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topjm [15]
3 years ago
15

True or False? A negative energy balance occurs when you take in more calories than you need, and a positive energy balance occu

rs when you take in fewer calories than you need.
Physics
1 answer:
Rudik [331]3 years ago
7 0
False, because if you take too much calories, you are have too much. That means you are in the positive, you have too much energy.

and if you take fewer, you will have less calories, so less energy.
You might be interested in
With what speed does the can move immediately after the collision? Answer in units of m/s.
Ratling [72]

Answer:

1.74 m/s

Explanation:

From the question, we are given that the mass of the an object, m1= 2.7 kilogram(kg) and the mass of the can,m(can) is 0.72 Kilogram (kg). The velocity of the mass of an object(m1) , V1 is 1.1 metre per seconds(m/s) and the velocity of the mass of can[m(can)], V(can) is unknown- this is what we are to find.

Therefore, using the formula below, we can calculate the speed of the can, V(can);

===> Mass of object,m1 × velocity of object, V1 = mass of the can[m(can)] × velocity is of the can[V(can)].----------------------------------------------------(1).

Since the question says the collision was elastic, we use the formula below

Slotting in the given values into the equation (1) above, we have;

1/2×M1×V^2(initial velocity of the first object) + 1/2 ×M(can)×V^2(final velocy of the first object)= 1/2 × M1 × V^2 m( initial velocity of the first object).

Therefore, final velocity of the can= 2M1V1/M1+M2.

==> 2×2.7×1.1/ 2.7 + 0.72.

The velocity of the can after collision = 1.74 m/s

7 0
3 years ago
100 points
luda_lava [24]

Answer:

10.21m/s²

Explanation:

Radial acceleration, also known as centripetal acceleration, refers to the acceleration of an object along the circular radius. It can be calculated using the formula:

a(r) = v²/r

Where a(r) = radial acceleration

v = velocity

r = radius of the circular path

According to the information provided in the question, velocity (v) = 17.5m/s, radius = 30m. Hence;

a(r) = v²/r

a(r) = 17.5²/30

a(r) = 10.208333

a(r) = 10.21m/s²

5 0
3 years ago
If you run at an average speed of 10 mi/h, how long will it take
PSYCHO15rus [73]

Answer:

25 Minutes

Reason:

Because you know mi/h means the miles PER hours, and we know that when we see the word "per" we're dealing with a rate. What we have to do here, is multiply 10(mph) is like the average, or limit. So if I'm running 2.5 miles I multiply 10 x 2.5 to get 25.

Sorce: Brainly.com

3 0
3 years ago
A flash of white light containing all the colors of the visible spectrum in air shines straight down on the surface of a pool. W
Mila [183]

Answer:

The blue light

Explanation:

Spectrums of visible light with longer wavelength are absorbed more quickly such as red than those with shorter wavelength. This contributes to why blue with higher energy and shorter wavelength is able to penetrate deeply compared to others that are easily absorbed. Blue light persist longer so it reaches the depth first while so of others are absorbed.

3 0
3 years ago
Does air have weight? Explain your answer.<br> PLEASE HURRY!
Liono4ka [1.6K]

Answer:

No

Explanation:

Air doesn't have weight because it is, in terms, an oxygen gas.

4 0
3 years ago
Read 2 more answers
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