A _______ satellite records reflected wavelengths from Earth's surface.

Answers

Answer 1

Answer: A visible satellite images records reflected wavelengths from Earth's surface.

Visible satellite images record visible light coming from the sun that is reflected by clouds, land, oceans or snow and ice.
There is a big difference between visible and infrared images since visible images record reflected light rather then emitted radiation.

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80123.00 in scientific notation then rounded up to 3 sig figs

Answers

not exactly sure what the last part of the question is but in regular scientific notation it would be " 8.0123x10 (to the 4th power)"

there wasnt a sign for the exponent lol

Which would best reduce the amount of energy needed to pull a wagon up a ramp?1.Increasing the slope of the ramp
2.Reducing the friction between the wagon wheels
3.Reducing the length of the wagon handle
4.Increasing the friction between the wagon wheels

Answers

Answer:

2.Reducing the friction between the wagon wheels

Explanation:

If the friction between the wagon wheels and the rail is reduced, then less force will be needed to pull the wagon up. This is because the friction force goes in the opposite direction of the movement, that is, friction force opposes the desired movement, making it more difficult.

2. reducing the friction between wagon weels

How do you find an object's mass on an acceleration vs. force graph?

Answers

Newton's 2nd law of motion is: Force= (mass) x (acceleration).

Divide each side by 'acceleration' and you have: Mass = (force) / (acceleration).

-- At any point on the graph, read off the force and the acceleration.
-- Divide the force by the acceleration.
-- The quotient is the mass.

It should be constant, unless the moving object is something like a rocket,
which is constantly burning fuel and reducing its mass.

Water, with a density of rho = 1145 kg/m 3 , flows in a horizontal pipe. In one segment of the pipe, the flow speed is v 1 = 7.33 m/s . In a second segment, the flow speed is v 2 = 1.57 m/s . What is the difference between the pressure in the second segment ( P 2 ) and the pressure in the first segment ( P 1 )?

Answers

Answer:

the pressure difference will be ΔP= P₂ - P₁ =29348.64 Pa

Explanation:

from Bernoulli's equation

P₁ + ρgh₁+ 1/2ρv₁²= P₂ + ρgh₂+1/2ρv₂²

where P = pressure , ρ= density , g= gravity , h= height , v=flow speed and 1 and 2 denote first and second segment respectively

then since the pipe is horizontal there is no difference in height (h=h₁=h₂) , thus

P₁ + 1/2ρv₁²= P₂ + 1/2ρv₂²

the pressure difference ΔP= P₂ - P₁ will be

ΔP= P₂ - P₁ = 1/2ρv₁² - 1/2ρv₂² = 1/2*ρ* (v₁² - v₂²)

replacing values

ΔP= 1/2*ρ* (v₁² - v₂²) = 1/2 *1145 kg/m³ * [(7.33 m/s)² - (1.57 m/s)²] = 29348.64 Pa

ΔP= 29348.64 Pa

The energy an object has because of its position is called _____

Answers

Answer:

Gravitational potential energy

Explanation:

The gravitational potential energy is the energy that an object has because of its positive with respect to a certain reference level (generally assumed to be the ground level).

The magnitude of the gravitational potential energy is given by

$U=mgh$