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3 years ago

31. If Earth's mass was cut in half, your weight would

Physics

1 answer:

Oxana [17]3 years ago

5 0

Answer:

it would decrease to one half your original weight

Explanation:

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What increases the transfer of the wind's energy to the water?

kari74 [83]

Answer:

A, flat water

Explanation:

6 0

2 years ago

HeLp AsAp!!!!!! How long would it take you to hop 30 meters based on your speed for the 5-meter trial? Show your work!

Novosadov [1.4K]

Answer:

20.5s

Explanation:

Given parameters:

Distance = 30m

Unknown:

Time = ?

Solution:

The time it will take to hop a distance of 30m using the speed for the 5m trial is the duration of the trip.

The speed for the 5m trial = 1.46m/s

Now;

Speed = $\frac{distance}{time}$

Distance = speed x time

time = $\frac{distance }{speed}$

Input the parameters and solve;

time = $\frac{30}{1.46}$ = 20.5s

7 0

3 years ago

3. Calculate the speed for a car that went a distance of 155 kilometers in 3 hours

Sladkaya [172]

Answer:This is an explanation

for 150 km its all ik i tried hard ty

Explanation:The car covers 150 km in 3 hours or 3*60 = 180 minutes.

So in 12 min the car will cover (12/180)*150 = 10 km.

8 0

2 years ago

Read 2 more answers

What s the rate of acceleration of gravity?

Ivenika [448]

The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s.

4 0

3 years ago

Read 2 more answers

A beam of light passes through a liquid into air. Angle 1, angle of

Ede4ka [16]

Answer: 1.57

Explanation:

This described situation is known as Refraction, a phenomenon in which light bends or changes its direction when passing through a medium with a index of refraction different from the other medium.

In this context, the index of refraction is a number that describes how fast light propagates through a medium or material.

According to Snell’s Law:

$n_{1}sin(\theta_{1})=n_{2}sin(\theta_{2})$ (1)

Where:

$n_{1}$ is the first medium index of refraction (the value we want to know)

$n_{2}=1$ is the second medium index of refraction (air)

$\theta_{1}=23\°$ is the angle of incidence

$\theta_{2}=38\°$ is the angle of refraction

Now, let's find $n_{1}$ from (1):

$n_{1}=n_{2}\frac{sin \theta_{2}}{sin \theta_{1}}$ (2)

Substituting the known values:

$n_{1}=1\frac{sin(38\°)}{sin(23\°)}$

Finally:

$n_{1}=1.57$

3 0

3 years ago