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
Kamila [148]
3 years ago
15

Explain why there is no acceleration horizontally on an object in Projectile Motion. A. There is no acceleration horizontally be

cause velocity is constant in the x- direction. B. There is no acceleration horizontally because velocity increases in the x- direction. C. There is no acceleration horizontally because velocity decreases in the x-direction . D. There is no acceleration vertically because velocity is constant in the y -direction .
Physics
1 answer:
Jobisdone [24]3 years ago
4 0

Answer:

Option  A is correct.

Explanation:

The force of gravity does not affect the horizontal component in projectile motion; a projectile maintains a constant horizontal velocity. So there is no acceleration ( a=0 ) in horizontal direction as velocity remains constant.

You might be interested in
Based on the most widely accepted scientific explanation, elements began to form shortly after the big bang. Which of the follow
worty [1.4K]
Big Bang is a theory that, as stated above, has grown to become widely acceptable scientific explanation of the origin of things. Research would say that according to this theory, the Earth originated billion years ago through an explosive of a highly energized point.

Through this explosion, the elements were formed. However, only the lightest of the elements including hydrogen and helium, with traces of lithium and beryllium. From the choices, the answer would have to be the second choice, helium.

Answer: B. helium
5 0
3 years ago
Read 2 more answers
Suppose you are an astronaut and you have been stationed on a distant planet. You would like to find the acceleration due to the
Maksim231197 [3]

Answer:

<h3> 1.40625m/s²</h3>

Explanation:

Using the equation of motion expressed as v = u+gt where;

v is the  final velocity of the ball

u is the initial velocity

g is the acceleration due to gravity

t is the time taken

Given

u = 9m/s

v = 0m/s

t = 6.4s

Required

acceleration due to gravity g

Since the rock is thrown up, g will be a negative value.

v = u+(-g)t

0 = 9-6.4g

-9 = -6.4g

6.4g = 9

divide both sides by 6.4

6.4g/6.4 = 9/6.4

g = 1.40625m/s²

Hence the acceleration due to gravity on the planet is  1.40625m/s²

6 0
3 years ago
What is the relationship between amplitude and frequency of a wave?.
kondaur [170]

Answer:

The relationship between the wave's amplitude and frequency is such that it is inversely proportional to the frequency. The amplitude decreases as the frequency increases. The amplitude increases as the frequency decreases. The higher the energy of a wave, the higher the amplitude. The lower the energy, the lower the amplitude. Energy has no effect on wavelength, speed, or frequency, only the amplitude.

Explanation:

5 0
2 years ago
An electron with charge −e and mass m moves in a circular orbit of radius r around a nucleus of charge Ze, where Z is the atomic
shepuryov [24]

Answer:

v=\sqrt{\frac{kZe^2}{mr}}

Explanation:

The electrostatic attraction between the nucleus and the electron is given by:

F=k\frac{(e)(Ze)}{r^2}=k\frac{Ze^2}{r^2} (1)

where

k is the Coulomb's constant

Ze is the charge of the nucleus

e is the charge of the electron

r is the distance between the electron and the nucleus

This electrostatic attraction provides the centripetal force that keeps the electron in circular motion, which is given by:

F=m\frac{v^2}{r} (2)

where

m is the mass of the electron

v is the speed of the electron

Combining the two equations (1) and (2), we find

k\frac{Ze^2}{r^2}=m\frac{v^2}{r}

And solving for v, we find an expression for the speed of the electron:

v=\sqrt{\frac{kZe^2}{mr}}

6 0
2 years ago
What wavelength of light (in nm) is associated with a frequency of 8.01E15 Hz?
AlekseyPX

Answer: 37.5 nm

Explanation: speed of light c= 3.00·10^8 m/s.

I use same accuracy to speed of light as it's for frequency.

Frequency f= 8.01·10^15 1/s

Speed c = wavelength · frequency

Wavelength = c/f = 3.745·10^-8 m

6 0
2 years ago
Other questions:
  • Explain why your body feels like it is being pushed back when the car starts back up again
    15·2 answers
  • A circus performer is putting together an act that involves lying on a bed of nails without getting hurt. The tip of each nail h
    9·1 answer
  • Unpolarized light passes through three polarizing filters. The first one is oriented with a horizontal transmission axis, the se
    5·1 answer
  • 2/25/20 or 2/28/20 Dispatch #53
    6·1 answer
  • A car is moving with a constant acceleration. At t = 5.0 s its velocity is 8.0 m/s and at t = 8.0 s its
    10·1 answer
  • 5. Find the mass of a car that is traveling at a velocity of 35 m/s West.
    15·1 answer
  • Which of the following is an example of a luminous object? <br>Dog<br> Tree <br>Candle <br>Moon​
    15·1 answer
  • A Yugo can accelerate from rest to a speed of 28 m/s in 20 s. What is the average acceleration of the car? What distance does it
    5·1 answer
  • Un Iceberg, con forma aproximada a la de un paralelepípedo (rectángulo en 3D), flota en el mar de modo que la parte fuera del ag
    12·1 answer
  • 2. An overseas jet requires 6 hours to fly 9700 km. What is the jet's speed?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!