In most cases the temperature must increase for thermal expansion to occur. Most substances expand as temperature increases because the atoms or molecules vibrate faster as temperature increases and experience greater separation.
Answer:
5 Pascals
Explanation:
Pressure is equal to force/area and the area is 60cm to m is 0.6m. Then the area is 0.6m×5m=3m^2. which gives a pressure of 15N/3m^2=5Pa
Answer:
It Is 25J greater.
Explanation:
Applying the Energy conservation theorem, we have:
The Work done by the ice worker is given by:
The angle is 180 degrees because the force exerted by the worker is opposite to the motion.
If the rope was not there, the external work is 0, so:
The kinetic energy is 25J greater without the rope.
Answer:
El avión recorrió 45 km en los 180 s.
Explanation:
La relación entre velocidad, distancia y tiempo se da de la siguiente manera;
Por lo cual los parámetros dados son los siguientes;
Velocidad = 900 km/h = 250 m / s
Tiempo = 180 s
Estamos obligados a calcular la distancia recorrida
De la ecuación para la velocidad dada arriba, tenemos;
Distancia recorrida = Velocidad pf viaje × Tiempo de viaje
Distancia recorrida = 900 km/h × 180 s = 900
Distancia recorrida = 900 km/h × 1 h/60 min × 1 min/60 s × 180 s = 45 km
Por lo tanto, el avión viajó 45 km en 180 s.
Electric field between the plates of capacitor is given by
potential difference between the plates of capacitor is given by
so above two parameters will depend on the charge of capacitor
rest we know that capacitance of capacitor is given as
so it is independent of charge
so correct answer will be
<em>The electric field across the plates. </em>
<em>The potential across the plates.</em>