PHYSICS HIGH SCHOOL

I will mark brainliest if you get it right.

Answers

Answer 1

Answer:

Answer:

Satellite D

Explanation:

It has more mass

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In a closed system, glider A with a mass of 0.40 kg and a speed of 2.00 m/s collides with glider B at rest with a mass of 1.20 kg. The two interlock and move off. What speed are they moving at?

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The speed are they moving at will be 0.5 m/sec.Law of conservation of momentum is applied.

What is the law of conservation of momentum?

According to the law of conservation of momentum, the momentum of the body before the collision is always equal to the momentum of the body after the collision.

The given data in the problem is;

(m₁) is the mass of 1st gilder= 0.40 kg

(u₁) is the initial velocity = 2 m/s

(m₂) is the mass of 2nd gilder = 1.20 kg

(u₂) is the initial velocity of 2nd gilder = 0 m/s

(v) is the velocity after collision =.?

According to the law of conservation of momentum;

Momentum before collision =Momentum after collision

$\rm m_1u_1 + m_2u_2 = v(m_1 + m_2)\n\n(0.40* 0.25) + (1.2 * 0) = v * (0.40+1.20) \n\n 125 + 0 = v * (1250) * 125 \n\n \rm v= (0.8)/(1.6) \n\n \rm v= 0.5 \ m/sec$

Hence, the speed are they moving at will be 0.5 m/sec

To learn more about the law of conservation of momentum refer;

brainly.com/question/1113396

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Conservation of momentum.
m1*u1 + m2*u2 =m1*v1 + m2*v2
here u2=0 body at rest, v1=v2=v both interlock and move together
0..4*2+1.2*0 = 0.4*v+1.2*v
v= 0.8/1.6 = 0.5 m/sec

A substance has a melting point of 0 degrees celsius and a boiling point of 100 degrees celsius. The substance is most likelya. water
b. hydrogen
c. gold
d. table salt

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water. These physical properties are specific to water.

Tekanan gas yang berada dalam suatu ruangan dikurangi hingga setengahnya.hal ini menyebabkan suhu gas tersebut turun menjadi 3/4 dari semula.tentukanlah perbandingan volume gas akhir dan volume gas awal

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PV/T =C

P.V1/T = 1/2P.V2/3/4T
V1= 4V2/6
V2/V1 = 6/4 =3/2

Index fossils are the remains of species that were once abundant and

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The question is asking to complete the sentence: index fossils are the remains of species that were once abundant and (...). Index fossils are used to be able to see that a certain layer of soil was from a particular period of time. This means that they could not have lived long - just for a short period in the geological history. Typically, index fossils were also geographically widespread, but it's not always the case

Answer:

Geographically Widespread

How long does water evaporation take? What factors influence it?

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there is no certain time on how long it takes. Because the factors will always be different and the factors heavily affect the evaporation time. Some factors include: humidity, heat, how the sun is visible (whether clouds are covering it or not)

There is not any fix time for evaporation...every liquid has different boiling point....when any liquid boils completely then it start evaporating.

Six factors that influence evaporation are :-
(1) Wind assists evaporation
(2) Heat assists evaporation
(3) Increase in surface area exposed assists evaporation
(4) Dryness assists evaporation
(5) Rate of evaporation depends upon the nature of the liquid
(6) Vapor pressure

Volume of a Cube The volume V of a cube with sides of length x in. is changing with respect to time. At a certain instant of time, the sides of the cube are 7 in. long and increasing at the rate of 0.2 in./s. How fast is the volume of the cube changing (in cu in/s) at that instant of time?