change in speed is given by;
Δv = v - u
Δv = 4 m/s - 2.2 m/s
Δv = 1.8 m/s
(b) the acceleration is given by;
a = Δv / t
a = 1.8 / 3.2
a = 0.563 m/s²
how is kinetic energy is stored
Answer:
Explanation:
Kinetic energy can be stored. For example, it takes work to lift a weight and place it on a shelf or to compress a spring. ... Kinetic energy can also be transferred from one body to another in a collision, which can be elastic or inelastic. One example of an elastic collision would be one billiard ball striking another.
Explanation:
Kinetic energy can be stored. For example, it takes work to lift a weight and place it on a shelf or to compress a spring. ... Kinetic energy can also be transferred from one body to another in a collision, which can be elastic or inelastic. One example of an elastic collision would be one billiard ball striking another.
Which of these is a characteristic of climate
Answer:
No picture
Explanation:
can we add 2 atoms together? 3? How do particles combine to form the variety of matter one observes?
List two objects here on Earth that are sources of radiant energy. How can you tell they emit radiant energy?
4. Which of the following statements is correct?
A Mass and weight are different names for the same thing
B The mass of an object is different if the object is taken to the Moon
C The weight of a cer is one of the forces acting on the car.
D The weight of a chocolate beris measured in kilograms
Answer:
Explanation:
A: wrong. Mass and weight are different.
B: Wrong. The mass here and the mass on the moon are the same. The weight, which is Mass * the acceleration is equal to weight.
C: Correct.
D: Wrong. Weight is not measured in Kg. Mass is.
true for false; "Acceleration is inversely proportional to mass."
Answer:
True
Explanation:
F = ma
We can rearrange to a = F/m
So if we increase a and F is constant, then m has to decrease because it is in the denominator.
A cyclist rides at a velocity if 12m/s.if the cyclist deceleates a rate of 1.5m/s.how long will take her to reach a velocity of 3m/s?
1)identify your variables -what is what ?
2)pick your equation
3)plug in and solve
Answer:
t=6s
Explanation:
v=3m/s
u=12m/s
a=-1.5ms-²
t=?
v=u+at
3=12+(-1.5)t
3-12=-1.5t
t=3-12/-1.5
t=6s
I am not sure if me is correct.
Theo is learning about sensation and perception. He is familiar with the five senses. He knows that the human sensory systems send information to the brain through the cranial nerves, but one sensory system sends information to the brain through the spinal nerves as well. Theo will recall which of our sensory systems can also send information to the brain through the spinal nerves? Select one: a. Taste b. Vision c. Hearing d. Touch
Answer:
Touch ( D )
Explanation:
The sense of touch can send information to the brain via the spinal cord and also in some cases the information sent by the sense of touch can as well be processed via the spinal cord
The Touch sensory system is made up of sense receptors which carry the information to be sent to the Central nervous system which the brain and the spinal cord is an essential part
giving brainlist
fill in the blank
Gear trains balance and
I will report you if needed so don't make a stupid reply
Answer:
spin the weals on the train
Explanation:
what does the galaxy made of ?
In order to see inside atoms, they are broken apart with high speed
neutrons or electrons ?
Answer:
i think its electrons
Explanation:
During a family car trip, a family travels for 1 hour at 70 miles per hour. Then the family travels for 2 more hours at 55 miles per hour. What is the family's average speed during the trip?
A. 58.5 mph
B. 65 mph
C. 62.5 mph
D. 60 mph
Answer:
60 mph
Explanation:
Answer:
D. 60 mph
Explanation:
A-P-E-X
What are the 8 types of energy? SOMEONE PLEASE PLEASE HELP
thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy and gravitational energy
The eight types of energy are Kinetic Energy, Potential Energy, Thermal Energy, Chemical Energy, Electrical Energy, Radiant Energy, Nuclear Energy, and Sound Energy.
The eight types of energy are:
Kinetic Energy: The energy possessed by an object due to its motion.
Potential Energy: The energy stored in an object based on its position or condition.
Thermal Energy: The energy associated with the motion of particles in a substance. It is related to temperature.
Chemical Energy: The energy stored in the bonds of chemical compounds.
Electrical Energy: The energy associated with the movement of electric charges.
Radiant Energy: The energy carried by electromagnetic waves, such as light or radio waves.
Nuclear Energy: The energy released or absorbed during nuclear reactions or radioactive decay.
Sound Energy: The energy produced by the vibration of objects and transmitted through a medium as sound waves.
These are the commonly recognized types of energy. It's important to note that energy can often be converted from one form to another.
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HURRY! Please!
How do the lights in a series circuit behave when one bulb burns out?
O The rest of the bulbs continue to shine at maximum brightness.
OThe rest of the bulbs continue to shine at a lower brightness.
OThe rest of the bulbs continue to shine at a higher brightness
OThe rest of the bulbs stop shining and shut off.
Answer:
D. The rest of the bulbs stop shining and shut off.
Explanation:
When one bulb in a series circuit burns, out, the rest of the bulbs stop shining and shut off. Option D is correct.
What is an electric bulb?
An electric bulb is a gadget that uses electricity to create visible light. It is the most popular type of artificial lighting and is necessary for modern society.
The light bulb is connected to a switch in a parallel configuration. The switch is open, which means there will be a lot of resistance and no current will flow via this route.
Across the parallel connection, the battery would create the same potential difference. Because the current would not go via the open switch, it would instead flow through the light bulb, causing it to illuminate.
When one bulb in a series circuit burns, out, the rest of the bulbs stop shining and shut off.
Hence, option D is correct.
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I would appreciate the help
Two classmates, Aisha and Brandon, want to attend two school activities
over the coming weekend. They have one parking pass between them. The
probabilities that the classmates will attend each event are shown in the
table.
Alsha
Brandon
0.65
0.94
Probability of attending
the Saturday activity
Probability of attending
the Sunday activity
0.80
0.43
They decide to let the person more likely to attend both events have the
parking pass. Assuming that attendance at one activity is independent of
attendance at the other, who is more likely to attend both activities?
A. Brandon. He has a 0.40 probability of attending both activities
O B. Brandon. He has a 0.69 probability of attending both activities
C. Aisha. She has a 0.52 probability of attending both activities.
Answer:
The answer is D.
Explanation: