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
Lunna [17]
3 years ago
10

In the 2008 Olympics, Jamaican sprinter Usain Bolt shocked the world as he ran the 100-meter dash in 9.69 seconds. Determine Usa

in's average speed (velocity) for the race.
Physics
1 answer:
-Dominant- [34]3 years ago
4 0

Answer:

His average speed was 10.3199 m/s.

Explanation:

You might be interested in
Which of Kepler's laws states that planets sweep areas in equal times?
rodikova [14]
Keplers laws states that planets sweep areas in equal times is second
8 0
3 years ago
In which decade was Sputnik I launched? A. 1930-1939 B. 1950-1959 C. 1960-1969 D. 1980-1989
Olenka [21]
B) 1950-1959
Sputnik I was launched on October 4, 1957
6 0
3 years ago
A rollerblader is blading along the sidewalk. Which forms of measurement would be the best to use to determine the rollerblader'
Greeley [361]
You would use distance an time formula to mathmaticly solve

3 0
3 years ago
An 67-kg jogger is heading due east at a speed of 2.3 m/s. A 70-kg jogger is heading 61 ° north of east at a speed of 1.3 m/s. F
ololo11 [35]

Answer

given,

mass of jogger  = 67 kg

speed in east direction = 2.3 m/s

mass of jogger 2 = 70 Kg

speed  = 1.3 m/s  in  61 ° north of east.

jogger one

P_1 = m_1 v_1 \hat{i}

P_1 = 67 \times 2.3\hat{i}

P_1 = 154.1 \hat{i}

P_2 = m_2 v_2 \hat{i} +m_2 v_2 \hat{j}

P_2 = 70\times v cos \theta \hat{i} +70\times v sin \theta \hat{j}

P_2 = 70\times 1.3 cos 61^0 \hat{i} +70\times 1.3 sin 61^0\hat{j}

P_2 = 44.12\hat{i} +79.59\hat{j}

now

P = P₁ + P₂

P = 198.22 \hat{i} +79.59 \hat{j}

magnitude

P = \sqrt{198.22^2 + 79.59^2}

P =213.60 kg.m/s

\theta = tan^{-1}\dfrac{79.59}{198.22}

\theta = 21.87

the angle is \theta = 21.87 north of east

7 0
3 years ago
A 6V radio with a current of 2A is turned on for 5 minutes. Calculate the energy transferred in joules
iogann1982 [59]

Answer:

R=V/I=6/2=3ohm

time =5minutes =5*60=300seconds

I=2A

Heat =I^2Rt=(2)^2*3*300=4*900=3600J

7 0
2 years ago
Other questions:
  • A ball is thrown straight up from the edge of the roof of a building. A second ball is dropped from the roof 1.15 s later. Ignor
    8·1 answer
  • In an experiment, one of the forces exerted on a proton is F⃗ =−αx2i^, where α=12N/m2. What is the potential-energy function for
    12·1 answer
  • What are the balanced forces for someone in a parachute? A. Gravity and Earth B. Gravity and air resistance C. Gravity and centr
    9·2 answers
  • Which statements about the moon’s phases are true? Check all that apply.
    12·2 answers
  • A car accelerates uniformly from 0 km/hr to 60 km/hr in 4.5 seconds. Which one of the following choices best represents the acce
    15·1 answer
  • Which came the egg or the chiken
    9·1 answer
  • See the attachment included with this note
    12·1 answer
  • What force is acting on a 2 kg apple falling on the Earth (g = 10)?
    14·1 answer
  • Find the rate constantrif the population doubles in 12 days.b.ifp= 200 initially (whent= 0), what is the population whent= 18 da
    13·1 answer
  • the reason the moon does not crash into the earth is that the group of answer choices moon has less mass than the earth. moon ha
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!