An ammeter should be connected in series with the resistor to measure the current through it. If it is connected in parallel, its low resistance would cause a short circuit.
A voltmeter should be connected in parallel with the resistor to measure the voltage across it. If connected in series, its high resistance would cause no current to flow and thus it would show a very small or no reading.
Answer:
Speed of the spaceship = 1.92 x 10∧8 m/s
Explanation:
The solution is in the attach document.
Answer:
k1 + k2
Explanation:
Spring 1 has spring constant k1
Spring 2 has spring constant k2
After being applied by the same force, it is clearly mentioned that spring are extended by the same amount i.e. extension of spring 1 is equal to extension of spring 2.
x1 = x2
Since the force exerted to each spring might be different, let's assume F1 for spring 1 and F2 for spring 2. Hence the equations of spring constant for both springs are
k1 = F1/x -> F1 =k1*x
k2 = F2/x -> F2 =k2*x
While F = F1 + F2
Substitute equation of F1 and F2 into the equation of sum of forces
F = F1 + F2
F = k1*x + k2*x
= x(k1 + k2)
Note that this is applicable because both spring have the same extension of x (I repeat, EXTENTION, not length of the spring)
Considering the general equation of spring forces (Hooke's Law) F = kx,
The effective spring constant for the system is k1 + k2
It should be S since S stands for students. Giving the team with more members the upper hand. Hope this helps.