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
coldgirl [10]
4 years ago
13

Which of the following is true for projectile motion?

Physics
2 answers:
jok3333 [9.3K]4 years ago
8 0
The answer to this question is B, C, and D
A is not true because all projectiles have 3 dimensions


I hope this helps!!!!!!!!!
stich3 [128]4 years ago
8 0

Answer:

When an object experiences gravity as the only force upon it is described as being in projectile motion; gravity causes vertical acceleration; all projectiles have 3 dimensions, while horizontal and vertical motions are independent of each other, and its acceleration is constant. From the options above, the most suitable ones are <em>A. B.</em> and <em>C.</em>

Explanation:

You might be interested in
What do you do if you are measuring something and it is between two whole numbers?
AnnZ [28]
Umm, I guess it really depends on what these numbers are for but what I can say is if you put this under physics then decimals are used very often and help express parts of numbers for this particular problem.And if it's directly between the two then it's 0.50 added to that smaller number,I hope that helps
4 0
3 years ago
A multi-plattered hard disk is divided into 1100 sectors and 40,000 cylinders. There are six platter surfaces. Each block holds
Nat2105 [25]

Answer:

total capacity  = 135,168,000,000 bytes

Explanation:

given data

hard disk divided = 1100 sectors

cylinders = 40,000

block holds = 512 bytes

rotating  rate = 4800 rpm

consider average seek time = 12 msec

to find out

total capacity of this disk

solution

total capacity of this disk are express as

total capacity  = hard disk divided × cylinder  block holds × average seek time ÷ 2

put here value we get

total capacity  =  1100 × 40000 × 512 × 6

total capacity  = 135,168,000,000 bytes

3 0
4 years ago
A car initially traveling at 27.7 m/s undergoes a constant negative acceleration of magnitude 2.00 m/s2 after its brakes are app
lys-0071 [83]

The car's velocity at time <em>t</em> is given by

v=27.7\dfrac{\rm m}{\rm s}+\left(-2.00\dfrac{\rm m}{\mathrm s^2}\right)t

It comes to a stop when <em>v</em> = 0, which happens when

0=27.7\dfrac{\rm m}{\rm s}+\left(-2.00\dfrac{\rm m}{\mathrm s^2}\right)t\implies t=13.85\,\mathrm s

or after about 13.9 s.

In this time, the car travels a distance <em>x</em> given by

x=\left(27.7\dfrac{\rm m}{\mathrm s}\right)(13.85\,\mathrm s)+\dfrac12\left(-2.00\dfrac{\rm m}{\mathrm s^2}\right)(13.85\,\mathrm s)^2=191.823\,\mathrm m

or about 192 m.

In one complete revolution, each tire covers a distance equal to its circumference,

2\pi(0.340\,\mathrm m)\approx2.13628\,\mathrm m

or about 2.14 m.

This means each tire will complete approximately 192/2.14 ≈ 90 revolutions.

8 0
3 years ago
Entrance and exit ramps for freeways in (Figure 1) are often circular stretches of road. As you go around one at a constant spee
LekaFEV [45]

Answer:

27 m/s²

Explanation:

Traveling in uniform circular motion will cause a centripetal acceleration, an acceleration towards the center of the circle.

The acceleration of an object in circular motion is defined as a = v²/r.

Let's set the radius to be 5 m, since it is always unchanging. Solving for the velocity using a = 3 m/s² and r = 3 m gives us:

  • 3 = v²/3
  • 9 = v²
  • 3 = v

The velocity is 3 m/s when the acceleration is 3 m/s² and the radius of the circular path is 3 m.

Now let's triple the velocity: 3 m/s → 9 m/s.

Let's solve for the acceleration using v = 9 m/s and r = 3 m.

  • a = (9)²/3
  • a = 81/3
  • a = 27

The acceleration is 27 m/s² if you triple your speed.

This makes sense because a is directly proportional to v², meaning that if you triple your speed, you increase the acceleration a by a factor of 3², which is a 9 times increase.

  • a = 3 * 9 = 27 m/s²

As a sidenote, doubling your speed would increase the acceleration by a factor of 2² - a 4 times increase.

3 0
3 years ago
Read 2 more answers
Which of the following has the largest momentum?
Scorpion4ik [409]

Answer:

Option b

Explanation:

The formula of momentum is p=mv

where p is the momentum , m is the mass in kg and v is the velocity in m/s, so

a) momentum is

p=mv\\p=5(2)\\p=10

b) momentum is

p=mv\\p=4(3)\\p=12

c) momentum is

here since the rock is sitting on top of a hill which means the object is stationary or in other words the object is at rest, which means if an object is at rest the velocity is 0m/s so momentum is zero of a stationary object because

p=mv\\p=200(0)\\p=0

d) momentum is

p=mv\\p=0.0025(200)\\p=0.5

so the highest momentum is in part b which is 12 so option b is our answer.

4 0
3 years ago
Other questions:
  • The atomic number of oxygen, 8 indicates that there are eight what???
    9·2 answers
  • What factors affect the rate of diffusion?
    10·1 answer
  • Pressure that increases with depth in a swimming pool is called ______________ pressure.
    15·1 answer
  • It is August 1st and you are at a Science Camp in Florida. During an outdoor science quiz, you are asked to identify the tempera
    8·1 answer
  • The swimmer in the pool is making waves when he swims. Choose the sentences that describe both the swimmer’s waves and the waves
    9·1 answer
  • What is Young’s interference? (b) How should the number of observable interference fringes change as the distance between the tw
    12·1 answer
  • 1. A 65 kg student, starting from rest, slides down an 16.2 m high water slide. On the way down, friction does 5700 J of work on
    13·1 answer
  • A car is traveling at the bottom of a 9.00-meter-radius circular hill with a constant speed v. The moment the car is at the bott
    6·1 answer
  • In your own words differentiate Comets Asteroids Meteors Meteoroids and Meteorites​
    8·1 answer
  • It's not really physics it's science but they didn't have a subject for that, anyway the question is.....
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!