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
Misha Larkins [42]
2 years ago
13

1. What is the acceleration in m/s^2 of a car that slows from 50mi/hr to 25 mi/hr in 5 minutes?

Physics
1 answer:
Molodets [167]2 years ago
3 0

Answer:

10

Explanation:

you have to divide 25 and 50 the multiply 2

You might be interested in
Match each action to its result. The strength of the electromagnet increases. The electromagnet turns off. The poles of the elec
IceJOKER [234]

Answer:

1) The strength of the electromagnet increases   →   Place a magnetic core inside the coil of wire

2) The electromagnet turns off    →    Turn off the battery supply

3) The poles of the electromagnet reverse     →    Change the direction in which the current flows

Explanation:

when current passes through a coil it behaves a an electromagnet.

Magnetic field strength is given by

B = μ N I  

N is no of turns and

I is the current through coil

μ is permeability of the medium or core in the coil.

1). Magnetic core increase permeability μ so it will strengthen magnetic field:

B = <u>μ</u> N I

2). When the battery turns off current becomes zeroi.e I=0

So B = μ N * 0

⇒ B = 0

so electromagnet turns off

3). Direction of magnetic field can be determine by right hand rule, i.e curl the fingers in the direction of current, thumb will point in the direction of north pole.

so changing current direction will change direction of magnetic field.

5 0
3 years ago
Which of the following examples illustrates static friction?
vivado [14]

Answer:

A box sits stationary  on a ramp

Explanation:

Static friction is a force which keeps an object at rest as it is in the case of the box. It has to be overcome for the object to be set into motion.

Static force of friction is calculated as follows:

F= μη

F is static force of friction.

μ is the coefficient of static friction.

η is the normal force.

6 0
3 years ago
Which of these processes describes the effect Earth's atmosphere has on Earth's hydrosphere?
Ede4ka [16]
Warm, moist air increasing ocean temp
6 0
3 years ago
Why is figure 5 an unhelpful visualization tool for this data set? <br><br> Please help!
Paraphin [41]

Explanation:

Because the temperature and the radiation are not correlated, they're not represented as functions of each other, they're represented as independent variables thus using graph 5 you cannot figure out how one affect another

8 0
2 years ago
The temperature of a room is 77°F what would be the temperature in Celsius scale​
anygoal [31]

Formulas change from F to degree C : C = ( F - 32 )/1.8

so we have (77-32)/1.8 = 25 oC

ok done. Thank to me :>

5 0
3 years ago
Other questions:
  • Matthew throws a ball straight up into the air. It rises for a period of time and then begins to drop. At which points in the ba
    6·2 answers
  • Which of the following is a likely life cycle of a star?
    13·1 answer
  • Work is being done in which of these situations? All motions are at a constant velocity (including velocity = zero).
    5·2 answers
  • What clues are useful in reconstructing pangaea
    6·2 answers
  • Tranh slowed his skateboard as he
    11·1 answer
  • Asap PLEASE HELP!!!!<br> Match these vocabulary words with their definitions.
    15·1 answer
  • An object change in position according to its reference point is called
    11·2 answers
  • What happens when a glass rod and silk cloth are rubbed with each other?
    13·2 answers
  • ANYONE HELP ME PLEASE!
    9·1 answer
  • In the sum of 4.34 + 5.66, the number of significant figures is
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!