Three 5 Ohm resistors are connected in series to a 10 Volt power supply. What is the current through each resistor?

What color will a star be with a surface temperature of 5000 6000 K?

The color of a star would with that surface temperature would be White. Hope this helps. :)

6 0

3 years ago

An actor has a mass of 70 kg. Gravitational field strength = 9.8 N/kg. Use the following equation to calculate the weight of the

GalinKa [24]

This is a way of measuring how much gravity there is. The formula is: weight/mass = gravitational field strength.

Gravitational field strength = Weight/mass unit is N/kg

Weight = mass x gravitational field strength unit is N

On Earth the gravitational field strength is 10 N/kg. Other planets have different gravitational field strengths. The Moon has a gravitational field strength of 1.6 N/kg. You might have seen films of astronauts leaping high on the moon.

Here on Earth, if I jump I am pulled back to ground by gravity. What is my weight? My mass is 80kg and if we multiply by gravitational field strength (10N/kg) - my weight is 800N. Now if I go to the moon, my mass will be the same, 80kg. We multiply that by the moon's gravitational field strength, which is 1.6 N/ kg. That means my weight on the moon is 128N. So I have different weights on the Earth and on the Moon. That's why astronauts can jump high into the air on the moon - they're lighter up there.

Jupiter is a very large planet with strong gravitational field strength of 25 N/ kg. My body is 80kg. If I go to Jupiter my weight is going to be 25 x 80 = 2,000 N. That means I wouldn't be able to get off the ground or stand up straight! I would probably be lying down all the time there. So weight varies depending on which planet you are on. You can find out more yourself by looking up tables of weight on different planets.

8 0

2 years ago

Four vehicles are traveling on the same road. Which vehicle most likely has the greatest. Kinetic energy?

Harman [31]

Kinetic energy depends upon mass and velocity ! so the vehicle which has both the quality,has greatest KE !

6 0

3 years ago

At a rock concert, the sound intensity 1.0m in front of the bank of loudspeakers is 0.10 W/m^2. A fan is 30.0m from the loudspea

ElenaW [278]

Answer: The amount of energy transferred to each eardrum in one second is $6.2 \times 10^{-9} J$ .

Explanation:

Given: Intensity = 0.10 $W/m^{2}$

Now, at 30.0 m the intensity will be calculated as follows.

$Intensity = \frac{(30.0 m)^{2}}{(1 m)^{2}}\\= 900$

This means that the intensity is 900 times less assuming that the wave is spherical.

Hence, the new intensity is calculated as follows.

$\frac{0.10 W/m^{2}}{900}\\= 1.11 \times 10^{-4} W/m^{2}$

The area of ear drum is expressed as follows.

$Area = \pi \times r^{2}\\= 3.14 \times (4.2 mm)^{2}\\= 5.54 \times 10^{-5} m^{2}\\$

Formula used to calculate energy is as follows.

$P = I \times a$

where,

P = power or energy

I = intensity

a = area

Substitute the values into above formula as follows.

$P = I \times a\\= 1.11 \times 10^{-4} W/m^{2} \times 5.54 \times 10^{-5} m^{2}\\= 6.2 \times 10^{-9} W$

Thus, we can conclude that amount of energy transferred to each eardrum in one second is $6.2 \times 10^{-9} J$ .

7 0

3 years ago

What is a good example of a contact force?

exis [7]

Answer:

Sitting on a couch

Explanation:

The couch is exerting an upwards force so that would make it a contact force

5 0

4 years ago

Three 5 Ohm resistors are connected in series to a 10 Volt power supply. What is the current through each resistor?​

Three 5 Ohm resistors are connected in series to a 10 Volt power supply. What is the current through each resistor?