Answer:
E cinetica = 140.24 [J] "unidades en Joules"
Explanation:
Para poder solucionar este problema debemos tener un dato aproximado de la masa de la pelota de beisbol, ya que en el problema este dato no fue dado, realizamos una busqueda por internet y encontramos que la masa de una pelota de beisbol es de aproximadamente m = 142 [gr].
Datos iniciales:
m = masa = 0.142 [kg]
v = velocidad = 160 [km/h]
debemos convertir de kilómetros por hora a metros por segundo.
Sabemos que la energia cinetica se define por medio de la siguiente ecuacion:
Answer:
Explanation:
Given
de Broglie wavelength = 0.20nm
Required
Determine the speed (v)
The speed is calculated using the following formula;
Where
Substitute these values in the above formula
-----------------------------------------------------
Convert 0.2nm to metre (m)
-----------------------------------------------------
Multiply both sides by v
Apply law of indices
Divide both sides by
Apply law of indices
Hence;
The velocity is
Answer: By squeezing the balloon, you reduce the space the gas particles can occupy. As the particles are pushed a bit closer together, they collide with more, so the pressure from the moving gas particles increases. If the volume increases, its pressure decreases.
<h2>
Answer:5
,133.6
,51.18
</h2>
Explanation:
Let , be the horizontal and vertical components of velocity.
Question a:
Horizontal component of velocity is the ratio of range and time of flight.
So,horizontal component of velocity is
So,
Question b:
Time of flight=
So,
Maximum height is given by
So,maximum height is
Question c:
The vertical velocity is already calculated in Question b.
Taking a bath, water at 40°C is required . calculate the mass of cold Water at 15°C which is to be added to 60 kg water at 100°C for bathing purpose