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
Dafna11 [192]
3 years ago
9

Example 2.1

Physics
1 answer:
tatiyna3 years ago
8 0

Answer:

5 min 20 km --------

Explanation:

5 min 20 km --------

You might be interested in
Vector A⃗ points in the negative y direction and has a magnitude of 5 km. Vector B⃗ has a magnitude of 15 km and points in the p
Harlamova29_29 [7]
C
Because it’s B-A if u reared the question u will understand
7 0
3 years ago
What is an electric circuit?
klemol [59]

<h3>Answer: any path that allows electrons to flow</h3>

An electrical circuit is a path in which electrons from a voltage or current source flow. ... The part of an electrical circuit that is between the electrons' starting point and the point where they return to the source is called an electrical circuit's "load".

7 0
3 years ago
Read 2 more answers
A 2430 pound roller coaster starts from rest and is launched such that it crests a 105 ft high hill with a speed of 59 mph. The
Rudik [331]

Answer:

Explanation:

Given

Weight of roller coaster is W=2430\ pound

mass of roller coaster m=\frac{W}{g}=\frac{2430}{32.2}=75.45

Distance traveled by roller coaster d=396\ ft

drag force f_d=85\ pounds

velocity at top v=59 mph\approx 86.53\ ft/s

Suppose E is the initial energy

Conserving Energy at bottom and top

E=\frac{1}{2}mv^2+mgh+f_d\cdot d

E=0.5\times 75.45\times 86.53^2+2430\times 105+85\times 396

E=2.9\times 10^5\ foot-pound

5 0
3 years ago
The position of a certain airplane during takeoff is given by x=1/2 *bt2, where b = 2.0 m/s2 and t = 0 corresponds to the instan
Serhud [2]

Answer:

1362000 kgm/s

Explanation:

So the total mass combination of the plane and the people inside it is

M = 35000 + 160*65 = 45400 kg

After 15 seconds at an acceleration of 2 m/s2, the plane speed would be

V = 2*15 = 30 m/s

So the magnitude of the plane 15s after brakes are released is

MV = 45400 * 30 = 1362000 kgm/s

5 0
3 years ago
the carnot cycle attempts to model the most efficient possible process by avoiding what? adiabatic processes isothermal processe
kobusy [5.1K]

The carnot cycle attempts to model the most efficient possible process by avoiding irreversible processes.

In essence, the Carnot cycle is a reversible cycle made up of four other reversible processes. A reversible process is one that can be thought of as consisting of a sequence of equilibrium stages because it is carried out endlessly slowly.

Essentially, this means that any reversible cycle can be performed in reverse and that the amount of work or heat exchanged along the forward and backward pathways is the same.

It goes without saying that such reversible processes are not possible because they would take an unlimited amount of time. Therefore, the Carnot Engine is described as an idealized heat engine that uses the Carnot Cycle, a reversible cycle.

Learn more about carnot cycle here;

brainly.com/question/13040188

#SPJ4

5 0
1 year ago
Other questions:
  • A(n) __________ exhibits sedimentary layers that are parallel to each other above and below an erosive surface.
    13·1 answer
  • A __________ has distinct properties and composition that never vary. A) solution B) molecule C) pure substance D) heterogeneous
    7·2 answers
  • If earth began to shrink, but its mass remained the same, what would happen to the value of g on earth's surface?
    14·1 answer
  • A hot air balloon is rising vertically with a velocity of 10.0 feet per second. A very small ball is released from the hot air b
    13·1 answer
  • How to calculate kinetic energy of a projectile at the highest point of a projectile?
    10·2 answers
  • An element is a substance that cannot be broken down chemically into
    7·2 answers
  • Witch unit is used to measure mass in the metric system
    8·2 answers
  • Knowing that a ball traveled 16 feet in one second, how much will it travel in the first quarter second?
    15·2 answers
  • A periodic wave of frequency f and speed v travel what distance in one period?
    7·1 answer
  • When running a long distance during the Texas summer which of the following would happen?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!