Answer:
Labor Day Weekend--No School
9/1/2021
Hello Students!
There will be no School on Friday Sept 3 and Monday Sept 6
All centers will be closed on Friday 9/3 and Monday 9/6
School will resume on TUESDAY, Sept 7
Enjoy your long weekend!
Explanation:
Labor Day Weekend--No School
9/1/2021
Hello Students!
There will be no School on Friday Sept 3 and Monday Sept 6
All centers will be closed on Friday 9/3 and Monday 9/6
School will resume on TUESDAY, Sept 7
Enjoy your long weekend!
Hi there!
1.
Since the two resistors are in series, we can simply add:


2.
In series, the potential difference of each resistor (lamp) ADDS UP. We can begin by finding the current through the circuit using Ohm's law:

Plug in the values:

Now,
we can use Ohm's law to find the individual voltage for each lamp.
20 Ohm lamp:

5 Ohm lamp:

3.
To solve, we can use the power equation.

Plug in the values for each.
20 Ohm lamp:

5 Ohm lamp:

Impulse is caused by a force during a specific time that is equal to the body's change of momentum
Impulsive force: the process of minimizing an impact force can be approched
Answer:
0Nm, no work is done.
Explanation:
Work done is defined as the Force per distance meaning force times the distance moved in the direction of the force.
Now the body of mass 50g has a centripetal force acting on it directed towards the centre. Now in actuality the body stays along the circle it doesn't really move to the centre of the circle.
Hence the force doesn't move a distance, and so from the definition of work done;
F×d ; d =0
Hence work done = mv2/r × 0= 0Nm
Answer:
F = 51.3°
Explanation:
The component of weight parallel to the inclined plane must be responsible for the rolling back motion of the car. Hence, the force required to be applied by the child must also be equal to that component of weight:

where,
W = Weight of Wagon = 150 N
θ = Angle of Inclinition = 20°
Therefore,

<u>F = 51.3°</u>