The vertical component illustrates ____ motion and the horizontal velocity component __

A 30 resistor is connected in series with another resistor and a 6. 0V battery. The current in th

Setler79 [48]

Hi there!

We can begin by calculating the voltage drop across the 30 Ω resistor using the equation:

V = IR
V = Potential Difference (V)

I = Current (A)

R = Resistance (Ω)

Calculate the voltage. Recall that the current is CONSTANT across a series circuit.

V = 0.12 × 30 = 3.6 V

Voltage ADDS UP in a series, so:

Total V = V1 + V2

6 = 3.6 + V2

<u>V2 = 2.4V. The correct answer is A.</u>

6 0

2 years ago

The fact that the total amount of energy in a system remains constant is a(n) experiment. theory. hypothesis. Or law.

Murrr4er [49]

Answer:

Explanation:

The law of conservation of energy states that the total amount of energy in a system remains constant.

8 0

3 years ago

A uniform bar has two small balls glued to its ends. The bar is 2.00 m long and has mass 4.00 kg, while the balls each have mass

Talja [164]

Answer:

a)1.93 kg-m^2

b) 1.45 kg-m^2

c) = 0

d) 1.15 kg-m^2

Explanation:

mass of the bar M = 4 kg

length of the bar = 2 m

mass of balls m1= m2= 0.3 kg

moment of inertia of bar $I= \frac{ML^2}{12}$

about an axis perpendicular to the bar through its center.

a) MOI of bar + 2×m×(L/2)^2

$I= \frac{ML^2}{12}$ + $2m\frac{L}{2}^2$

now putting the values of m, M and L as above and solving we get

I= 1.93 kg-m^2

b) perpendicular to the bar through one of the balls

$I=M\frac{L^2}{3} +mL^2$

$I=4\frac{2^2}{3} +0.3\times4^2$ = 1.45 kg-m^2

c) parallel to the bar through both balls

zero as the no mass distribution along the parallel to the bar through both balls.

d) parallel to the bar and 0.500 m from it.

I= $(M+2m_1)\frac{1}{2}^2$

putting values and solving we get

1.15 kg-m^2

4 0

4 years ago

A moving walkway at the airport moves a 120Kg person 35m in 150s. How much power did this require?

Alexxx [7]

The amount of power required to move the 120 Kg person to a distance of 35 m in 150 s is 274.4 W

<h3>How to determin the power</h3>

Power is simply defined as the rate at which work is done. It can be expressed mathematically as

Power (P) = work (W) / time (t)

But

Work = force (F) × distance (d)

Therefore,

P = Fd / t

With the above formula, we can obtain the power as follow:

Mass (m) = 120 Kg
Distance (d) = 35 m
Time (t) = 150 s
Acceleration due to gravity (g) = 9.8 m/s²
Force (F) = mg = 120 × 9.8 = 1176 N
Power (P) = ?

P = Fd / t

P = (1176 × 35) / 150

P = 41160 / 150

P = 274.4 W

Thus, the power is 274.4 W

Learn more about power:

brainly.com/question/20353916

#SPJ1

6 0

1 year ago

Calculate the efficiency of the following appliances:

lubasha [3.4K]

Answer:

1. The efficiency of the radiator is 90 %

2. The efficiency of the torch is 65 %

3. The efficiency of the car is 40 %

4. The efficiency of the energy saver is 70 %

5. The efficiency of the speaker is 50 %

Explanation:

Efficiency = (Useful energy out ÷ Total energy in) × 100 J

1. Useful energy = 900 J

The total energy in = 1000 J

The efficiency of the radiator = ((900 J)/(1,000 J)) × 100 % = 90 %

2. Useful energy = 65 J

The total energy in = 100 J

The efficiency of the torch = ((65 J)/(100 J)) × 100 % = 65 %

3. Useful energy = 4,000 J

The total energy in = 10,000 J

The efficiency of the car = ((4,000 J)/(10,000 J)) × 100 % = 40 %

4. Useful energy = 700 J

The total energy in = 1,000 J

The efficiency of the energy saver = ((700 J)/(1,000 J)) × 100 % = 70 %

5. Useful energy = 50 J

The total energy in = 100 J

The efficiency of the speaker = ((50 J)/(100 J)) × 100 % = 50 %

4 0

3 years ago

The vertical component illustrates ____ motion and the horizontal velocity component ___.

The vertical component illustrates __ motion and the horizontal velocity component _.