Answer:
-4,651.42N
Explanation:
Since we are not asked what to find, we can calculate the force applied by the track as shown;
F = ma
F = m(v-u)/t
Substitute the given value
F = 4400(7.6-52)/42
F = 4400(-44.4)/42
F = -4,651.43N
Hence the required force is -4,651.42N
The gravitational force between two masses act along the line that connects the two masses and it is an attractive force. The value of this force is directly proportional with the values of the two masses [m_1] and [m_2] and inversely proportional with the square of the distance between the two objects.
[F = G*(m_1*m_2)/R^2]
Here above G is the gravitational constant.
With the values given in the problem text one has
[F = 6.67*10^-11*(70*2000)/1^2...]
Answer: This is because water has a higher Specific Heat Capacity than air.
Explanation:
The specific heat capacity of an object measures how much heat will be required to change its temperature.
Water has a higher specific heat capacity than air, so the temperature of the water will remain fairly constant even though the air surrounding the water is experience temperature changes.
Since air has a lower Specific Heat Capacity than water, heat from the sun will readily heat it up in comparison to water.
Answer:
0.000140530327543 s
Explanation:
V = Voltage = 1.5 V
r = Resistance = 
c = Capacitance = 
Initial current
Time constant
The current is
The elapsed time is 0.000140530327543 s
