Answer:
Aceleración media = 0.5 m/s²
Explanation:
Dados los siguientes datos;
Velocidad inicial = 15 m/s
Velocidad final = 20 m/s
Tiempo, t = 10 segundos
Para encontrar la aceleración;
Aceleración se puede definir como la tasa de cambio de la velocidad de un objeto con respecto al tiempo.
Esto simplemente significa que la aceleración viene dada por la resta de la velocidad inicial de la velocidad final a lo largo del tiempo.
Por lo tanto, si restamos la velocidad inicial de la velocidad final y la dividimos por el tiempo, podemos calcular la aceleración de un objeto. Matemáticamente, la aceleración viene dada por la fórmula;
[tex] Aceleracion = \frac{final \; velocidad - inicial \; velocidad}{tiempo}[/tex]
Sustituyendo en la fórmula, tenemos;
[tex] Aceleracion = \frac{20 - 15}{10}[/tex]
[tex] Aceleracion = \frac{5}{10}[/tex]
Aceleracion = 0.5 m/s²
Por tanto, la aceleración media es igual a 0.5 metros por segundo al cuadrado.
There is a bell at the top of a tower that is 95 m high. The mass of the bell is 21 kg. What is the potential energy of the bell?
Answer:
19,551 J!
Explanation:
The formula is PE = ham (h=height, a= acceleration or 9.8, m= mass)
PE = (95)(9.8)(21)
PE = 19,551 Joules
What is the smallest height needed to make a wave?
A
6 feet
B
90 millimeters
C
20 millimeters
D
any height
the answer for this question is 6 feet
A wave can be made at any magnitude of amplitude. Therefore, the smallest height needed to make a wave is at any height. The correct answer is option D
A wave is a disturbance which travels through a medium transferring energy from one point to another without causing any permanent displacement of the medium.
The height needed by a wave is its amplitude. We can define amplitude as the maximum displacement of wave from original position.
A wave can be made at any magnitude of amplitude. Therefore, the smallest height needed to make a wave is at any height.
The correct answer is option D
Learn more here : https://brainly.com/question/446219
(v) Which of the following is incorrect statement?
(a) A concave mirror can form a magnified virtual image.
(b) A convex mirror can form a magnified real image.
(c) A concave mirror can form a diminished real image.
(d) A convex mirror can form a diminished virtual image.
Answer:
(b) A convex mirror can form a magnified real image.
Explanation:
A convex mirror only forms diminished/highly diminished, virtual and erect image.
Hope it helps.
HELP ME ASAP PLZZZZ!!!!!!!!!!! In which reaction are the atoms of elements rearranged?
A.) Two isotopes of hydorgen fuse to form heluim
B.) A neutron fuses with plutonium-239
C.) Uranium-235 breaks apart into krypton
D.) Sodium combines with chlorine to form sodium chloride
Answer:
D.
Explanation:
Answer:
C. sodium combines with chlorine to form sodium chloride
Explanation:
Select three possible applications of a capacitor. Select all that apply.
- electrical test meter
- camera flash
- computer battery
- motor starter
Answer:
I'm pretty sure it's all of them i'm not completely sure though hope it helps anyways! :)
which is a dopant for a p-type semiconductor?
a. arsenic
b. indium
c. phosphorus
d. antimony
A 50 n force is acting on a lever 1.5 m from the fulcrum balances an object 1m from the fulcrum on the other arm. what is the weight of the object in n and what is the mass in kg
Answer:
A 100 N force acting on a lever 2 m from the fulcrum balances an object 0.5 m from the fulcrum on. ... What is the weight of the object(in newtons)? What is its mass (in kg)? ... mass at the one end and effort arm is the distance between pivot and effort applied at the other end.
Explanation:
hpoe this helps you.
. What is the energy of an object if the height is 20 m and the mass is 2kg?
A stationary, 32 kilogram ice skater catches a 0.5 kilogram snowball thrown at a speed of 45 meters per second. The collision is totally inelastic. How fast, in meters per second, does the skater (and snowball) move afterward? Friction of the skater on the ice is negligible.
Answer:
V = 0.69 m/s
Explanation:
Given that,
The mass of a ice skater, m₁ = 32 kg
The initial speed of the ice skater, u₁ = 0
Mass of a snowball, m₂ = 0.5 kg
The initial speed of a snowball, u₂ = 45 m/s
eIt is mentioned that the collision is totally inelastic. Let V be the common speed of skater and the ball. So, using the law of conservation of momentum.
[tex]m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{m_1+m_2}\\\\V=\dfrac{32\times 0+0.5\times 45}{32+0.5}\\\\V=0.69\ m/s[/tex]
So, the common speed is equal to 0.69 m/s.
Generators convert mechanical energy to electrical energy by using _________.
Answer:
Magnetic Induction.
Explanation:
That be your answer.
why do racing cars have wider wheels?
Answer:
So they can last longer and have more grip than normal on-road cars. They need that in order for them to run well
Explanation:
Answer:
Sports cars have large wheels to provide better road traction and grip. Since most sports cars are intended for racing around the track and doing high speed cornering maneuvers, the added stability increases your confidence to go faster. Slapping on new, larger wheels also enhances the overall look of your sports car.
Explanation:
Hello Mate, Here's your answer...
Please answer ASAP!
According to Newton's First Law (the Law of Inertia) -
Group of answer choices
when you kick a soccer ball, the ball pushes back against your foot.
when you hit a baseball, the bat can vibrate your hands.
when you push a shopping cart that is still, or at rest, it rolls forward.
when you lean back against a chair, the chair pushes back against your back.
Answer:
Letter C
Explanation:
That is newton's first law
The density of a substance can be found with the help of:
simplify
3+7b+2+2b
I need to learn how to simplify please
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Answer:
Let's simplify step-by-step.
3 + 7b + 2 + 2b
Combine Like Terms:
= 3 + 7b + 2 + 2b
= ( 7b + 2b ) + ( 3 + 2 )
= 9b + 5
Answer:
= 9b + 5
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
in series connection if one lamp is off the rest will be off
true or false. pls answer fast
Answer:
yes I think
Explanation:
because lamp is connected to eac other
A 5kg bowling ball is rolling with 75kg*m/s. How fast is it going?
Answer:
you are going 1 mile per hour depending on how fast
Explanation:
F4
30. CHALLENGE A disk with a moment of inertia
of 0.26 kg ma is attached to a smaller disk
mounted on the same axle. The smaller disk has
a diameter of 0.180 m and a mass of 2.5 kg.
A strap is wrapped around the smaller disk,
as shown in Figure 14. Find the force needed
to give this system an angular acceleration of
2.57 rad/s?
Answer:
7.42 N
Explanation:
We know that:
τ = Iα = rF
Variables:
I = 0.26 kgm^2
α = 2.57 rad/s^2
r = 0.18m/2 = 0.09m
Solve:
τ = Iα = rF
τ = (0.26kgm^2) (2.57rad/s^2) = (0.09m) * F
F = 7.42 N
Mark brainliest if this helped!
Help me please please
answer a makes the most sense.
hope this helps
In the nuclear equation:
222 86 Radon becomes 4 2 Helium plus blank.
The characteristics of the missing particle are ________________.
Z = 84, A = 220
Z = 88, A = 218
Z = 84, A = 218
Z = 85, A = 220
Answer:
C
Explanation:
Z = 84, A = 218
trust, got a 100 :)
What would a series circuit be used for?
A. to power a battery
B. to light a lamp
C. as a voltage divider
D. convert chemical energy to thermal energy
Answer:
C
Explanation:
a series circuit would be an odd choice to power a battery or light a lamp when a direct would be much more efficient, and it's not converting types of energy, so C is the best possible answer
how many pounds is a 1 pound rock?
Answer: 1 pound.
Explanation:
Answer:
1 pound
Explanation:
1 pound = 0.453592 kilograms
0.453592 kilograms = 1 pound
A 1 pound rock weighs 1 pound.
In a race, a car travels 60 times around a 3.6km track. This takes 2.4 hours. What is the average speed of the car?
Answer:
multiply
Explanation:
multiply
Answer:
90km/h
Explanation:
While traveling north on an expressway, a car traveling 60 mph (miles per hour) slows down to 30 mph in 12 minutes
due to traffic conditions. Calculate the acceleration.
Answer:
the acceleration is 2.5 MPH over 12 mins.
Explanation:
30 MPH in 12 minutes=
30/12=
2.5
What does the force of gravity do for us?
Answer:
Earth's gravity is what keeps you on the ground and what makes things fall. Anything that has mass also has gravity. Objects with more mass have more gravity.
Explanation:
pls help will mark brainliest
Which of the following electrical components is a temporary electrical energy storage device?
- Capacitor
- Transistor
- Resistor
- Fuse
Answer:
A capacitor
Explanation:
Because it can store electric energy when disconnected from its charging circuit. Commonly used in electronic devices to maintain power supply while batteries change.
Hope this helps! :)
what is a variable that gives location relative to an origin?
Answer:
The position variable gives location relative to an origin.
Explanation:
Position (displacement) gives location relative to an origin, but distance does not.
Can an object have both kinetic energy and gravitational potential energy? Explain.
Please help help pls :::
Answer:
radio since they use radio telescopes.
We know the role of Sun in our solar system and its importance to life on Earth. What would have happened if the Sun were bigger or smaller than it is now?
Answer:
If for any reason the Sun shrank smaller than the Earth, this shrunken Sun wouldn't have the mass to create fusion and would burn out completely. Our solar system would lose its only star. ... Earth's mass would be at least 333,000 times bigger than it is now. Imagine the gravity that planet would have.
Explanation: