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Lelu [443]
3 years ago
13

Out of hypothesis, theories and laws “can help predict future events”

Physics
1 answer:
Amanda [17]3 years ago
7 0

Answer:

true

Explanation:

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A robot starts from a certain point and moves east for a distance of 5.0 meters, then goes north for 3.0 meters, and then turns
pashok25 [27]

Explanation:

It is given that, a robot starts from a certain point and moves east for a distance of 5.0 meters, then goes north for 3.0 meters, and then turns west for 2.0 meters.

Let east is +x, west is -x north is +y.

When it moves east for a distance of 5.0 meters, it means (5,0)

When it goes north for 3.0 meters, and then turns west for 2.0 meters, it means (0,3) +(-2,0)

(a) x-y coordinates for the resultant vector is (3,3)

(b) The magnitude of the resultant vector for the robot is given by :

R=\sqrt{3^2+3^2} \\\\R=4.24\ m

4 0
3 years ago
Half life of a given sample of radium is 22 years the sample will reduce to 25% of its original value after
makkiz [27]

Answer:

44 years

Explanation:

Use half life equation:

A = A₀ (½)^(t / T)

where A is the final amount,

A₀ is the initial amount,

t is time,

and T is the half life.

0.25 A₀ = A₀ (½)^(t / 22)

0.25 = (½)^(t / 22)

t / 22 = 2

t = 44

3 0
3 years ago
Describe the conditions necessary for sublimation to occur​ please help
katovenus [111]

Answer:

Sublimation occurs more readily when certain weather conditions are present, such as low relative humidity and dry winds. Sublimation also occurs more at higher altitudes, where the air pressure is less than at lower altitudes. Energy, such as strong sunlight, is also needed.

6 0
2 years ago
A rogue wave is a random monstrous wave that occurs unexpectedly in the ocean.
Tpy6a [65]

A wave with a large amplitude

a wave check

8 0
3 years ago
Read 2 more answers
If a bouncing ball has a total energy of 20 J and a kinetic energy of 5 J, the ball’s potential energy is
navik [9.2K]

Answer:

15 and Increasing

Explanation:

Hope this helps

Have a wonderful day and many more to come

Alexis~

~A.K.A Moon~

7 0
2 years ago
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