Surface tension=75N/m
Weight=300N
What two sysrems of a rabbit's body must be working together to run away?
1 answer:
You might be interested in
One of the components that affect the period is gravity (the other is length). This gravity is basically the value of the effective acceleration that acts on the body due to gravity. When the elevator is over free fall, the effective gravity becomes zero. Mathematically this can be visualized as,
Since this value is zero, the period would tend to be infinite,
Therefore the frequency that is inversely proportional to the period would be defined as
In this way there is no frequency on the body which will not generate any oscillation on the body
Answer:
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed= Joules
m= mass of copper = 454 g
c = specific heat capacity =
Initial temperature of the copper = = 23.0°C
Final temperature of the water = = ?
Change in temperature ,
Putting in the values, we get:
The final temperature of copper will be
Answer:
Explanation:
From Newton's law of motion, Force is equal to rate of change of momentum.
The initial velocity of the ball, u = 4.1 m/s
mass of the ball, m = 0.07 kg
During contact, velocity = 0
Time of contact, t = 72 ms = 72 × 10⁻³ s
Thus, net force applied to the ball during this collision is