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
svlad2 [7]
3 years ago
13

Please help me.

Physics
1 answer:
navik [9.2K]3 years ago
4 0
Vf=(35.0)+(-9.8)(2)
the answer would be 15.4 m/s

You might be interested in
What are three elements that are in the same group
cluponka [151]
Iodine, chloride, and bromide
3 0
3 years ago
In physics, a field refers to a quantity that has a value for every point in a space. In a sense, a field is like a function in
enyata [817]

Answer:

Explanation:

a ) Temperature at ground level is a field and it is scalar field .At any point in space near ground level  , the temperature is specific so it is a field .  It is scalar  because temperature has no direction .

b )

 Wind velocity at 100 feet above the ground is also a field but it is a vector field . At any point in space , the wind velocity is specific so it is a field .  It is vector   because velocity  has a particular  direction at any point .

c )

Gravitational force on Roessler Hall is a vector field because gravitational force also depends on location in space and it has direction.

d )

Height of a person in your group is not a space because it does not depend upon  location is space . It is same for all location .

e )

Height (above sea level) of the ground is a field  because it also depends upon location in space . It is scalar field .

f )

Slope of the surface of the earth is a scalar field .

3 0
3 years ago
Suppose an empty grocery cart rolls downhill in a parking lot. The cart has a maximum speed of 1.3 m/s when it hits the side of
Ket [755]

The cart comes to rest from 1.3 m/s in a matter of 0.30 s, so it undergoes an acceleration <em>a</em> of

<em>a</em> = (0 - 1.3 m/s) / (0.30 s)

<em>a</em> ≈ -4.33 m/s²

This acceleration is applied by a force of -65 N, i.e. a force of 65 N that opposes the cart's motion downhill. So the cart has a mass <em>m</em> such that

-65 N = <em>m</em> (-4.33 m/s²)

<em>m</em> = 15 kg

4 0
3 years ago
Two identical point charges in outer space are held apart at a distance D. As soon as the charges are released, each begins movi
AVprozaik [17]

Answer:

B. 4a

Explanation:

Force between the charges is inversely proportional to the square of the distance

=> Force will be 4 times and acceleration will be 4a  

=> Answer b).

6 0
3 years ago
Read 2 more answers
the resistivity of a given wire of cross session area 0.7mm² is 49×10⁴.calcuate the resistance of a 2m lenght of wire​
sp2606 [1]

R = 1.4GΩ.

The relation between the resistance and the resistivity is given by the equation R = ρL/A, where ρ is the resistivity of a given material, L is the length and A is the cross-sectional area of the material.

To calculate the resistance of a wire of L = 2m, ρ = 49x10⁴Ω.m and A = 0.7mm² = 0.7x10⁻³m² we have to use the equation  R = ρL/A.

R = [(49x10⁴Ω.m)(2m)/0.7x10⁻³m²

R = 98x10⁴Ω.m²/0.7x10⁻³m²

R = 1.4x10⁹Ω = 1.4GΩ

6 0
3 years ago
Other questions:
  • A photon of wavelength 2.78 pm scatters at an angle of 147° from an initially stationary, unbound electron. What is the de Brogl
    7·1 answer
  • What is the angle between the electric field and the axis of the filter?
    15·1 answer
  • Light and radio waves travel through a vacuum in a straight line at a speed of very nearly 3.00 ´ 108 m/s. How far is light year
    14·1 answer
  • Explain the advantages of using parallel circuits to series circuits in wiring rooms
    9·1 answer
  • Of the following properties of a wave, which of the following is independent of the others? amplitude speed wavelength frequency
    14·2 answers
  • HELP PLEASE ASAP !!!!Question 5 of 15
    11·2 answers
  • How are you going to identify a tool that is still functional​
    13·1 answer
  • Highest density if electrostatic charge in a metal is found in​
    14·1 answer
  • Everyone open this please!
    13·2 answers
  • a lunar probe is moving 1670 m/s at a 73.0 angle. it needs to land on the moon 3.71 x 10^8 m away in a 46.0 direction in 8.64 x
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!