All categories

4 years ago

Which factor is most important in determining climate?

Physics

1 answer:

valentina_108 [34]4 years ago

5 0

I think Is b the first question

You might be interested in

Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and

monitta

Answer:

$a=2,5m/s^2$

Explanation:

From the question we are told that:

Coefficient of kinetic friction $\mu= 0.200$

Vertical Mass $M_v=3kg$

Horizontal mass $M_h=3.00kg$

Generally the equation for kinetic force $F_k$ is mathematically given by

$F_k=\mu N\\F_k=0.2*3\\F_k=0.6$

Generally the equation for T is mathematically given by

$For M_v=3kg3g-T=3a$

For $M_h=3kg$

$T=M_v V+F_k\\T=3.0a+0.6$

Therefore substituting

$3-3a-0.6=3a\\2.4g=6a$

$a=2,5m/s^2$

3 0

3 years ago

An 6 kg object accelerating from 17 m/s to 10 m/s. What is the change in momentum of the object?

Oksana_A [137]

Answer:

the change is = 17 × 10 = 170 =28.33

3 0

3 years ago

NEED AN ANSWER FROM SOME ONE THAT IS FROM K12

marshall27 [118]

Answer:

1. Planetary Model

2. Protons and Neutrons

Explanation:

1. planetary model is also known as quantum model, which is the model we use nowadays

2. Majority of the mass is from the total of neutrons and protons, electrons are so small that it is not included with the mass

Hope this helps

4 0

3 years ago

Read 2 more answers

Motor oil, with a viscosity of 0.25 N ∙ s/m2, is flowing through a tube that has a radius of 3.0 mm and is 1.0 m long. The drop

Alex73 [517]

Answer:

The average speed of the oil is 1 m/s.

Explanation:

Given that,

Viscosity $\eta= 0.25 N-s/m^2$

Radius r = 3.0 mm

Length = 1.0 m

Pressure = 200 kPa

We need to calculate the average speed of the oil

Using formula of pressure

$\Delta P=\dfrac{8\pi\eta\rho v}{A}$

$v=\dfrac{A\times\Delta P}{8\pi\eta\rho}$

Where, A = area

$\rho$ = density of oil

$\eta$ = viscosity

Put the value into the formula

$v=\dfrac{\pi\times(3.0\times10^{-3})^2\times200\times10^{3}}{8\pi\times0.25\times0.9}$

$v=1\ m/s$

Hence, The average speed of the oil is 1 m/s.

6 0

4 years ago

A pneumatic system consists of several identical 1.5 inch diameter cylinders to lift 450-pound pallets in a warehouse. the gauge

DerKrebs [107]

The applicable equation:

P = F/A

P = pressure
F = Force or weight
A = surface area

Pressure on each cylinder = (W/n)/A
Where n = number of cylinders. Additionally, pressure in the reservoir is equivalent to the pressure in each cylinder.
Net pressure = 75 - 14.7 = 60.3 psi

Therefore,
60.3 = (W/n)/A = (450/n)/(πD^2/4) = (450/n)/(π*1.5^2/4) = (450/n)/(1.7671)
60.3*1.7671 = 450/n
106.03 = 450/n
n = 450/106.3 = 4.244 ≈ 5

The number of cylinders is 5.

3 0

3 years ago