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
zalisa [80]
3 years ago
6

A dog runs down his driveway with an initial speed of 5 m/s for 8 s, and then uniformly increases his speed to 10 m/s in 5 s.

Physics
1 answer:
MakcuM [25]3 years ago
8 0
Acceleration is given by change in velocity divided by change in time, so his acceleration should just be (10-5)/5 which is [tex] \frac{5}{2} \frac{m}{s^{2}} [tex]

The driveway is 40 meters plus 225/4. You can do the math.
You might be interested in
If you separate vector B into its components. How many components will it have? Those components will be called?
Inessa [10]

The vector B will have two components and those components will be called resultant vectors.

<h3>What is a component vector?</h3>

A component vector is a unit vector that represents a given vector in a particular direction.

A vector can be represented in x - direction and y - direction.

  • x - component of the vector = Bcosθ
  • y - component of the vector = Bsinθ

Thus, the vector B will have two components and those components will be called resultant vectors.

Learn more about component vectors here: brainly.com/question/13416288

#SPJ12

3 0
2 years ago
When an electron moves 2.5 m in the direction of an electric field, the change in electrical potential energy of the electron is
anygoal [31]
In the field of electromagnetism, when two charged plates that are situated opposite to each other by a certain distance, it forms an energy called the electric field. This energy is due to the difference in potential energy with respect to distance. Thus,

E = V/d

However, the voltage in volts is energy per coulomb. Thus,
V = (8x10-17 J/electron)*(1electron/1.60218x10^-19 C)
V = 499.32 volts

Therefore,

E = 499.32 volts /2.5 m
E = 199.73 N/C

The electric field that caused the change in potential energy is equal to 199.73 Newtons per Coulomb.
7 0
3 years ago
Which law is used to find the magnitude of a magnetic force?
Talja [164]

Answer:

The Flemings left hand rule is used to find the magnitude of a magnetic force

Explanation:

Fleming's left hand rule states that if the first three fingers are held mutually at right angles to one another, then the fore finger points into the direction of magnetic field the middle finger in the direction of current while the thumb points in the direction of force.

Mathematically

Magnetic Force F= BILsinθ

Where

B= magnetic field density Tesla

I= current

L= length of conductor

θ= angle of conductor with field

3 0
3 years ago
What needed to be present in marine mud to form fossils fuels?
garri49 [273]
It would be oraganic matter I think.
6 0
3 years ago
Read 2 more answers
vaccines are used to prevent disease. they are given to patients as dead or weakened forms of a virus. which disease would most
Anton [14]
Flu,because it has the capacity of better fight influenza and it has no bad side effects and it can be taken easily as nasal spray or in the arm.
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the velocity of the object at 20.0s
    10·1 answer
  • Explain how you could find out whether of not an unknown liquid is water
    11·2 answers
  • You should be extra careful during the hours of sunrise, sunset, and nighttime because
    9·1 answer
  • A student is given a problem in which a car speeds up from rest to 30 m/s in 6 seconds. The student states that the acceleration
    10·1 answer
  • Which of these things poses the greatest hazard to communications satellites? a) photons from the Sun b) solar magnetic fields c
    12·2 answers
  • A boat can move at a constant velocity of 8 km/h in still water. How long will it take for the boat to move 24 km?
    5·1 answer
  • Help me please, ;) I could use it
    13·2 answers
  • Disadvantages of magnets
    11·1 answer
  • Cual es la respuesta a esta p'regunta.
    11·1 answer
  • Will give brainiest to best answer
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!