Answer:
The mass of the block of ice is 90.91 kg.
Explanation:
The expression for the equation of motion is as follows;
Here, u is the initial speed, a is the acceleration, t is the time and s is the distance.
Calculate the acceleration of the given block.
Put t= 5 s, s= 11 m and u= 0 in the above expression.
The expression for the force in terms of mass and acceleration is as follows;
F= ma
Here, F is the force and m is the mass.
Put F= 80 N and .
80= m(0.88)
m=90.91 kg
Therefore, the mass of the block of ice is 90.91 kg.
Answer:
Explanation:
The gravitational potential at a point on the Earth surface is given by:
where
G=6.67×10^-11Nm^2kg^-2 is the gravitational constant
M=5.98×10^24kg is the Earth's mass
R=6.38×10^6 m is the Earth's radius
Substituting the numbers into the equation, we find
The bending of light as it passes into a transparent material of different optical intensity is known as refraction. The correct option among all the options given in the question is option "C".It can never be
reflection as reflection is the bouncing of the light from a surface and so
option “A” can easily be negated. The last option or option
“D”<span> conversion and it mean converting something to
another and that means a total change of form. So the last option should also
be negated. The second option can also be negated.</span>
Answer:
34.35464 m/s
Explanation:
q = Charge of electron =
E = Electric field = 0.08 N/C
s = Displacement =
m = Mass of electron =
Electrical force is given by
Work done is given by
Work done is also given by the kinetic energy
The velocity of the electron is 34.35464 m/s
Answer:V₁=300ml
T₁=27°C
V₂=?
T₂= -3°C
as we know
V₁T₁=V₂T₂
By putting values in formula
300ml×27°C=V₂×(-3°C)
300ml×27°C/-3°C=V₂
8100ml/-3=V₂
-2700ml=V₂
or V₂= -2700ml