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
VARVARA [1.3K]
3 years ago
11

1. A sprinter races in the 100 meter dash. It takes him 10 second to reach the finish line

Physics
1 answer:
poizon [28]3 years ago
6 0

Answer:

v = 10 m/s

Explanation:

Given that,

Distance covered by a sprinter, d = 100 m

Time taken by him to reach the finish line, t = 10 s

We need to find his average velocity. We know that velocity is equal to the distance covered divided by time taken. So,

v = d/t

v=\dfrac{100\ m}{10\ s}\\\\v=10\ m/s

Hence, his average velocity is 10 m/s.

You might be interested in
The capacitance of a fully-charged capacitor is 11 F. Determine the capacitor's capacitance when it is half charged.
Tcecarenko [31]

Answer:

The capacitance is 11 F for half and fully charged capacitor.

Explanation:

Capacitance of capacitor is given by the expression

             C=\frac{\epsilon A}{d}

Where ε is the  vacuum permittivity, A is the area of plates and d is the separation between plates.

So capacitance does not depend upon charge and potential. So capacitance fully and half charged capacitors are same.

Here the capacitance is 11 F for half and fully charged capacitor.

4 0
3 years ago
As a passenger balloon rises, its gas bag tends to A. Become smaller B. Leak C. Distort D. Expand E. Remain unchanged
andrew11 [14]

Answer:

I think it expands

Explanation:

3 0
3 years ago
Read 2 more answers
I really need help this was due Friday! I will mark brainiest!
Svetllana [295]

Answer:

Average speed = (total distance covered) / (time to cover the distance)

You only need the first and last points from the table.

First point: Position=0, Time=0

Last point: Position= 16.34, Time = 2.34 hours

Total distance covered = 16.34 (miles ?  km ?)

Time to cover the distance = 2.34 hours

Average speed = (16.34 miles) / (2.34 hours)

Average speed = 6.983 mile/hour

Explanation:

6 0
4 years ago
A circuit has resistors R 1 = 468 Ω and R 2 = 125 Ω R1=468 Ω and R2=125 Ω , and two batteries V 1 = 12.0 V and V 2 = 3.00 V V1=1
Greeley [361]

Answer:

0.0192A

Explanation:

Since, the reading of the galvanometer is 0 A, the voltage across the resistance R will be:

Step 1

VR = V2

VR = 3.00v

Step 2

Calculating the current through the resistance R as below,

IR = V1 - V2 /R1

IR = 12 - 3 /468

IR =0.0192A

7 0
3 years ago
What can be used to plot the magnetic field around a bar magnet?
zlopas [31]

Answer:

A bar magnet creates a magnetic field around it. The field cannot be seen, but its effects can be observed. This is how the magnetic field around a magnet is detected. Iron fillings can be used to study the presence of magnetic field and a compass can be used to plot the field lines.

Explanation:

4 0
3 years ago
Other questions:
  • A bird flies north with a velocity of 10.00 meters/second relative to the air. It encounters a crosswind blowing at a velocity o
    15·1 answer
  • A dam generating electricity from water flowing downhill is an example of how systems
    9·2 answers
  • 4. A ball of clay, of mass m, traveling at speed vo, collides and sticks to a stationary stick. The ball approaches the stick in
    13·2 answers
  • In the graph, which region shows nonuniform positive acceleration?
    13·2 answers
  • Two students are simultaneously pushing a glider on a frictionless air track, each with a constant horizontal force. In the exam
    8·1 answer
  • Nick lives in area that has a south-facing slope. The temperature in his area is always high. Which of these abiotic factors is
    9·2 answers
  • Need this ASAP!! Please help loves <33
    10·1 answer
  • N
    11·1 answer
  • Use the diagram of the pulley system to complete the statement.In this pulley system, the pulleys will _____ the mechanical forc
    9·1 answer
  • FO
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!