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murzikaleks [220]
3 years ago
13

When the frequency of an electromagnetic wave increases, its energy

Physics
2 answers:
OverLord2011 [107]3 years ago
8 0
The energy stays the same
STatiana [176]3 years ago
4 0

Answer:

Decreases APEX verified

Explanation:

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If a boat and its riders have a mass of 1100 kg and the boat drifts in at 1.3 m/s how much work does Sam do to stop it
andriy [413]

Answer:

-929.5Joules

Explanation:

To get the work done by sam, we will calculate the kinetic energy of sam expressed as;

KE = 1/2mv²

m is the mass = 1100kg

v is the velocity = 1.3m/s

KE = 1/2(1100)(1.3)²

KE = 550(1.69)

KE = 929.5Joules

Since Sam is opposing the direction of movement, work done by him will be a negative work i.e -929.5Joules

5 0
3 years ago
Is the mass of an object measured with scale, yes or no​
mamaluj [8]

Answer:

No.

Explanation:

The scale actually measures the force that the object does against it, and that force is called the weight.

Such that if we have an object with mass M and we are on Earth, where the gravitational acceleration is g, the weight is:

W = M*g

Now, there is a unit called "kilogram-force"

Such that on Earth, an object that has a mass of 10 kilograms, weighs 10 kilograms-force.

Then from the weight measure, we can instantly know the mass of the object, but the thing that is being measured is the weight, not the mass.

7 0
3 years ago
List some ways houses would be built differently if gravity were much stronger or much weaker ?two
tia_tia [17]

Answer:

If gravity were stronger, houses and buildings would have to be more sturdy so they do not get crushed to the ground. If gravity were weaker, buildings and houses would have to be built stronger so they do not float away.

Hope this helps you!

8 0
3 years ago
Read 2 more answers
Adding resistors in series changes the total resistance of a circuit by
skelet666 [1.2K]

Answer:

Increasing the resistance

Explanation:

6 0
3 years ago
Help! I don’t really know what it’s asking
Misha Larkins [42]
You have to do the math of each and see which one adds up to 66.5
6 0
2 years ago
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