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nordsb [41]
3 years ago
15

How have scientists learned about extinct species?

Physics
1 answer:
zloy xaker [14]3 years ago
5 0
 im pretty sure its by studying fossils
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Explain what happens with the light when you see black and white opaque objects
maksim [4K]

Answer:

When white light strikes a colored opaque object, some colors of light are absorbed and some are reflected. ... Some of the colors are absorbed and some are reflected. When white light shines on a white object, all colors are reflected. When white light strikes a black object, all colors are absorbed.

Explanation:

7 0
3 years ago
Read 2 more answers
What is the mass of a dog that weighs 382 N?(unit=kg)
tino4ka555 [31]

Answer:

38.77 kg

Explanation:

The weight of an object is given by:

Weight = mg,  g = acceleration due to gravity ( 9.8 m/s square)

and m is the mass.

So, in this case:

Weight of dog is 382 N, so, by putting the values of weight and g into the equation we will get the mass of dog.

382 = mass multiply with 9.8

so, the mass of the dog will be 38.77 kg

4 0
4 years ago
.<br>1. How does the arrangement of a pulley system affect its ideal mechanical advantage​
lukranit [14]

Answer: In a pulley, the ideal mechanical advantage is equal to the number of rope segments pulling up on the object. The more rope segments that are supporting to do the lifting work, the less pressure that is needed for the job.

Explanation:

7 0
3 years ago
An ohmic dipole of resistance 100 ohm is crossed by a current of intensity 120 ma. Calculates the voltage across this chemical d
Sedaia [141]

Answer:

12.0 Volt

Explanation:

Step 1: Given data

Resistance of the ohmic dipole (R): 100 Ohm

Intensity of current (I): 120 mA (0.120 A)

Step 2: Calculate the voltage (V) across this chemical dipole

To calculate the voltage across the ohmic dipole, we will use Ohm's law.

I = V/R

V = I × R

V = 0.120 A × 100 Ohm = 12.0 V

4 0
3 years ago
An open container of oil rests on the flatbed of a truck that is traveling along a horizontal road at 55 mi/hr. As the truck slo
rjkz [21]

Answer:

Slope = 0.50.

Explanation:

Below is an attachment containing the solution to the question.

3 0
3 years ago
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