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Trava [24]
3 years ago
11

Jana filled a cup with water. She put the cup in the sunlight and checked the temperature every 30 minutes. After 90 minutes, sh

e moved the cup into the shade. She continued to measure the temperature every 30 minutes. Why did the water temperature change when the cup of water was moved from the sunlight to the shade? A) The shade had more heat than the sunlight. B) The shade was more windy than the sunlight. C) The heat from the sunlight was lost in the shade. D) The sunlight could still reach the cup in the shade.
Physics
2 answers:
Virty [35]3 years ago
6 0
The correct answer will be C
kkurt [141]3 years ago
5 0

Answer:

The correct answer is C.

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An unmanned spacecraft travels to Mars. Mars has a lower strength of gravity than Earth. Where in the image is the spacecraft’s
elena-14-01-66 [18.8K]

Answer:

First Dot That is located on Earth.

Explanation:

Due to Earth's gravity being greater than the moon's on earth there is more gravitational force pulling down on the spacecraft.

3 0
4 years ago
Ice-skater slides toward a sled sitting on the ice and hits it. The skater exerts a 12.6 N force on the sled at an angle of 15.3
RideAnS [48]

Answer:

Expression of work done is

W = Fd cos\theta

Work done to move the sled is given as 187.2 J

Explanation:

As we know that the formula of work done is given as

W = Fd cos\theta

here we know that

F = 12.6 N

d = 15.4 m

\theta = 15.3 degree

so we will have

W = 12.6 \times 15.4 cos15.3

W = 187.2 J

5 0
3 years ago
Two carts collide on a low-friction track. Cart 1 has an initial momentum of +10 kg⋅m/sι^ and a final momentum of -5.0 kg⋅m/sι^
Basile [38]

According to the saving of the momentum, the total momentum before collision is equal to the total momentum after collision

<em><u>in symbols:</u></em>

<em>P_{i1}+P_{i2}=P_{f1}+P_{f2}</em>

thus

10+P_{i2}=(-5)+(-7)

then, the initial momentum of the second cart

P_{i2}=(-7)+(-5)+(10)=-23m/s

6 0
3 years ago
Read 2 more answers
A phonograph turntable rotating at 33 1 3 rev/min slows down and stops in 1.98 min. (Assume the turntable initially rotates in t
enyata [817]

Explanation:

photography presente in frame was of 11 meter thats why

6 0
3 years ago
As a particle moves 10.0 m along an electric field of strength 75 N/C, its electrical potential energy decreases by 4.8 × 10-16
Aleks04 [339]

Answer:

6.4×10⁻¹⁹ C

Explanation:

From the question,

V = E×d.............. Equation 1

Where V = electric potential, E = Electric Field, d = distance moved by the particle.

Given: E = 75 N/C, d = 10 m.

Substitute into equation 1

V = 75×10 = 750 V.

Also Using,

W = qV.................. Equation 2

W = Work done by the particle when it moves, q = Particles charge

make q the subject of the equation,

q = W/V............ Equation 3

Given: W = 4.8×10⁻¹⁶ J, V = 750 V

Substitute into equation 3

q = 4.8×10⁻¹⁶/750

q = 6.4×10⁻¹⁹ C

6 0
3 years ago
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