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
Oksi-84 [34.3K]
3 years ago
13

Select ALL of the following statements that provide evidence that there is friction acting on a cart moving along a level track.

[you can pick more than one answer!]
The cart slows down while moving down the track

The cart's speed increases only when the hand is in contact with the cart

The temperature of the track increases as the car moves over it

The wheels are warmer after the cart moves down the track
Physics
1 answer:
Sati [7]3 years ago
6 0

Answer:

1st and 4th one................

You might be interested in
Two representative elements are in the same period of the periodic table. Which statement correctly describes the atoms of the t
oksian1 [2.3K]

Elements in the periodic table are arranged in the increasing order of their atomic number.

An atom will contain equal amount of protons and electrons. If two elements are in same period of periodic table then these elements will have same number of electrons.

Helium is one of the seven elements which are called as noble gases. This gas is odorless, tasteless and colorless which makes it unique from other elements.

It has two valence electrons while atoms of other elements in the group have 8 valence electrons.

Lithium has one valence electron, while calcium atom has 2 valence electrons.

The highest level of energy is due valence electrons of an atom.  The correct answer is Lithium.

Fluorine element has 9 electrons. There are 2 electrons in the first energy level and seven electrons in the second energy level.

Learn more at brainly.com/question/24373385

7 0
3 years ago
Which are the upthrust forces?
anygoal [31]

Explanation:

An object that is partly or completely submerged experiences a greater pressure on its bottom surface than on its top.

6 0
3 years ago
Read 2 more answers
What is the frequency of a wave with a wavelength of 12 meters and a velocity of 4 m/s?
trasher [3.6K]

Answer:

0.33 hz

Explanation:

the formula for the frequency in this situation is f=v/wavelength

8 0
3 years ago
Adding resistors in series changes the total resistance of a circuit by
skelet666 [1.2K]

Answer:

Increasing the resistance

Explanation:

6 0
3 years ago
A rocket is fired at a 45° angle, what is the direction of the horizontal velocity vector at the peak height?
Bess [88]

Answer:

B: Horizontally to the left

Explanation:

Horizontal velocity is always constant throughout the entire trajectory of the rocket and acts in the horizontal direction in which the rocket was launched. This is because gravity only acts in the downwards vertical direction.

So in order words at peak height, horizontal velocity is in the horizontal direction in which the rocket was launched.

So if it was to the left, then direction is left but if right, then direction is right.

Looking at the options, the most appropriate will be:

Horizontally to the left

7 0
3 years ago
Other questions:
  • SOMEONE PRETTY PLEASE FILL THIS OUT Its the ball drop project Lab Report Title: Formulate Hypothesis: What are your independent,
    11·1 answer
  • How does the range of the pumpkin change if its initial velocity is tripled (keeping the angle fixed and less than 90∘)? How doe
    12·1 answer
  • A projectile's horizontal range on level ground is r=v20sin2θ/g. at what launch angle or angles will the projectile land at half
    6·1 answer
  • Pink
    7·1 answer
  • Find the magnitude of the torque produced by a 4.5 N force applied to a door at a perpendicular distance of 0.26 m from the hing
    10·1 answer
  • Whats potential energy?
    8·2 answers
  • A string roller of scissors is an example of both lever and wedge​
    11·1 answer
  • In a pneumatic lift, compressed air exerts a force on a piston with a radius of 10.00 cm. This pressure is transmitted to a seco
    12·1 answer
  • In vehicles equipped with an anti-lock brake system
    11·1 answer
  • 16. PHYSICS The height h of a falling object is given by h = vt - gt2, where vis the initial velocity of the object, t is time,
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!