For the first question, make a question that is quantifiable
or can be counted. This can be anything, as long as its quantifiable, like "How many species of trees are in this certain area?" While for the second it can be a question that can is more
qualitative and are more open-ended questions, example, “What are the
contaminants present in this water sample”

**Answer:**

**tension is 37.8 N **

**Explanation:**

given data

mass of bar m1 = 2 kg

length of bar L = 1.4 m

suspended mass m2 = 5 kg

suspended object position length L2 = 0.8 m

to find out

tension

solution

we consider here bar is connected with hinge and

we know here system is equilibrium

so here net torque will be zero at joint

and mass 2 kg act at L1 = 1.4 /2 = 0.7 m

so torque = m1×g× ( L1 ) + m2 ×g× (L2) - T(L)

so

2 ×9.8 × ( 1.4/2) + 5×9.8 × ( 0.8) - T(1.4) = 0

T = 52.98 / 1.4

T = 37.8

**so tension is 37.8 N **

1. Dump the container out.

2. Sift the large items out until the sugar and gravel is by itself.

3. Continue separating the other items.

**Answer:**

Current that flows through any one of the resistors has a value of 12 amperes.

**Explanation:**

When a group of resistors are connected in series, the same current flows through each resistor. According to the Ohm's Law, the circuit can be represented as follows:

Where:

- Voltage of the battery, measured in volts.

, , - Electric resistance of the first, second and third resistors, measured in ohms.

- Current, measured in amperes.

If , then:

Current that flows through any one of the resistors has a value of 12 amperes.

**Answer:**

16 kg

**Explanation:**

M - container

m - oil mass

by definition of density ,

relative density is the ratio of the density of a substance to the density of water.

relative density = density/ density of water

density of oil = 1.2*1000 kgm⁻³ = 1200 kgm⁻³

1 Litre =10⁻³ m³

oil volume = 80 *10⁻³ m³

mass of oil = density * volume

= 1200*80*10⁻³

= 96 kg

Mass of container + mass of oil =112

mass of container = 112 - 96

= 16 kg