Jaký tlak vyvoláme ve vodě ve válcové nádobě s pístem, když na píst o obsahu průřezu 4 cm2 působíme silou 16 N. Výsledek uveď v kPa. Odpověz: Je tlak ve všech místech nádoby stejný?

1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?

How does changing the frequency affect the energy of the wave?

3. a particle with initial velocity v⃗ 0=(5.85×103m/s)j^ enters a region of uniform electric and magnetic fields. the magnetic field in the region is b⃗ =−(1.35t)k^. you can ignore the weight of the particle. a. calculate the magnitude of the electric field in the region if the particle is to pass through undeflected, for a particle of charge +0.640 nc.