Heat required to raise the temperature of mercury is given as
here given that
m = 56 g
s = specific heat capacity of mercury = 0.140 J/g C
now here we have
so it required 2265.76 J of heat
Answer:Newton’s first law can be explained in terms of inertia because running players due to their momentum have inertia
Explanation:
As football players have speed and mass due to which they carry inertia .A football player has to overcome this inertia by applying net force
Answer:
It depends on the amount of pressure needed to cut your material. Metal is a tougher material to cut though, so the blades must be shorter to create more pressure to break through the metal. Cloth on the other hand is easier to cut through so the blades can be longer in order to cut more in each snip.
Answer:
(a): The cyclist is behind the car.
(b): The speed of the car are Vf= 31.97 m/s.
Explanation:
f= 440 Hz
f'= 415 Hz
Vo= 1/3 Vf
Vf= ?
V= 343.2 m/s
f'= f* ( (V-(-Vo) / (V-(-Vf) )
clearing Vf
:
Vf= 31.97 m/s
Vo= 10.65 m/s
