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
Harman [31]
3 years ago
15

Acceleration is best defined as the rate of change of __________ of an object. A. position B. force C. speed D. velocity 2. Whic

h of the following describes acceleration? A. s/m B. m/s C. m/s2 D. m2 3. Which of the following is the main difference between speed and velocity? A. Speed has direction and velocity B. Speed is measured over time C. Velocity has both speed and direction D. Speed is constant
Physics
2 answers:
Fittoniya [83]3 years ago
7 0
Velocity!
Hope this helps!
oksian1 [2.3K]3 years ago
3 0
Acceleration is the rate at which an object changes its' velocity. It's measured in m/s^2
D. 
C.
velocity is the rate of change of an objects position. 
C. velocity has speed and direction
(speed does not have direction)
You might be interested in
The relationship that exists between gravity and distance and mass respectively.
ruslelena [56]

Answer:

D...............................

7 0
3 years ago
2. A student places an object with a mass of m on a disk at a position r from the center of the disk. The student starts rotatin
ycow [4]

Answer:

\frac{0.065}{r}

Explanation:

The maximum velocity of an object moving in a curve beyond which it will slide off the curve is given by the relationship in equation (1);

v=\sqrt{\mu gr}....................(1)

where \mu is the coefficient of friction between the object and the surface of the curve, g is acceleration due to gravity and r is the radius of the curve.

Given;

v = 0.8m/s

g = 9.81m/s^2

r = ?

\mu=?

In order to solve for \mu, we can simply make it the subject of formula from equation (1) as follows;

v^2=\mu gr\\hence\\\mu=\frac{v^2}{gr}.................(2)

since we were not given the value of r, we can just substitute other known values, then solve and leave the answer in terms of r.

Therefore;

\mu=\frac{0.8^2}{9.81r}

\mu=\frac{0.64}{9.81r}\\\\\mu=\frac{0.065}{r}

8 0
3 years ago
Help me please!!!
lilavasa [31]
Both planets are similar in shape and have a rocky surface. Not sure about the phases though
7 0
3 years ago
Read 2 more answers
If you move 50 meters in 10 seconds, what is your speed ​
iogann1982 [59]

Explanation:

My answer didn't save :(

8 0
3 years ago
What is the sentence that we use to<br> remember how to convert metric<br> prefixes?
Marrrta [24]

Answer:

The mnemonic I can use to memorize the metric prefixes in this order is: Gigantic Monsters Killed One Million Men Napping Peacefully. All right, so again, gigantic monsters killed one million men napping peacefully.

8 0
3 years ago
Other questions:
  • What must be the same on each side of a chemical equation, because of the law of conservation of matter?
    14·2 answers
  • When joshua brakes his speeding bicycle to a stop, kinetic energy is transformed to select one:?
    6·2 answers
  • A gas is compressed to 75cm3 to a volume of 30cm3. Its temperature remains the same The pressure of the gas after it has been co
    10·1 answer
  • Can anyone give me the description of the element mercury is positioned on the periodic table of elements and a list of other el
    15·1 answer
  • A planet has a period of revolution about the sun equal to T and a mean distance from the sun equal to R. T2 varies directly as
    9·1 answer
  • A wheel that was initially spinning is accelerated at a constant angular acceleration of 5.0 rad/s^2. After 8.0 s, the wheel is
    7·1 answer
  • PLEASE PLEASE HELP AND PUT A REAL ANSWER ;-;. ALSO WILL GIVE BRAINLEST!!
    10·2 answers
  • The projectile launcher shown below will give the object on the right an initial horizontal speed of 5.9 m/s. While the other ob
    10·1 answer
  • What is the correct description for an element?
    15·1 answer
  • In a parallel circuit, what’s happens to the current through each resistor when the voltage is doubled?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!