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3 years ago

Is Global warming changing earth temperature ️

Physics

1 answer:

Yakvenalex [24]3 years ago

7 0

Explanation:

<h2>Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels.</h2>

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A box with a mass of 20 kilograms is sliding down a ramp tilted at an angle θ of 30° to the horizontal. Determine the accelerati

Bumek [7]

The acceleration of the box as it slides down the ramp is 4.9 m/s².

<h3>What is the acceleration of the box down the incline?</h3>

The acceleration of the box down the incline is determined by applying Newton's second law of motion as shown below;

F - Ff = ma

where;

F is the parallel force on the box
Ff is the frictional force on box = 0
m is the mass of the box
a is the acceleration of the box

F - 0 = ma

F = ma

mg sinθ = ma

g sinθ = a

where;

g is acceleration due to gravity
θ is the angle of inclination of the incline

a = 9.8 x sin(30)

a = 4.9 m/s²

Learn more about acceleration here: brainly.com/question/14344386

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2 years ago

A Cassegrain telescope has a hole in the main mirror. This reduces the mirror area and thus the light gathering power, but how m

balu736 [363]

Answer:

Explanation: A cassegrain telescope is a kind of telescope which is made up of the curved mirrors one of the mirrors is a concave mirror is called the primary mirror and the second mirror called the secondary mirror which is a convex mirror, when light Penetrate the cassegrain telescope, it first hits the primary concave mirror and it's then reflected by the secondary convex mirror.

5 0

3 years ago

Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80.0-kg astronaut in orbit moving at 27,500 k

laiz [17]

Kinetic energy is the energy that is possessed by an object that is moving. It is calculated by one-half the product of the mass and the square of the velocity of the object. We calculate as follows:<span>

For the truck,
KE = mv^2 / 2
KE = 20000 kg (110 km/h (1 h/3600 s)(1000 m / 1 km))^2 / 2
KE = 611111.11 J

For the astronaut,
KE = 80.0 kg (27500 km/h</span>(1 h/3600 s)(1000 m / 1 km)<span>)^2/2
KE = 611111.11 J

The kinetic energy possessed by the two bodies are the same.

</span>

3 0

3 years ago

How much current (in amps) does a 240- watt appliance draw when plugged into a typical 120-volt outlet in your home?

Black_prince [1.1K]

P =240 W
V= 120V
I = P/ V =240/120 =2A

8 0

4 years ago

Near the equator, venus rotates approximately 13/3 kilometers every 2/3 hours. what is the speed of venus near the equator

tia_tia [17]

Answer

Mass (1024 kg) 4.8675 5.9724 0.815

Volume (1010 km3) 92.843 108.321 0.857

Equatorial radius (km) 6051.8 6378.1 0.949

Polar radius (km) 6051.8 6356.8 0.952

Volumetric mean radius (km) 6051.8 6371.0 0.950

Ellipticity (Flattening) 0.000 0.00335 0.0

Mean density (kg/m3) 5243 5514 0.951

Surface gravity (eq.) (m/s2) 8.87 9.80 0.905

Surface acceleration (eq.) (m/s2) 8.87 9.78 0.907

Escape velocity (km/s) 10.36 11.19 0.926

GM (x 106 km3/s2) 0.32486 0.39860 0.815

Bond albedo 0.77 0.306 2.52

Geometric albedo 0.689 0.434 1.59

V-band magnitude V(1,0) -4.38 -3.99 -

Solar irradiance (W/m2) 2601.3 1361.0 1.911

Black-body temperature (K) 226.6 254.0 0.892

Topographic range (km) 13 20 0.650

Moment of inertia (I/MR2) 0.33 0.3308 0.998

J2 (x 10-6) 4.458 1082.63 0.004

Number of natural satellites 0 1

Planetary ring system No No

6 0

3 years ago

Is Global warming changing earth temperature ️​

Is Global warming changing earth temperature ️