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
natta225 [31]
3 years ago
9

Carmen is helping load furniture and boxes onto a moving truck. She picks up boxes of her things, places them on a cart, and pus

hes the cart to the moving van. Which term best describes the type of force Carmen uses?
A. contact
B. friction
C. gravity
D. noncontact
Physics
2 answers:
AleksandrR [38]3 years ago
6 0

Answer:

B because of the friction from the wheels

Savatey [412]3 years ago
6 0
B . because the friction of the wheels .
You might be interested in
Is the earth clean...? <br> A. hell no! <br> B. YES<br> C. I dont know.
Tamiku [17]

Answer:

A

Explanation:

7 0
3 years ago
Read 2 more answers
1.   A car travels along a straight road to the east for 100 meters in 4 seconds, then go the west for 50 meters in 1 second.
Alla [95]

Answer:

a.Distance = 150 m

b. Displacement = 50 m

Time lapsed = 5 seconds

Explanation:

a. Distance is the change in the position of an object.

The distance covered by the car = 100 + 50

                                                   = 150 m

b. Since displacement is a vector quantity,

Displacement of the car = 100 - 50

                                        = 50 m due east

c. Time elapsed is the time taken for the motion of the car starting from when its starts to when it stops.

Thus, the time elapsed = 4 + 1

                        = 5 seconds

4 0
3 years ago
A beam of light strikes one face of a window pane with an angle of incidence of 30.0°. The index of refraction of the glass is 1
natka813 [3]

Answer:

(a). The angle of refraction is 19.26°.

(b). That is proved that the rays in air on either side of the glass are parallel to each other

Explanation:

Given that,

Angle of incidence = 30.0°

Index of reflection of glass = 1.52

(a). We need to calculate the angle of refraction for the ray inside the glass

Using snell's law

\dfrac{\sin i}{\sin r}=\mu

\sin r=\dfrac{\sin i}{\mu}

Put the value into the formula

\sin r=\dfrac{\sin 30}{1.52}

r=\sin^{-1}(0.329)

r=19.26^{\circ}

(b). We know that,

The incident ray and emerging ray  is equal then the ray will be parallel.

We need to prove that the rays in air on either side of the glass are parallel to each other

Using formula for emerging ray

\dfrac{\sin e}{\sin r}=\mu

\sin e=\sin r\times \mu

Put the value into the formula

\sin e=0.3289\times 1.52

e=\sin^{-1}(0.499)

e=29.9\approx 30^{\circ}

So, \sin i=\sin e

This is proved.

Hence, (a). The angle of refraction is 19.26°.

(b). That is proved that the rays in air on either side of the glass are parallel to each other

6 0
3 years ago
A 4kg bird is flying with a velocity of 4 m/s. What is its kinetic energy?
Yanka [14]
Kinetic energy = 32 J
8 0
3 years ago
HELP SCIENCE WORK ON MOTION DUE!
Anna71 [15]
Huh? Wheres the question at?
7 0
3 years ago
Other questions:
  • Consider a long cylindrical charge distribution of radius R with a uniform charge density rho. Find the electric field at distan
    9·1 answer
  • Hi :) In a pendulum experience , what affects the period &amp; explanation too? Thank you sm :))
    11·1 answer
  • How has technology influenced theories over time?
    12·1 answer
  • The gravitational force between Earth and the Sun is a two way force. Both the planet and the Sun attract each other. However, E
    8·2 answers
  • The very top of the film shows no reflected light, indicating that the thickness is less than 1/4 the wavelength of visible ligh
    12·1 answer
  • 0.5 kg air hockey puck is initially at rest. What will it’s kinetic energy be after a net force of .8 N acts on it for a distanc
    12·1 answer
  • Friction occurs when microscopic hills and valleys stick together<br><br> true or false
    12·2 answers
  • A car mass 600kg starts from rest moving uniform acceleration 0.2 m/s^2 after 60 seconds collides with stationary pick up van of
    8·1 answer
  • Find mass of the object
    7·1 answer
  • You're holding an open house for Brenda. Walt and Mary walk in and ask you for a flyer that gives details about the property. At
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!