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
Fed [463]
3 years ago
7

How do you find the average speed of an object?

Physics
2 answers:
kozerog [31]3 years ago
8 0

Answer: s =d/t

Explanation:

Aleonysh [2.5K]3 years ago
5 0

Answer:

Average speed is total distance divided by total time.

v = d / t

You might be interested in
Suppose the demand for air travel decreases (as illustrated in the graph below). A decrease in demand _____ the equilibrium pric
vfiekz [6]

Answer:

decreases, decreases

Explanation:

  • A decrease in the demand will create a fall in equilibrium prices and the quantity supplied will also decrease. As the equilibrium prices in the market are the price in which the quantity demanded equals to quantity supplied.  
  • If the demand for the air decreases then the quantity of the air travel will also decrease and thus when the supply and demand change so do the changes associated with the equilibrium prices.
4 0
3 years ago
Explain why a book placed on a table does not move?
kifflom [539]

Answer:

The force that the book exerts down on the table is equal to the force the table exerts upward.

Explanation:

I am 100% positive. That results in balanced forces which is why it does not move. If you did want it to move, you would apply unbalanced forces.

4 0
3 years ago
Read 2 more answers
The velocity of a projectile at launch has a horizontal component vh and a vertical component vv. When the projectile is at the
Usimov [2.4K]

Answer:

- horizontal component of the velocity: v_h (because it is constant)

- vertical component of the velocity: 0

- vertical component of the acceleration: -g=-9.8 m/s^2 (downward)

Explanation:

The motion of a projectile consists of two independent motions:

- Along the horizontal direction, there are no forces acting on the projectile (if we neglect air resistance), therefore the horizontal acceleration is zero and the horizontal component of the velocity, vh, is constant

- Along the vertical direction, there is only one force acting on the projectile: the force of gravity, downward, which produces a constant downward acceleration of g=9.8 m/s^2. As a consequence, the vertical component of the velocity changes according to

v_v(t) = v_v-gt

where vv is the initial vertical velocity and t the time. According to this equation, the vertical component of the velocity decreases first, then becomes zero at the point of maximum height, then becomes negative (= changes direction and points downward)

So, in summary, at the highest point of the trajectory we have:

- horizontal component of the velocity: v_h (because it is constant)

- vertical component of the velocity: 0

- vertical component of the acceleration: -g=-9.8 m/s^2 (downward)

3 0
3 years ago
A lever is used to lift a heavy weight. The length of the input arm of the lever is 3 m, the length of output arm is 1 m.
Romashka-Z-Leto [24]

Answer: 13inch

Explanation:

8 0
3 years ago
how long does it take a 750watt heater operating at full rating to rais the temperature of 1kg of water From 40°C to 70°C {S.H.C
siniylev [52]

Answer:

168 seconds (2 min 48 s)

Explanation:

Find the heat absorbed by the water.

q = mCΔT

q = (1 kg) (4200 J/kg/K) (70°C − 40°C)

q = 126,000 J

Power is energy per time.

P = q / t

750 W = 126,000 J / t

t = 168 s

It takes 168 seconds (2 min 48 s).

6 0
3 years ago
Other questions:
  • Jamal combined baking soda and vinegar but he is having trouble determining if what he observed is a chemical reaction or a phys
    15·2 answers
  • What is different about the different parts of the electromagnetic spectrum
    13·1 answer
  • A capacitor is connected to a power source and begins charging. What causes the capacitor to stop charging while it is still con
    10·1 answer
  • A Galilean telescope adjusted for a relaxed eye is 36.2 cm long. If the objective lens has a focal length of 39.5 cm , what is t
    13·1 answer
  • A dielectric material is inserted between the charged plates of a parallel-plate capacitor. Do the following quantities increase
    12·2 answers
  • A construction worker uses an electrical device to attract fallen nails and sharp objects from a construction site. What is caus
    10·1 answer
  • The question is on the image below.
    11·1 answer
  • A wire is joined to points X and Y in the circuit diagram shown.How does the circuit change when the wire is added?
    6·2 answers
  • Do man made elements have a greater number than natural elements
    7·1 answer
  • A man kicks the 150-g ball such that it leaves the ground at an angle of 60° and strikes the ground at the same elevation a dist
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!