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
LenKa [72]
3 years ago
6

PHYSICSSSSS HELPPPPPP

Physics
1 answer:
inessss [21]3 years ago
6 0

Answer:

Explanation:

1). Average speed of a skydiver = \frac{\text{Distance covered}}{\text{Time taken}}

                                                    = \frac{9}{2.5}

                                                    = 3.6 km per minute

2). Average speed of the butterfly = \frac{30}{14}

                                                         = \frac{15}{7}

                                                         = 2\frac{1}{7} meter per second

3).  Average speed of the race car = \frac{500}{3}

                                                          = 166\frac{2}{3} miles per hour

4).Average speed = \frac{\text{Distance traveled}}{\text{Time taken}}

 Distance traveled = Average speed × Time

                                = 85 (km per hour) × 3.5 (hours)

                                = 297.5 km

You might be interested in
Describe how matter cycles through an ecosystem
valkas [14]
Water is a liquid and it evaporates into the sky as a gas and than it can fall as hail or a pond can freeze over making ice which is a solid
8 0
4 years ago
which of the following values can you find by calculating the slope of a graph of velocity versus time position . displacement .
statuscvo [17]
The correct answer is: acceleration.

In fact, the slope of the graph of velocity versus time corresponds to the ratio between the variation of v and the variation of t:
\frac{\Delta v}{\Delta t}
But this is exactly the definition of acceleration: a= \frac{\Delta v}{\Delta t}, so acceleration is the correct answer.
5 0
3 years ago
(a) What magnitude point charge creates a 10,000 N/C electric field at a distance of 0.250 m? (b) How large is the field at 10.0
Sergio039 [100]
<h2>Answer:</h2>

(a) 6.95 x 10⁻⁸ C

(b) 6.25N/C

<h2>Explanation:</h2>

The electric field (E) on a point charge, Q, is given by;

E = k x Q / r²              ---------------(i)

Where;

k = constant = 8.99 x 10⁹ N m²/C²

r = distance of the charge from a reference point.

Given from the question;

E = 10000N/C

r = 0.250m

Substitute these values into equation(i) as follows;

10000 = 8.99 x 10⁹ x Q / (0.25)²

10000 = 8.99 x 10⁹ x Q / (0.0625)

10000 = 143.84 x 10⁹ x Q

Solve for Q;

Q = 10000/(143.84 x 10⁹)

Q = 0.00695 x 10⁻⁵C

Q = 6.95 x 10⁻⁸ C

The magnitude of the charge is 6.95 x 10⁻⁸ C

(b) To get how large the field (E) will be at r = 10.0m, substitute these values including Q = 6.95 x 10⁻⁸ C into equation (i) as follows;

E = k x Q / r²

E = 8.99 x 10⁹ x 6.95 x 10⁻⁸ / 10²

E = 8.99 x 10⁹ x 6.95 x 10⁻⁸ / 100

E = 6.25N/C

Therefore, at 10.0m, the electric field will be just 6.25N/C

3 0
3 years ago
Mountains forming today due to movement of the plates and mountains forming in the past due to movements of the plates would be
nataly862011 [7]

Answer: d.

Explanation:

3 0
3 years ago
Read 2 more answers
What is the main difference between analog anddigital technology?a. Digital technology reproduces sound more faithfullythan anal
daser333 [38]

Answer:

Answer b)

Explanation:

The correct answer is that analog technology stores information as sound-waves, while digital technology stores it as strings of ones and zeroes. So pick answer b)

3 0
3 years ago
Other questions:
  • An insect 5.25 mm tall is placed 25.0 cm to the left of a thin planoconvex lens. The left surface of this lens is flat, the righ
    14·1 answer
  • A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, take
    7·1 answer
  • Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released qu
    8·1 answer
  • A heat pump is used to maintain a house at 22°C by extracting heat from the outside air on a day when the outside air temperatur
    12·1 answer
  • If the voltage in a circuit is 24 V and the current is 2 A, what is the total power in the circuit?
    9·2 answers
  • How much net force is needed to accelerate a 20kg mass at 2.5 m/s2?
    11·1 answer
  • 5. Infer What might happen to sand in a<br><br> valley if more sand is deposited on top of it?
    9·1 answer
  • What will happen if the atom rearrange?
    15·1 answer
  • Question 3 of 10
    13·1 answer
  • How far would the moon be if its mass was doubled
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!