Answers
Answer:
Distance = 1.2 km (Approx)
Explanation:
Given:
Temperature (T) = 30°C
Total Time taken (t) = 3.4 Sec
We know that sound increases in the air sound increase nearly 0.60 m/s for every sound with temperature.
Speed of sound = 331 m/s
So,
V = (331 + 0.60T) m/s
V = 331+(0.60×300C) m/s
V = 349 m/s
Distance = speed × time
Distance = 349 × 3.4
Distance = 1,186.6 m
Distance = 1.2 km (Approx)
Related Questions
Where is the near point of an normal eye when accidentally wear a contact lens with a power of +2.0 diopters?
Information that is easily converted into numbers and is stored as a on and off signals is _____ information.
If Earth were completely blanketed with clouds and we couldn’t see the sky, could we learn about the realm beyond the clouds? What forms of radiation might penetrate the clouds and reach the ground?
Tonya picks up a leaf from the ground and holds it at arm’s length. She lets go, and the leaf falls to the ground. What force pulled the leaf to the ground?
Answers
The reflected beam experienced a phase change of about 180°.
What is reflection in the glass surface?
According to Snell's law, the light that incident on the glass surface will be reflected and transmitted at an angle equals to the angle of incidence.
By the observation of refractive index of the glass for the normal incidence only 4% of the light is transmitted or reflected.
The light passing through glass is not only reflected on the front surface, but also on the back. For several times the light will gets reflected back and forth. So, the total reflectance through a glass window can be calculated as
2·R / (1+R).
Thus, A light wave travelling in air is reflected by a glass barrier will undergo a phase change of 180°, while light travelling in glass will not undergo a phase change if it is reflected by a boundary with air.
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Answer:
180 degree phase change
Explanation:
Answers
La altura vertical máxima alcanzada es de 31,88 m.
Tenemos la siguiente información de la pregunta;
Velocidad inicial = 25 m/s
Velocidad final = 0 m/s (a la altura máxima)
tiempo empleado = 3,5 minutos (el tiempo empleado para subir y bajar es igual).
Usando la ecuación;
v^2 = u^2 - 2gh
Dado que v = 0
u^2 = 2gh
h = tu^2/2g
h = (25)^2/2 *9.8
h = 31,88 m
Obtenga más información sobre las ecuaciones de movimiento: brainly.com/question/8898885
The subject of this question is kinematics. The ball reached a height of 65.1 meters.
To determine the height that the ball reached, we can use the kinematic equation for vertical motion:
Final height = Initial height + Initial vertical velocity * Time + (1/2) * Acceleration * Time^2
In this case, the initial height is the height of the building, the initial vertical velocity is 25 m/s, the time is 7 seconds, and the acceleration is -9.8 m/s^2. Plugging in these values, we get:
Final height = 0 + 25 * 7 + (1/2) * (-9.8) * 7^2 = 0 + 175 - 240.1 = -65.1.
Since the ball is at ground level, the height it reached is the negative of the calculated value, so the correct answer is 65.1 m.
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Answers
Answer:
178.75 N
Explanation:
The force necessary to start moving the crate must be equal to or more than the frictional force (resistive force) acting on the crate but moving in an opposite direction to the frictional force.
So, we find the frictional force, Fr:
Fr = -μmg
Where μ = coefficient of friction
m = mass
g = acceleration due to gravity
The frictional force is negative because it acts against the direction of motion of the crate.
Fr = -0.57 * 32 * 9.8
Fr = - 178.75 N
Hence, the force necessary to move the crate must be at least equal to but opposite in direction to this frictional force.
Therefore, this force is 178.75 N
Answers
Answer:
carbon isnt 12
Explanation:
Answers
Given :
A 5-kg moving at 6 m/s collided with a 1-kg ball at rest.
The ball bounce off each other and the second ball moves in the same direction as the first ball at 10 m/sec.
To Find :
The velocity of the first ball after the collision.
Solution :
We know, by conservation of momentum :
Putting all given values with directions ( one side +ve and other side -ve ).
Therefore, the velocity of first ball after the collision is 4 m/s after in opposite direction.
Hence, this is the required solution.
Stress built up in a rock fault
Heat given off by a forest fire
Water flowing through a hose
Answers
Answer:
B
Explanation:
stress built up on a rock fault