Answer:A7.50kg object is hung from the bottom end of a vertical spring fastened to an overhead beam. The object is set into vertical oscillations having a period of2.30s. Find the force constant of the spring.

N/m

Explanation:

5 0

3 years ago

In a parallel circuit with 3 resistors, the output voltage at the power supply is recorded to be 5 A. The current flowing thro

Bogdan [553]

In a parallel circuit, the total power supply current is the sum of the
currents through all of the individual branches.

The output current (not the voltage) of the power supply is 5 A.
So the individual currents in the circuit branches is 5 A.

The current through the first 2 resistors is (1 + 0.5) = 1.5 A.

So the current through the 3rd resistor is (5 - 1.5) = <u>3.5 A</u>.

8 0

4 years ago

The pressure exerted by a liquid column of depth 0.5 m on the base of its

Alik [6]

Answer:

1020.4kg/m³

35m³

Explanation:

Given parameters:

Depth = 0.5m

Pressure exerted = 5000N/m²

Unknown = density of the liquid = ?

Solution:

To find the density of this unknown liquid, we use the expression below:

Pressure of liquid = density x height x acceleration due to gravity

5000 = density x 0.5 x 9.8

Density = 1020.4kg/m³

Density of water = 1000kg/m³

Mass of water = 35000kg

Unknown:

Volume of water = ?

Solution:

The volume of water can be derived from the expression below:

Volume = $\frac{mass}{density}$

Volume = $\frac{35000}{1000}$ = 35m³

4 0

3 years ago