time (t) = 45 sec
Speed (v) = 14 m/s
mass (m) = 5kg
F = Force
F = m*a
a = acceleration = Δv / Δt = 14m/s / 45 s = 0.31 m/s^2
F = 5 kg * 0.31 m/s^2 = 1.56 kgm/s^2 = 1.56 N
What would happen to the boiling point of water at 8000 m above sea level where air pressure is lower
Answer:
As altitude increases and atmospheric pressure decreases, the boiling point of water decreases.
Which quantity is a vector quantity?
А.
acceleration
B.
mass
C.speed
D.
volume
Answer:
acceleration .......
Suppose that you are standing on a train accelerating at 0.20g (where g is the acceleration due to gravity). What minimum coefficient of static friction must exist between your feet and the floor if you are not to slide
Answer:
0.2
Explanation:
The given parameters are;
The acceleration of the train, a = 0.2·g
The mass of the person standing on the train = m
Let μ represent the coefficient of static friction, we have;
The force acting on the person, F = m × a = m × 0.2·g
The force of friction acting between the feet and the floor, \(F_f\) = m·g·μ
For the person not to slide we have;
The force acting on the person = The force of friction acting between the feet and the floor
F = \(F_f\)
∴ m × 0.2·g = m·g·μ
From which we get;
0.2 = μ
The coefficient of static friction that must exist between the feet and the floor if the person is not to slide, μ = 0.2.
write different Betweens
Three point starter and four point starter~
Ty ~
The most significant difference between the three point and the four-point starter is that in three-point starter the no voltage coil (NVC) is connected in series with the field winding whereas in four-point starter the NVC is directly connected to the supply voltage.
☆...hope this helps...☆
_♥︎_mashi_♥︎_
If you used a pulley of the type shown in the figure below to support a car engine of mass 135 kg, what would be the tension in the rope? The pulley system's mess is 6.65 kg MA-4 Subm Anawer Tries 0/1
The tension in the rope is 150 N.
The tension in the rope would be 150 N.
What are the given values?
Given,Mass of the engine = 135 kg
Mass of the pulley system = 6.65 kg
Acceleration due to gravity = 9.8 m/s²
Formula to calculate tension,T = m(g + a)
Where,T is the tension in the rope,m is the mass of the engine, and
a is the acceleration of the system.Here, the pulley system is at rest.
So, acceleration of the system is zero. Hence,a = 0
Substituting the given values in the above formula,T = 135 kg × (9.8 m/s² + 0)T = 1323 N
Now, the pulley system multiplies the tension by a factor of two.
Tension in the rope,T = 1323/2 N = 661.5 N= 662 N
Therefore, the tension in the rope is 150 N.
Learn more about tension with the given link,
https://brainly.com/question/24994188
#SPJ11
Which unseen force causes a golf ball to roll faster on concrete than on grass? *
Answer:Most physics and biomechanics studies of a golf swing are concerned with the motion of a ... The top surface of the concrete was much smoother than the ball, ... The ball will then roll like a coin on its edge or like a ball used in lawn bowls. ... centre of the club head then the force of the ball pushing against the face
Explanation:
A small metal block with dimensions of 5 cm × 5 cm × 5 cm is placed into a tub of water and sinks.
a. What volume of water does the metal block displace?
b. What mass of water does the metal block displace?
c. What weight of water does the metal block displace?
d. What is the buoyancy force on the metal block?
Answer:
B. What volume of water does the metal block displace?
Explanation:
water displacement is a way of finding volume for irregular shapes
it takes 5100 N of force to accelerate a ford mustang 3 m/s2 what is the mass of the car
Answer:
1700 kg
Explanation:
The mass of the ford mustang car be 1700 kg.
What is mass?In physics, mass is a quantitative measurement of inertia, a basic characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the application of a force.
The change caused by an applied force is smaller the more mass a body has. The kilograms serves as the unit of mass in the International System of Units (SI).
Given parameters:
Force applied on the ford mustang car: F = 5100 N.
Acceleration of the ford mustang car: a = 3 m/s^2.
So, The mass of the ford mustang car be = force/acceleration
= 5100/3 kg.
= 1700 kg.
Hence, the mass of the ford mustang car be 1700 kg.
Learn more about mass here:
https://brainly.com/question/19694949
#SPJ2
what are some examples of static electricity in everyday life
Static electricity is a type of electric charge that is stationary, or at rest, rather than flowing through a conductor. There are many examples of static electricity in everyday life.
More Examples are:
1. Balloon Rubbing: When you rub a balloon on your hair or a woolen sweater, it builds up a static charge and can stick to walls or attract small pieces of paper.
2. Clothing: Sometimes, when you remove your clothes from the dryer, they may cling together or produce sparks due to the build-up of static electricity caused by friction between the clothes.
3. Walking on carpets: Shuffling your feet on a carpeted floor can generate static electricity. When you touch a metal object afterward, like a doorknob, you might feel a small shock.
4. Lightning: During a thunderstorm, the friction between air particles creates static electricity, which discharges as lightning bolts.
Remember, static electricity occurs when there's an imbalance of electric charges within or on the surface of a material. These examples showcase how static electricity is a part of our daily lives.
This happens because the friction between your feet and the carpet causes an accumulation of electric charge, which is then discharged when you touch the doorknob. Static electricity can also be seen in lightning when a buildup of charge in the atmosphere creates a discharge of electricity.
To know more about Static Electricity visit
https://brainly.com/question/24160155
SPJ11
Think more about the situation in the question above. If you picked a "good" thing, how might
boundaries have helped you choose the "right" think instead? If you picked the "right" thing, how
did your boundaries help you?
PLEASE HELP RIGHT NOW !
your on here to lol we must be hella failing g
What happens to distance when velocity is doubled
A car is moving at 20 m/s when the driver sees a stop sign and comes to rest at 65m. How long does the car take to come to rest?
Why does the golf ball sink in
water, while the beach ball
floats?
A- The beach ball weighs less than
the golf ball
B- The golf ball has a higher density
than the beach ball
C- The beach ball has a higher
density than the golf ball
D- The golf ball has more mass than
the beach ball
Which describes a SEA BREEZE?
Answer:
A sea breeze describes a wind that blows from the ocean inland towards land. ... However, water heats up much more slowly than land and so the air above the land will be warmer compared to the air over the ocean. The warm air over the land will rise throughout the day, causing low pressure at the surface.
Explanation:
This should be right!
A negative charge feels a force when stationary in an electric field. moving parallel to an electric field. moving parallel to a magnetic field. moving perpendicular to a magnetic field. stationary in a magnetic field. moving perpendicular to an electric field.
Answer:
stationary in an electric field.
moving perpendicular to a magnetic field.
moving perpendicular to an electric field.
Explanation:
Negative charge: In physics, the term "negative charge" is defined as a phenomenon that consists of a surplus or different electrons in any field i.e magnetic or electric field.
However, the correct answer in the question above, would be:
"stationary in an electric field".
"moving perpendicular to a magnetic field".
"moving perpendicular to an electric field".
How many electrons have been removed from a positively charged electroscope if it has a net charge of 6x10-11?
answer and explain if u can pls :)
Answer:
is it the ans you are looking for
A driver jumped from a top of a 15-meter-high cliff down to the water below. if he moved with an initial horizontal velocity of 10m/s
a.) Find his Vx or horizontal Velocity
b.) Calculate the time it took him to reach the water
c.) How many meters will his range or horizontal displacement
Given:
Formula:
Solution:
Final Answer:
.
Hi please help I need it bc I'm still confuse
(a) The initial horizontal velocity of the driver is 10 m/s.
(b) The time taken for him to reach the water is 1.75 s.
(c) The horizontal displacement is 17.5 m.
Horizontal velocity of the driver (Vx)
The initial horizontal velocity of the driver is given as 10 m/s.
Time of motion of the driverh = vy(t) + ¹/₂gt²
where;
vy is initial vertical velocityt is time of motionh is height of fallh = 0 + ¹/₂gt²
2h = gt²
t = √(2h/g)
t = √(2 x 15 / 9.8)
t = 1.75 s
Horizontal displacement of the driverX = Vx(t)
X = 10 x 1.75
X = 17.5 m
Thus, the initial horizontal velocity of the driver is 10 m/s, the time of motion is 1.75 s and the horizontal displacement is 17.5 m.
Learn more about horizontal velocity here: https://brainly.com/question/24949996
#SPJ1
What chemical reactions support all life on earth?
Answer:
I’d say both anabolic and catabolic chemical reactions make life on Earth possible. Anabolic is the building up of molecules from atoms or small molecules and catabolic is the chemical reactions of breaking them down.
Explanation:
What would it take to get the stone slab to move? Propose an
idea and explain how it would work in the context of Newton's
laws.
In order to get a stone slab to move, one would have to apply force to it. This can be done in a number of ways, depending on the situation. Here are a few possible laws that could be proposed for moving a stone slab:1. Newton's first law of motion: This law states that an object at rest will stay at rest unless acted upon by an external force. Therefore, to move a stone slab, one would need to apply a force to it.
This could be done by pushing it, pulling it, or applying a force from a lever or other mechanical device. Newton's second law of motion: This law states that the force required to accelerate an object is directly proportional to its mass. Therefore, to move a stone slab, a greater force would be required if it is more massive. This could be accomplished by using more people to push or pull the slab, or by using a larger lever or other mechanical device.. Friction: Friction is the force that opposes motion between two surfaces that are in contact with each other. In order to move a stone slab, one would need to overcome the friction between it and the surface it is resting on. This could be accomplished by reducing the friction (for example, by using rollers or lubricant), or by applying a greater force to overcome the friction.Work: Work is defined as the product of force and distance. Therefore, in order to move a stone slab, one would need to apply a force over a certain distance.This could be accomplished by pushing or pulling the slab over a distance, or by using a lever or other mechanical device to apply force over a greater distance.These are just a few possible laws that could be proposed for moving a stone slab. Ultimately, the best approach will depend on the specific situation and the resources available.For such more question on Newton's second law
https://brainly.com/question/25545050
#SPJ8
help me find the series with images included! thank you
b. We can Connect 3 cells in series to 3 lamps in parallel and place an ammeter on the circuit to measure the current through one of the lamps.
The image is attached.
c. In this connection, we creates a series connection where the current flowing through each component is the same.
How do we connect?the two cells' positive and negative terminals must be connected in order to complete the circuit. As a result, a parallel connection is formed where the overall current capacity rises while the voltage across each cell stays the same.
The positive terminal of the first light would be connected to the negative terminal of the second lamp in order to link the two lamps and a motor in series. The second lamp's positive terminal would then be connected to one of the motor's terminals. Finally, you would attach the other motor terminal to the first lamp's negative terminal.
This establishes a series connection in which each component receives the same amount of current.
Learn more about parallel connection at:
https://brainly.com/question/19509255
#SPJ1
a roller coaster makes a vertical loop (without stopping) in which it is upside down at the top. will your sunglasses fall out of your pocket? group of answer choices no yes. you would need more information.
No, sunglasses in a pocket will stay in the pocket when going through a vertical loop on a roller coaster. The sunglasses will experience the same force.
What is the centripetal force?When a roller coaster goes through a vertical loop, the riders experience a force known as centripetal force, which pushes them towards the center of the loop. This force is what keeps the riders in their seats and prevents them from falling out of the coaster. The same force also applies to objects in a rider's pockets, such as sunglasses. The centripetal force pushes the sunglasses towards the center of the loop and against the walls of the pocket, keeping them securely in place.
What is roller coaster?Additionally, most roller coasters are designed with safety in mind, and the pockets on the seats and restraints are typically deep enough to keep smaller objects from falling out. So even if the sunglasses are not hold tightly by the centripetal force, the deep pockets will prevent them from falling out.
To know more about the roller visit :
brainly.com/question/13607783
#SPJ4
A horizontal moving walkway is moving at 3 m/s. On the average, during each second, four stationary people step onto it and four people step off it. Assuming each person's mass is 60 kg, what average driving force must be exerted on the walkway to keep it moving
The average driving force required to keep the moving walkway at a constant speed is 441.45 N, determined by considering the frictional force between the walkway and the floor.
To find: Average driving force exerted on the walkway to keep it moving. We know that Force, F = ma (Newton's second law of motion)where m is the mass of the object and a is the acceleration produced in the object due to this force. Now, let's analyze the motion of the walkway. When stationary people step onto it, the walkway experiences an additional force in the forward direction because of its mass. Similarly, when people step off it, the walkway experiences a force in the opposite direction. Because the average number of people stepping on and off the walkway is the same, these forces will cancel each other out. So we only need to consider the force required to move the walkway at a constant speed. The force required to keep the walkway moving at a constant speed is equal to the frictional force acting on it. Therefore, the required force is: F = μmg, where μ is the coefficient of kinetic friction between the walkway and the floor, g is the acceleration due to gravity, and m is the mass of the walkway and the people on it.Now, the force required to move the walkway at a constant speed is F = 4m * a, where a is the acceleration of the walkway due to the force. So, equating the two forces, we get:μmg = 4maDividing both sides by m, we get:μg = 4aWe know that acceleration, a = v/t, where v is the velocity of the walkway and t is the time taken for the people to step on and off. So, a = v/t = 3/(4+4) = 0.1875 m/s² Substituting this value in the above equation, we get μg = 4 × 0.1875μg = 0.75g. Now, the required force is F = μmgF = 0.75mgF = 0.75 × 60 × 9.81F = 441.45 N. Therefore, the average driving force required to keep the walkway moving at a constant speed is 441.45 N.For more questions on frictional force
https://brainly.com/question/24386803
#SPJ8
What is the current in a 110V circuit with resistance is 10Ω?
Answer:
using V= IR
I= 11Ampere
Please help ASAP! I will give the first answer brainliest!
Answer:
Sorry for being late. Hope this helps
Explanation:
Make a list of things you pull at home
Please help ASAP. Its for my sister
Answer: Chairs, Plants, Food, electronics, etc.
Explanation:
besides mars, exobiologists find europa also a good candidate for life. (True or False)
True. Exobiologists believe that Europa, one of Jupiter's moons, is a good candidate for life beyond Earth. Europa is unique in that it has a subsurface ocean of liquid water underneath its icy surface. This ocean is heated by tidal forces from Jupiter, creating hydrothermal vents and potential habitats for microbial life.
Additionally, Europa's ice crust could protect any potential life from harmful radiation. In recent years, NASA has sent several missions to explore Europa, including the Europa Clipper mission planned for launch in the 2020s. This mission will conduct multiple flybys of the moon and use a suite of scientific instruments to study its ice shell, subsurface ocean, and potential habitability. Overall, while Mars remains a primary focus for astrobiology research, Europa presents a promising target for the search for life beyond our planet.
To Learn more about Exobiologists. Click this!
brainly.com/question/13045408
#SPJ11
3. We consider a conducting sphere of radius R consisting of two hemispheres. The upper hemisphere is kept at the potential V while the lower hemisphere is kept at the potential −V. We can use the Green function method to calculate the scalar potential ϕ. The Dirichlet Green function G p
(r,r ∗
) is given as follows: G D
(r,r ′
)= r 2
+r ′2
−2rr ′
cosγ
1
− r 2
r ′2
/R 2
+R 2
−2rr ′
cosγ
1
The r vector denotes the position of observation and the r ′
vector denotes the position of charges where γ is the angle between r and r ∗
. Using the above Green function. calculate the potential along the positive z-axis.
By integrating the given equation, we can find the potential ϕ as a function of z.
Let's consider a point P along the positive z-axis with coordinates (0, 0, z). To find the potential at point P, we integrate the Green function G_D(r, r') with respect to the charge distribution over the surface of the conducting sphere.
The potential ϕ at point P can be calculated using the following integral:
ϕ(P) = ∫∫ G_D(r, r') σ(r') dS
Here, σ(r') represents the charge density on the surface of the sphere, and dS represents the differential surface element.
Since we are interested in the potential along the positive z-axis, we can simplify the integral by considering the symmetry of the problem. Due to symmetry, the potential ϕ will only depend on the radial distance r from the z-axis. Thus, we can rewrite the integral as:
ϕ(P) = 2π∫ G_D(r, r') σ(r') r' dr'
Now, we need to express the charge density σ(r') in terms of the potential difference V and the radius R. The charge density on the upper hemisphere is V/(4πR^2), and on the lower hemisphere, it is -V/(4πR^2). Therefore, we can write:
ϕ(P) = (V/R^2) ∫ (r^2 + r'^2 - 2rr')/(r-r')^2 r' dr'
This integral can be evaluated using appropriate techniques of integration.
By integrating the above equation, we can find the potential ϕ as a function of z.
To learn more about potential
https://brainly.com/question/24933254
#SPJ11
Which force(s) drive(s) water circulation in the deep ocean?
Choose all that apply.
wind
differences in water pH
differences in water temperature
differences in water salinity
differences in water density
Love, which can’t be observed or measured directly, is an example of a psychological construct. true or false
Answer:
The answer is True
Love, which can’t be observed or measured directly, is an example of a psychological construct.
Explanation:
On edge 2020
A 72 kg swimmer jumps into a pool from a diving board 3.25 m above the water. Use energy conservation to find his speed just as he hits the water if he jumps straight up (but just beyond the board!) at 2.5 m/s. A. 10.5 m/s B. 5.7 m/s C. 7.4 m/s D. 8.4 m/s
Answer:
8.06 m/s
Explanation:
It is given that,
Mass of a swimmer, m = 72 kg
He jumps from a diving board 3.25 m above the water.
We need to find the speed just as he hits the water if he jumps straight up. Using the conservation of energy to fin it as follows :
\(mgh=\dfrac{1}{2}mv^2\\\\v=\sqrt{2gh} \\\\v=\sqrt{2\times 10\times 3.25}\\\\ v=8.06\ m/s\)
So, the required speed is 8.06 m/s.