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lisabon 2012 [21]
2 years ago
12

Help will mark brain list

Physics
1 answer:
Hatshy [7]2 years ago
3 0
A jagged line represents a resistor .
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If your front lawn is 18.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1050 new snow flakes every min
Ivanshal [37]
<span>First, we need to determine the entire area of your front line by multiplying its length times its width.
18.0*20.0 = 360.0 square feet
We can use the rate of accumulation of snow, combined with this figure, to determine how much snow accumulates on your lawn per minute.
360.0 sq ft * 1050 flakes/min/sq ft = 378,000 flakes/min
We can then use the mass of a snowflake to calculate total snow accumulation per minute.
378,000 flakes/min * 2.00 mg/flake = 756,000 mg/min
Finally, we can use this number to determine accumulation per hour.
756,000 mg/min * 60 min/hr =
45,360,000 mg/hr</span>
8 0
3 years ago
The table represents the forces on four objects, with directions. Object F1 ↑ F2 → F3 ← F4 ↓ W 30 N 20 N 20 N 30 N X 15 N 35 N 2
Reika [66]

When the magnitude of all opposing forces is equal, then the force is called balanced. The forces on W and Y are balanced while the forces on X and Z are unbalanced.

<h2>Net Force:</h2>

It is defined as the vector sum of all forces acting on the object. The forces with the same magnitude in the opposite direction cancel each other.

<h3>Balanced force: </h3>

When the magnitude of all opposing forces is equal, then the force is called balanced.

<h3>Unbalanced force: </h3>

When a force is more than the opposing force, the force is called unbalanced.

Therefore, the forces on W and Y are balanced while the forces on X and Z are unbalanced.

Learn more about Net Force:

brainly.com/question/14361879

5 0
2 years ago
Read 2 more answers
When the force applied to an object increases, the motion of the object​
Elza [17]

Answer:

Semen is the most important thing in the life cycle of life

6 0
4 years ago
For the chemical reaction C2H6 --&gt; C2H4 + H2 + 137kJ, the chemical energy of the A. reactant and the chemical energy of the p
Goryan [66]

Answer: The chemical energy of reactants is greater than the chemical energy of products.

Explanation: In the given reaction

C_2H_6\rightarrow C_2H_4 + H_2 +137 kJ

It can be seen that the energy has been released. Thus we can say that reactants have converted to products by release of energy. Thus energy of products is less as compared to energy of reactants as some of the energy has been released.


4 0
3 years ago
Read 2 more answers
A cylindrical tungsten filament 16.0 cm long with a diameter of 1.00 mm is to be used in a machine for which the temperature wil
KonstantinChe [14]

Answer:

Explanation:

Resistance of the tungsten wire

R = resistivity x length / cross sectional area

= \frac{5.25\times10^{-8}\times16\times10^{-2}}{3.14\times(.5\times10^{-3})^2}

= 107 x 10⁻⁴ ohm

Resistance at 120 degree can be obtained from the following formula

R_t = R_0( 1 + \alpha\times t )

R_t = 107\times10^{-4}( 1 + .0045\times 100)

= 155.15 x 10⁻⁴ ohm

= 160 x 10⁻⁴ ohm ( rounding off to two syg fig )

current = 12.5

potential diff = 12.5 x 155.15 x 10⁻⁴ V

=  0 .1939 V

= .19 V

required electric field = potential diff / length of wire

= .1939 / 16 x 10⁻²

= 1.2 N / C

4 0
3 years ago
Read 2 more answers
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