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
levacccp [35]
3 years ago
13

Douun Dinosaur takes 32 s to walk along a straight road to a store 79 m away. What is Douun's speed in kilometers per hour?

Physics
1 answer:
Oksana_A [137]3 years ago
5 0

Answer:

8.8875km/h

Explanation:

t=32s=2/225h

d=79m=0.079km

s=d/t

s=0.079÷2/225

You might be interested in
Nvm I dont need help anymore
pychu [463]

Answer:

no problem it's okay if you need any problem then ask

5 0
2 years ago
A 19 nC charge is moved in a uniform electric field. The electric field does 5.3 μJ of work as the charge moves from point A to
Marizza181 [45]

Answer:

The potential difference between points A and B is 278.95 volts.

The potential difference between points B and C is -642.10 volts.

The potential difference between points A and C is -363.15 volts.

Explanation:

Given :

Charge of the particle, q = 19 nC = 19 x 10⁻⁹ C

Work is done to move a charge from point A to B, W₁ = 5.3 μJ

Work done to move a charge from point B to C, W₂ = -12.2 μJ

Let V₁ be the potential difference between point A and B, V₂ be the potential difference between point B and C and V₃ be the potential difference between point A and C.

The relation between work done and potential difference is:

W = qV  

V = W/q    ....(1)

Using equation (1), the potential difference between points A and B is:

V_{1}=\frac{W_{1} }{q}

Substitute the suitable values in the above equation.

V_{1} =\frac{5.3\times10^{-6} }{19\times10^{-9} }

V₁ = 278.95 V

Using equation (1), the potential difference between points B and C is:

V_{2}=\frac{W_{2} }{q}

Substitute the suitable values in the above equation.

V_{2} =\frac{-12.2\times10^{-6} }{19\times10^{-9} }

V₂ = -642.10 V

The potential difference between points A and C is:

V₃ = V₁ + V₂

V₃ = 278.95 - 642.10

V₃ = -363.15 V

8 0
3 years ago
How many different types of atoms are present in one molecule of aluminum hydroxide, Al(OH)3?
tatyana61 [14]
There are approximately 3 different types of atoms that are present in one molecule of aluminum hydroxide, AI(OH)3.
8 0
3 years ago
Read 2 more answers
A skydiver reaches terminal velocity. Then he opens his parachute.
schepotkina [342]

Answer:

it is 0.9999.10896

Explanation:

4 0
2 years ago
Read 2 more answers
A weightlifter raises a 50kg weight to a height of 2m in 2 minutes. What was the power spent by the weightlifter?
belka [17]

Answer:

117.72kW

Explanation:

Given data

Mass m= 50kg

height x = 2m

time taken = 2 minutes= 129 seconds

let us find the work done

WD= force * distance

WD= mgx

WD= 50*9.81*2

WD= 981 Joules

Let us find the power

Power= work * time

Power= 981*120

Power= 117720

Power= 117.72 kW

Hence the power spent is 117.72kW

8 0
3 years ago
Other questions:
  • A surfer is actually traveling on which part of a surface wave
    5·2 answers
  • Which of the following is NOT a benefit of cool down activities?
    14·1 answer
  • Which is true regarding AC current? The electrons move back and forth. The +/- polarity is constant. It is common in portable de
    8·2 answers
  • Electric current passing through a human body can be dangerous, even fatal, depending on the amount of current, the duration of
    9·1 answer
  • A boat is moving along the water. The forward thrust from the engines is 35,000 N. Water resistance is 20,000 N and air resistan
    10·1 answer
  • Why were you able to see the effects of the magnetic fields using iron filings
    10·2 answers
  • a motorcycle is trying to leap across the canyon by driving horizontally off a cliff 38 m/s. Ignoring air resistance, find the s
    11·1 answer
  • room-darkening window shades are used to keep sunlight out of a theater. what type of material should the shades be made of? Exp
    6·2 answers
  • Im B O R E D someone please entertain me :(
    7·1 answer
  • The speed limit on some interstate highways is roughly 90 km/h. (a) What is this in meters per second
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!