1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
STatiana [176]
3 years ago
5

Mary and Alice were collecting the data for the class. Both girls were wearing white T-shirts. Billy came out to help them; he w

as wearing a dark navy T-shirt. "Boy, it is really hot out here," exclaimed Billy. The girls said they were not hot at all. Using the student experiment and the collected data, elaborate on the reason for the students' comments. A) White T-shirts reflect sunlight. Black T-shirts do not. B) White T-shirts did not absorb as much sunlight as dark T-shirts. C) Dark T-shirts are heavier than white T-shirts so Billy felt hotter than the girls. D) The girls had been outside in the sun for an hour and the heat did not bother them.
Physics
2 answers:
erma4kov [3.2K]3 years ago
3 0

Answer:

B

Explanation:

Because it has to do with the darker the object the better it emitts heat.

bekas [8.4K]3 years ago
3 0

Answer:

The boy said it was hot due to the darker clothing absorbing more light than reflecting it.

The girls didn't feel hot because the colour white reflects all light. (it doesn't absorb any colour, hence it being white)

You might be interested in
. Two identical vehicles traveling at the same speed are made to collide with barriers in an insurance company collision test. T
Serggg [28]

Answer:

F₁ / F₂ = 10

therefore the first out is 10 times greater than the second barrier

Explanation:

For this exercise let's use the relationship between momentum and momentum.

         I = F t = Δp

in this case the final velocity is zero

        F t = 0 -m v₀

        F = m v₀ / t

in order to answer the question we must assume that the two vehicles have the same mass and speed

concrete barrier

        F₁ = -p₀ / 0.1

        F₁ = - 10 p₀

barrier collapses

         F₂ = -p₀ / 1

let's look for the relationship of the forces

        F₁ / F₂ = 10

therefore the first out is 10 times greater than the second barrier

5 0
2 years ago
Accelerates uniformly at 2.0 ms2 for 10.0s. Calculate its final velocity​
Crazy boy [7]

Answer:

The distance is

=

7

m

Explanation:

Apply the equation of motion

s

(

t

)

=

u

t

+

1

2

a

t

2

The initial velocity is

u

=

0

m

s

−

1

The acceleration is

a

=

2

m

s

−

2

Therefore, when

t

=

3

s

, we get

s

(

3

)

=

0

+

1

2

⋅

2

⋅

3

2

=

9

m

and when

t

=

4

s

s

(

4

)

=

0

+

1

2

⋅

2

⋅

4

2

=

16

m

Therefore,

The distance travelled in the fourth second is

d

=

s

(

4

)

−

s

(

3

)

=

16

−

9

=

7

m

4 0
2 years ago
Which property of sugar makes it different from white crystalline sand?
yaroslaw [1]

Answer:

The property of sugar which makes it different from sand is that sugar can dissolve in water. Explanation: however the power of dissolving of sand is not present. This is due to the presence of interaction between sugar and water.

Explanation:

I hope that was useful

5 0
3 years ago
If a builder of mass 75kg climbs a vertical ladder of 25m how much energy has she gained ?
erica [24]
So,

GPE (graviational potential energy) = mass x g x height

GPE is depends on where zero height is defined.  In this situation, we define h = 0 as the initial height.

GPE = 75 \ kg*9.8 \ \frac{m}{s^2}*25 \ m

GPE = 18,375 \frac{kg*m^2}{s^2}

GPE = 18,375 \ joules(J) \ or \ 18.375 \ kilojoules(kJ)

The builder has gained 18.375 kJ of PE.
4 0
2 years ago
When atoms are split, they release energy. this concept applies to
balu736 [363]
This applies to nuclear reactions, specifically nuclear fission.

This huge release of energy has been used in atomic bombs and in the nuclear reactors that generate electricity.
6 0
3 years ago
Other questions:
  • The magnetic field over a certain range is given by B~ = Bx ˆı + By ˆ, where Bx = 2 T and By = 4 T. An electron moves into the
    10·1 answer
  • Find the magnitude and direction of an electric field that exerts a 4.80×10−17N westward force on an electron. (b) What magnitud
    13·1 answer
  • At takeoff, an aircraft travels at 62 m/s, so that the air speed relative to the bottom of the wing is 62 m/s. Given the sea lev
    15·1 answer
  • Which type of wave experiences a change in speed when entering a new medium?
    13·2 answers
  • A child bounces a 51 g superball on the sidewalk. The velocity change of the super bowl is from 22 m/s downward to 14 m/s upward
    7·1 answer
  • Is the chemical reaction shown balanced? Why or why not? 6CO2 + 6H2O → C6H12O6 + O2
    13·1 answer
  • Five difference between elastic collision and inelastic collision?​
    13·1 answer
  • A man is standing on the edge of a 20.0 m high cliff. He throws a rock horizontally with an initial velocity of 10.0 m/s.
    5·1 answer
  • Ok...... i need help
    5·2 answers
  • On which teeth are brackets most commonly
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!