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
k0ka [10]
4 years ago
7

How can an object have no speed but still be accelerating

Physics
1 answer:
Lena [83]4 years ago
5 0
An object can be accelerating if it changes direction
You might be interested in
NASA sends an unmanned lander to test conditions on the surface of Mars. What is the magnitude of the gravitational force acting
kozerog [31]

Answer:

The magnitude of the gravitational force acting on the lander on the surface of Mars is 512.46 N.

Explanation:

The Universal law of gravity is define as:

F = G \frac{M.m}{R^{2}}  (1)

Where F is the gravitational force, G is gravitational constant, M is the mass of Mars, m is the mass of the lander and R is the radius of Mars.

Before replacing the values in equation 1 it is necessary to express the radius of mars in terms of meters:

R = 3397 kmx\frac{1000 m}{1 km} ⇒ R = 3397000 m

Finally, equation 1 can be used:

F = (6.67x10^{-11} N.m^{2}/Kg^{2}) \frac{(6.42x10^{23} kg)(138.1 kg)}{(3397000 m)^{2}}

F = 512.46 N

Hence, the magnitude of the gravitational force acting on the lander on the surface of Mars is 512.46 N.

4 0
3 years ago
Why it is easier to lift a small stone but harder to lift heavy one on the surface of Earth​
Nesterboy [21]

Answer:

since small stone has less mass so the gravitational pull of the earth is lesser in case of this but this is not for the bigger stone as the gravitational pull of the earth is greater...

PLEASE MARK BRAINLIEST!!!!!

8 0
3 years ago
a mountain biker cycling a trail traveling at 5.4 m/s begins to slow down when she notice a wooden bridge ahead has flooded. if
andrew-mc [135]

Answer:

t = 5.56 s

Explanation:

In order to calculate the time interval taken by the mountain biker to come to a stop, we will use third equation of motion and first find the deceleration:

2as = Vf² - Vi²

where,

a = deceleration = ?

s = distance = 15 m

Vf = Final Velocity = 0 m/s

Vi = Initial Velocity = 5.4 m/s

Therefore,

2a(15 m) = (0 m/s²) - (5.4 m/s)²

a = - 0.972 m/s²

Now, we use 1st equation of motion:

Vf = Vi + at

therefore,

0 m/s = 5.4 m/s + (-0.972 m/s²)(t)

t = (5.4 m/s)/(0.972 m/s²)

<u>t = 5.56 s</u>

5 0
3 years ago
If 2 electrically charged objects repel one another , which of the statements could be true, one object has more electrons, the
fiasKO [112]
Both objects have the same electrical charge. Opposite charges attract. And if they were neutral they would not do anything.
6 0
3 years ago
Read 2 more answers
Why do clastic sedimentary rocks generally form underwater?
alekssr [168]
Because they eventually erode and then break and end up forming underwater.
6 0
3 years ago
Other questions:
  • If no friction acts on a diver during a dive, then which of the following statements is true? A) The total mechanical energy of
    11·2 answers
  • 1. El puente mas largo del mundo es el puente Akashi Kaikyo, en Japón. El puente mide 3910 m de largo y está construido con acer
    9·1 answer
  • Compute the acceleration of gravity for a given distance from the earth's center, dist_center, assigning the result to accel_gra
    12·1 answer
  • Newton’s law of universal gravitation stars that every object in the universe attracts every other object
    7·1 answer
  •               How do crabs support and protect themselves without a skeleton
    11·2 answers
  • 29. Use the figure to determine in what direction the north magnetic pole of the compass will point. what type of magnetic pole
    6·1 answer
  • Do all metals stick to magnets? Give an example. I NEED HELP FASTT
    5·1 answer
  • A person who sits on the right-hand seat of the car that is making a left turn slides over to the right. What is the possible re
    12·2 answers
  • the distance between two charges q a and q b is r and the force between them is F. What is the force between them if the distanc
    11·2 answers
  • In example 18. 4 of the text, the deflection angle of the laser beam as it exits the prism is 22. 6º. If the prism had been made
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!