Part a a calorimeter consists of an aluminum cup inside of an insulated container. The cup is weighed on a top-loading balance a
1 answer:
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Answer: 2.4 km/hr
Explanation:
Distance = 600m
Time= 15 minutes = 15 x 60 second/minute = 900 seconds
Speed = =
=
m/sec
⇒ x
= 2.4 km/hr (1 m/sec = 3.6 km/hr)
Solution :
Mass is varied keeping frequency constant.
Wavelength, λ
where length of spring = l
number of segments = n
Velocity, v = λ x f
=
= mass density, T = tension in string
, n = 2
Therefore, μ = 0.002785 kg/ m
Frequency is varied keeping T constant
f = 210 Hz
Answer:
V = 20m/s
Explanation:
Given the following data;
Acceleration = 4m/s²
Time = 10 secs
Initial velocity = 0m/s (since it's at rest).
To find the average velocity, we would use the first equation of motion;
Where;
V is the final velocity.
U is the initial velocity.
a is the acceleration.
t is the time measured in seconds.
Substituting into the equation, we have;
V = 0 + 4*10
V = 40m/s
To find the average velocity;
Average velocity = (U + V)/2
Average velocity = (0 + 40)/2
Average velocity = 40/2
Average velocity = 20m/s
Answer:
0.3847 m/s
Explanation:
= Intensity =
d = Diameter = 20 cm
r = Radius =
c = Speed of light =
s = Distance = 100 m
P = Power = 22 MW
Pressure due to the laser is given by
Force is given by
Acceleration is given by
Speed of the block would be
The speed of the block is 0.3847 m/s