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
Radda [10]
3 years ago
14

10.

Physics
1 answer:
Ronch [10]3 years ago
8 0
Answer is D not A! If there was no friction, an object would never decelerate, it would continue moving forever
You might be interested in
What is the reflectivity of a glass surface (n =1.5) in air (n = 1) at an 45° for (a) S-polarized light and (b) P-polarized ligh
Goshia [24]

Answer:

a) R_s = 0.092

b) R_p = 0.085

Explanation:

given,

n =1.5 for glass surface

n = 1 for air

incidence angle = 45°

using Fresnel equation of reflectivity of S and P polarized light

R_s=\left | \dfrac{n_1cos\theta_i-n_2cos\theta_t}{n_1cos\theta_i+n_2cos\theta_t} \right |^2\\R_p=\left | \dfrac{n_1cos\theta_t-n_2cos\theta_i}{n_1cos\theta_t+n_2cos\theta_i} \right |^2

using snell's law to calculate θ t

sin \theta_t = \dfrac{n_1sin\theta_i}{n_2}=\dfrac{sin45^0}{1.5}=\dfrac{\sqrt{2}}{3}

cos \theta_t =\sqrt{1-sin^2\theta_t} = \dfrac{sqrt{7}}{3}

a) R_s=\left | \dfrac{\dfrac{1}{\sqrt{2}}-\dfrac{1.5\sqrt{7}}{3}}{\dfrac{1}{\sqrt{2}}+\dfrac{1.5\sqrt{7}}{3}} \right |^2

R_s = 0.092

b) R_p=\left | \dfrac{\dfrac{\sqrt{7}}{3}-\dfrac{1.5}{\sqrt{2}}}{\dfrac{\sqrt{7}}{3}+\dfrac{1.5}{\sqrt{2}}} \right |^2

R_p = 0.085

3 0
3 years ago
What type of matter is absorbent
Elanso [62]
Gas, liquid, or solid
8 0
3 years ago
Imagine tying a string to a ball and twirling it around you. How is this similar to the moon orbiting Earth? In this example, wh
leonid [27]
The string kind of acts like gravity 
5 0
3 years ago
A stone is thrown straight up. when it reaches it’s highest point, _____
Sati [7]

both it velocity and acceleration is zero.

8 0
3 years ago
Three students have been studying relative motion and decide to do an experiment to demonstrate their knowledge. The experiment
miskamm [114]

Answer with Explanation:

We are given that

Constant speed of Jane=12.6 m/s

a.When Fred can throw the ball 30  m/s

We have to find the angle relative to the horizontal when he throw the ball in order for Sue to see the ball travel vertically upward.

Let \theta be the angle .

Therefore,

30 cos\theta=12.6

cos\theta=\frac{12.6}{30}=0.42

\theta=cos^{-1}(0.42)=65.165^{\circ}

b.We have to find the height to which ball reach.

v^2-v^2_0=2aS

S=\frac{v^2-v^2_0}{2a}=\frac{0-(30 sin65.165)^2}{2(-9.81)}

S=37.78 m

7 0
3 years ago
Other questions:
  • Will an object with a density of 1.05 float or sink? Explain.
    8·2 answers
  • A 7.00 kg mass is being pulled by a 53.8 n force what is the acceleration
    6·1 answer
  • A point charge is placed at the center of a spherical Gaussian surface. Is changed (a) if the surface is replaced by a cube of t
    5·1 answer
  • The medium seismic waves travel through is
    7·2 answers
  • What conditions are necessary for an artesian well
    6·1 answer
  • which of the following described qualitative data? a. recording the temperature of a solid as it is warmed. b. noting the color
    14·2 answers
  • A man drops a penny V=0 off the top of the Golden Gate Bridge how fast will the penny be moving when it hits the ground? The gol
    10·1 answer
  • Dimas reads that it takes 270 N to lift a firefighter's equipment. If a firefighter does 5400 J of work carrying the equipment u
    13·2 answers
  • People will form relationships with others who are similar in __________.
    14·2 answers
  • A generator coil is rotated one quarter of a full revolution, from θ = 0° to θ = 90°,
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!