Change 95 km/hr to m/sec
(1000 * 95) / 3600 = 26.39 m/sec
(26.39 - 0) / 6.2 = 4.246 m/sec^2
The average acceleration in meters per second square is 4.2563 meters/second².
What is acceleration?The rate at which velocity varies with time in terms of both speed and direction is referred to as acceleration.
Given that a sports car accelerates from rest to 95 km/h in 6.2 sec. Therefore, we can write,
Time = 6.2 seconds
Initial Velocity = 0 m/sec
Final Velocity = 95 km/hr
= 95 km/hr × (1000 meter / 3600 second)
= 26.3889 meter /second
Now, the average acceleration in meter per second square can be written as,
Acceleration = (Final velocity - Initial velocity)/ time
= (26.3889 meter /second - 0 meter /second) / 6.2 second
= 4.2563 meter/second²
Hence, the average acceleration in meters per second square is 4.2563 meters/second².
Learn more about Acceleration here:
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2. A flywheel speeds up uniformly from rest to 900 rpm in 2 minutes. A) Find the angular
acceleration. B) Find the tangential acceleration of the rim if the flywheel has a 0.5 m radius.
Answer:
A) 450 B)3.5
Explanation:
The atmospheric pressure is 1 ATM.What does it mean?
Answer: the atmospheric pressure is generally expressed in terms of the height of the mercury column.at normal temperature and pressure, the barometric height is 760mm at sea level which is taken as one atmosphere. thus atmospheric pressure is also expressed in a unit atmosphere where 1 atm= 0.76m of hg. 9
Brainliest if right.
Show your work: A wolf chasing an elk. The wolf has a mass of 100 kg and is running with a velocity of 16 m/s
to the right. What is the wolf's momentum?
The elk has a mass of 180 kg. What does the elk's speed have to be for it to have the same momentum as the
wolf?
Answer:
The momentum of the wolf is 1600 kg×m/s
the velocity of the elk is 80/9 m/s
Explanation:
I have provided an explanation on the photo attached.
Your car battery is a 12 V DC source. Typically you might find a fuse that can handle a 5 amp surge. What resistance is that fuse protecting?
Answer:
2.4 ohms
Explanation:
From the question,
Applying ohm's law,
V = IR.................... Equation 1
Where V = Voltage of the car battery, I = current, R = resistance
Make R the subject of the equation
R = V/I.................. Equation 2
Given: V = 12 V, I = 5 amp.
Substitute these values into equation 2
R = 12/5
R = 2.4 ohms
The foghorn blast from a big ship is a very loud sound . What is the best example of a very high pitched sound
Answer:
Whistle
Explanation:
High pitched sound is a type of sound that has a high-frequency sound wave or outstanding pitch than other sounds in the area of observation.
There are various examples of high pitch sound, some of them include:
Nails scratching on the blackboard, School bell, Rubber shoes squeaking against a basketball court, Fireworks.
The most common high pitch sound and usually the best example is WHISTLE.
What type of friction must
these boaters overcome to
move their boat through the
water?
A. Static
B. Fluid
C. Sliding
17. A train is travelling at a speed of 90 km/h.
Brakes are applied, so as to produce a
uniform acceleration of -0.5 m/s2. Find how
far the train will go before it is brought to rest?
Pg 110
Answer:
x = 625 m
Explanation:
To solve this exercise we use the kinematics relations
v² = v₀² - 2 a x
indicate that the train stops therefore its final speed is zero (v = 0)
0 = v₀² - 2a x
x = [tex]\frac{v_o^2}{2a}[/tex]
let's slow down to the SI system
v₀ = 90 km / h (1000 m / 1km) (1h / 3600 s) = 25 m / s
let's calculate
x = [tex]\frac{25^2}{2 \ 0.5}[/tex]
x = 625 m
What voltage will produce 3 A through a circuit that has 15 ohms of resistance?
GIVEN: FORMULA:
REQUIRED: SUBSTITUTE & SOLVE:
A. 45 V
B. 5 V
C. 45 A
D. 0.2 V
Answer:
formual is
V = IR
V = 3*15
V= 45 V
hope it helps
On his way to school, a student starts out walking quickly and then slows down as he gets closer to the school. Which graph best
represents his motion?
A
B
C
D
' A ' is the graph that shows it.
What is the best definition of solar radiation?(giving brainliest)
-Storing of energy in Earth's oceans
-Energy from the Sun that reaches Earth
-Moisture and heat energy in the atmosphere
-Increased evaporation due to warm water
120 J of work was done to lift an object 6 m above
the ground. How much force was applied to this
object and what was its mass?
Select one:
120 N, 5 kg
O
20 N, 3.04 kg
O
720 N, 12.3 kg
O 20 N, 2.04 kg
Answer:
The last option, 20 N and 2.04 kg
Explanation:
work = (force)(distance)
work = 120 joules
distance: 6 m
rearrange to find force:
120=(6)F
F= 120/6 = 20 Newtons.
Assuming its lifted from Earth's surface, the force of gravity will be 9.81 m/s^2. Let's find mass:
F=mg
m=F/g
m=(20)/(9.81)= 2.038 kg
Suppose that two objects attract each other with a gravitational force of 50N. If the mass
of both objects was tripled, and if the distance between the objects was doubled, then what
would be the new force of attraction between the two objects?
Answer:
F' = 112.5 N
Explanation:
The force of gravitation between two objects is given by Newton's Law of Gravitation as follows:
[tex]F = \frac{Gm_{1}m_{2}}{r^2}\\[/tex]______________ equation (1)
where,
F = Force = 50 N
G = universal gravitational constant
m₁ = mass of the first object
m₂ = mass of the second object
r = distance between objects
Now, the masses of each object are tripled and the distance between them is doubled:
m₁' = 3m₁
m₂' = 3m₂
r' = 2r
Hence, the new force will be:
[tex]F' = \frac{G(3m_{1})(3m_{2})}{(2r)^2}\\\\F' = \frac{9}{4}\frac{Gm_{1}m_{2}}{r^2}[/tex]
using equation (1), we get:
F' = 2.25 F = 2.25(50 N)
F' = 112.5 N
the brain can retain the impression of the image of an object for 1/20of a second even when the image is no longer in front of the eyes .
plz tell me whether it is true or false
Please help me : What braking force is needed to stop a 1,000-kilogram car moving at 10m/s on a time of 1 seconds?
Identify the process shown in the given picture A and B and differentiate between the two processes.
please give answer fast
some sports or activities you can do to improve your overall health and how physical activity can improve your
physical and emotional health.
Answer:
some sports activities you can yo to improve your over all heath is running and how it can improve your emotional and physical heath is that it will get you heart beat up which will help you lose weight and make you feel better and how it can help your emotional health is that it can help you feel less stress mad angry and a bunch of other things
Explanation:
( the part were it says it will help lose weight is optional
a sound effect balloon is
Answer:
Hey mate...
Explanation:
This is ur answer...
A balloon sound effect is pop or bang....
hope it helps you,
Follow me
Answer:
Popping sound
Explanation:
It gives a pop sound when it blows off
(1/10) ^2 +(1.6) (2.1)
Answer:
3.37
Explanation:
hope it helps pls give brainlist
A dog exerts a force of 30N to move a wagon 2m in 5s. What is the power of the dog
Explanation:
power=f×v. recall= distances/ time
= f× d/t
= 30 × 2/5
=12watt
Ice is made of water so why does it float?
Answer:Its a Soild
Explanation:
What does mosquito larvae breathe out of
Answer:
Mosquito Larve commonly called wigglers live in water from 4 to 14 days depending on water temperature
Valerie and Greg want to bake a cake. They mix the cake batter and preheat the oven. Once the oven reaches the right temperature, they pour the batter in a cake pan, put it in the oven, and close the door. They know that while the cake is in the oven, a chemical change that involves energy occurs. Which of these statements describes the amount of energy in the oven while the cake is baking?
Answer: They know that while the cake is in the oven, a chemical change that involves energy occurs.
Explanation:
The total amount of energy stays the same, but it changes from one form to another. The correct option is D.
What is law of conservation of energy?According to the rule of conservation of energy, energy can only be transformed from one form of energy to another and cannot be created or destroyed.
This indicates that unless energy is added from the outside, a system always has the same quantity of energy.
The law of conservation of energy, which is found in physics and chemistry, stipulates that the total energy of an isolated system stays constant over time.
Greg and Valerie want to make a cake. They prepare the oven and mix the cake mixture. They are aware that a chemical shift involving energy takes place while the cake is baking.
Energy shifts from one form to another, yet its overall amount remains constant.
Thus, the correct option is D.
For more details regarding law of conservation of energy, visit:
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A. The total amount of energy will either increase or decrease, depending on how much cake batter there is.
B. The total amount of energy increases because the oven gets very hot.
C. The total amount of energy decreases because it changes into matter.
D. The total amount of energy stays the same, but it changes from one form to another.
Explain you could use a battery, wire and compass to
determine whether or not the right hand rule works.
ASSAP PLEASE
Answer:
oh I'm so sorry I can't answer your question it has been a long time since I learned that. so I totally forgot how to do this. sorry!
A 86g ball is dropped vertically to the floor from a height of 2.87m and bounces to a height of 1.28. What is the magnitude of the impulse received by the ball from the floor during the bounce
Answer:
The impulse received by the ball from the floor during the bounce is approximately 1.11329438 m·kg/s
Explanation:
The given mass of the ball, m = 86 g = 0.089 kg
The height from which the ball is dropped, H = 2.87 m
The height to which the ball bounces, h = 1.28 m
Mathematically, we have;
Δp = F·Δt
Where;
Δp = The change in momentum = m·Δv
F = The applied force
Δt = The time of contact with the force
The velocity of the ball just before it touches the ground, v₁ = -√(2·g·H)
The velocity with which the ball leaves, v₂ = √(2·g·h)
The change in momentum, Δp = m·(v₂ - v₁)
∴ Δp = m·(√(2·g·h) - (-√(2·g·H))) = m·(√(2·g·h) +√(2·g·H) )
The impulse, Δp, received by the ball from the floor during the bounce is given as follows;
Δp = 0.089 kg × (√(2 × 9.8 m/s² × 1.28 m) + √(2 × 9.8 m/s² × 2.87 m)) ≈ 1.11329438 m·kg/s
The impulse received by the ball from the floor during the bounce, Δp ≈ 1.11329438 m·kg/s
The energy needed to melt a solid is know as the lantern heat of...
Answer:
Lantern heat of fusion.
Explanation:
The energy needed to melt a solid is know as the lantern heat of fusion.
Calculate the charge that flows through the cell in 1 minute. Each filament lamp has a power of 3 W and a resistance of 12 Ω
Answer:
24 Coulumbs
Explanation:
Given data
time= 1 minute= 6 seconds
P=2 W
R= 12 ohm
We know that
P= I^2R
P/R= I^2
2/12= I^2
I^2= 0.166
I= √0.166
I= 0.4 amps
We know also that
Q= It
substitute
Q= 0.4*60
Q= 24 Columbs
Hence the charge is 24 Coulumbs
Answer:
30C
Explanation:
its basically how the other guy did it but he worked it out with 2W instead of 3W so he got it wrong so its 30C and not 24C
How is Venus similar to Earth?
Both have the same day length.
Both rotate in the same direction.
Both have ample water on their surfaces.
Both have a solid inner core and a liquid outer core.
Answer: D
Explanation: I have my answers VS. Go0gle answers (go0gle answers are pics)
(A) Both have the same day length. Well, Venus doesn't havve the same amount of days. (I already know off the top of my head, but I still searched it up)
(B) Both rotate in the same direction. In school (before Virus) they would always show diagrams of the planets on the projector and Venus doesn't rotate
(C) Both have ample water. No. Venus doesn't have much water >_>
(D) Both have a solid inner core and a liquid outer core. Yesh. In my lessons (before), Venus has a solid inner core and liquid outer core.
ANSWER AND I WILL BUY A CAR
If you were to Push on a brick wall with 100 Newtons of force, how much would the wall push back towards you?
10. Bites of some animals can cause
sprain
tetanus
rables
Answer:
an infection, including bacterial and rabies infections.
broken animal teeth embedded in your wound.
foreign objects embedded in your wound.
possible nerve and blood vessel damage.
what is fundamental interval
The difference between the values recorded in the thermometer at two fixed points known as Fundamental interval.