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
artcher [175]
3 years ago
13

Which BEST describes the speed and velocity of the graph?

Physics
2 answers:
Neko [114]3 years ago
6 0
I think the answer is A (sorry if it isn't).
Kazeer [188]3 years ago
6 0
This is tricky, but the correct answer is A.

Choice-D is also true.  We can't COMPLETELY determine velocity
from the graph, because an essential part of velocity is the DIRECTION
of motion, and the graph doesn't tell us anything about the direction.

But even though we can't COMPLETELY determine velocity from
the graph, we DO know that velocity is changing, because the speed
is definitely changing, and speed is the other big part of velocity.

The graph shows clearly that speed is changing.  That right there
tells us that velocity is also changing, and we can pick choice-A.
You might be interested in
A golf ball is hit with an initial velocity of 20m/s at an angle of 30° to the horizontal. calculate;
svp [43]

Answer:

tcucugxojfjgfojcigxuogoudyifodtufukdutfuocyjxuogu

3 0
2 years ago
6) Why do electromagnetic waves not require a medium for travel?
sergij07 [2.7K]
Electromagnetic waves are a type of
transverse wave. This wave does not
require media for travel. As the name
implies a wave, these waves indicate
electrical and magnetic properties. No
cost whatsoever happened to the wave. Electromagnetic waves work with the
laws of reflection and refraction. They
travel the straight line in a vacuum at a
speed of 3 x 108 ms-1. The intensity of
electromagnetic waves depends on the
strength of the electric field.
8 0
2 years ago
Let's take two balls, each of radius 0.1 meters and charge them each to 3 microCoulombs. Then, let's put them on a flat surface
salantis [7]

Explanation:

First, we will calculate the electric potential energy of two charges at a distance R as follows.

                   R = 2r

                      = 2 \times 0.1 m

                      = 0.2 m

where,    R = separation between center's of both Q's. Hence, the potential energy will be calculated as follows.

                U = \frac{k \times Q \times Q}{R}

                    = \frac{8.98 \times 10^{9} \times (3 \times 10^{-6} C)^{2}}{0.1}

                    = 0.081 J

As, both the charges are coming towards each other with the same energy so there will occur equal sharing of electric potential energy between these two charges.

Therefore, when these charges touch each other then they used to posses maximum kinetic energy, that is, \frac{U}{2}.

Hence,   K.E = \frac{U}{2}

                     = \frac{0.081}{2}

                     = 0.0405 J

Now, we will calculate the speed of balls as follows.

                 V = \sqrt{\sqrt{\frac{2 \times K.E}{m}}

                     = \sqrt{\sqrt{\frac{2 \times 0.0405}{4 kg}}

                     = 0.142 m/s

Therefore, we can conclude that final speed of one of the balls is 0.142 m/s.

6 0
2 years ago
Asteroids are _____ than planets but _____ meteoroids.
a_sh-v [17]
B smaller;larger than
6 0
3 years ago
DEFINE HEAT CAPACITY
Rudiy27
The number of heat units needed to raise the temperature of a body by one degree.
4 0
3 years ago
Read 2 more answers
Other questions:
  • To understand the terms in the Doppler shift formula.
    15·1 answer
  • Liquid nitrogen boils at 77.2 k. what is this temperature in degrees celsius
    10·1 answer
  • Standing at the same location, which organism would have the GREATEST gravitational attraction to the earth?
    13·2 answers
  • What sort of element can be found in Group 13 of the periodic table?
    14·1 answer
  • Which action best demonstrates the transformation of mechanical energy to heat energy? Select one: a. Digesting a meal b. Burnin
    6·1 answer
  • PLEASE HELP!! WILLING TO GIVE 20 POINTS!
    14·1 answer
  • Obtain the zeroes of polynomial
    8·1 answer
  • This is my last assignment plz help
    6·2 answers
  • What does the universe look like on very large scales?
    14·1 answer
  • A ball is thrown directly downward with an initial speed of 7.30 m/s, from a height of 29.0 m. After what time interval does it
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!