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Aleonysh [2.5K]
3 years ago
14

Which statement best defines the relationship between work and energy? Work can transfer energy between objects and increase rad

iant energy. Work can transfer energy between objects and cause a change in the form of energy. Work can transfer energy between objects and decrease nuclear energy. Work can transfer energy between objects and cause a change in the amount of total energy.

Physics
2 answers:
raketka [301]3 years ago
8 0

Answer: B Work can transfer energy between objects and cause a change in the form of energy.

Explanation:

Vera_Pavlovna [14]3 years ago
6 0

Answer:

Explanation:

proof

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Scientists want to place a telescope on the moon to improve their view of distant planets. The telescope weighs 200 pounds on Ea
LuckyWell [14K]

Answer:

Explanation:

the weight of the telescope decreases  because the moon attract the body with less force as compared to earth due to less gravity as compared to earth

6 0
3 years ago
Check the correctness of given equation<br> s = ut + (1/2)at^2
ruslelena [56]

Lets use Dimensional analysis.

\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2

<h3>LHS:-</h3>

\\ \sf\longmapsto s=\left[M^0LT^0\right]

<h3>RHS</h3>

\\ \sf\longmapsto ut+\dfrac{1}{2}at^2

\\ \sf\longmapsto \left[M^0LT^{-1}\right]\left[M^0L^0T^1\right]+\dfrac{1}{2}\left[M^0LT^{-2}\right]\left[M^0L^0T^1\right]^2

\\ \sf\longmapsto L+\dfrac{1}{2}\left[LT^{-2}\right]\left[T^2\right]

\\ \sf\longmapsto L+\dfrac{1}{2}L

\\ \sf\longmapsto \dfrac{2L}{2}

\\ \sf\longmapsto [L^1]

\\ \sf\longmapsto \left[M^0LT^0\right]

LHS=RHS

Hence verified

6 0
3 years ago
A black body radiates heat energy at the rate of 2 x 10 Js" m' at a temperature of 127° C. The temperature
Degger [83]

Answer:

527 ° C

Explanation:

For black body radiation, the power emitted per unit area is directly proportional to the absolute temperature raised to the fourth power:

j = k T⁴

First, convert 127° C to Kelvins:

127° C + 273.15 = 400.15 K

Now find the constant of variation:

2×10⁵ = k (400.15)⁴

k = 7.80×10⁻⁶

Finally, solve for the temperature at the new rate of radiation:

32×10⁵ = (7.80×10⁻⁶) T⁴

T = 800.3

The temperature is 800 K, or about 527 ° C.

5 0
3 years ago
This table lists the densities of four different substances.
cestrela7 [59]

Answer:

GREATER than 1 g/cm. 3, it will SINK in water. LESS than 1 g/cm3, it will FLOAT in water. If an object's density is: Density of Object > Density of Liquid.

Explanation:

3 0
4 years ago
A cylinder has a radius r and a length l. if the radius were to double and the length were to stay the same, by what factor woul
Paul [167]

Answer:

double

Explanation:

radius = r

length = l

Surface area, A = 2 π r l .... (1)

Now the radius is doubled = 2r

length is same

Surface area, A' = 2 x π x 2 r x l

A' = 2 x 2πrl

A' = 2 A      (from equation (1)

Thus, the surface area is doubled.  

4 0
3 years ago
Read 2 more answers
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