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
d1i1m1o1n [39]
3 years ago
13

Consider a small car of mass 1200 kg and a large sport utility vehicle (SUV) of mass 4000 kg. The SUV is traveling at the speed

limit (v ???? 35 m/s). The driver of the small car travels so as to have the same kinetic energy as the SUV. Find the speed of the small car.
Physics
1 answer:
Karolina [17]3 years ago
6 0

Answer:

63.9 m/s

Explanation:

Parameters given:

Mass of small car, m = 1200 kg

Mass of SUV, M = 4000 kg

Speed of SUV, V = 35 m/s

Their kinetic energy of the small car is equal to the kinetic energy of the SUV, hence:

0.5 * m * v² = 0.5 * M * V²

=> 0.5 * 1200 * v² = 0.5 * 4000 * 35²

600 * v² = 2450000

v² = 2450000/600

v² = 4083.3

=> v = 63.9 m/s

The speed of the small car is 63.9 m/s.

You might be interested in
Plz answer this asap first answer gets brainliest and 100 points
Ratling [72]

The answer is C. From the yolk to the white.

4 0
2 years ago
Read 2 more answers
A square coil of wire with side 8.0 cm and 50 turns sits in a uniform magnetic field that is perpendicular to the plane of the c
bezimeni [28]

Answer:

Explanation:

area of the coil  A = .08 x .08 = 64 x 10⁻⁴ m ²

flux through the coil Φ = area of coil x no of turns x magnetic field

= 64 x 10⁻⁴ x 50 x B where B is magnetic field

emf induced = dΦ / dt = ( 64 x 10⁻⁴ x 50 x B - 0 ) / .2

= 1.6 B

current induced = emf induced / resistance

12 x 10⁻³ = 1.6 B / 15

B = 112.5 x 10⁻³ T .

8 0
3 years ago
The period of a simple pendulum, defined as the time necessary for one complete oscillation, is measured in time units and is gi
Oksana_A [137]

The task is to show that the right side of the equation has units of [Time], just like the left side has.

The right side of the equation is . . . 2 π √(L/G) .

We can completely ignore the  2π since it has no units at all, so it has no effect on the units of the right side of the equation.  Now the task is simply to find the units of  √(L/G) .

L . . . meters

G . . . meters/sec²

(L/G) = (meters) / (meters/sec²)

(L/G) = (meters) · (sec²/meters)

(L/G) = (meters · sec²) / (meters)

(L/G) = sec²

So  √(L/G) = seconds = [Time]

THAT's what we were hoping to prove, and we did it !

7 0
3 years ago
If everything with mass is attracted to every other thing with mass, why doesn’t all the matter in the universe pull together in
kupik [55]

Answer:

i need more info

Explanation:

6 0
3 years ago
Read 2 more answers
How many million kilometers is one astronomical unit.
Andrews [41]

Answer:

150 million kilometres

Explanation:

The astronomical unit (symbol: au, or AU or AU) is a unit of length, roughly the distance from Earth to the Sun and equal to 150 million kilometres (93 million miles) or 8.3 light minutes.

6 0
2 years ago
Other questions:
  • Which of the following is a chemical equation that accurately represents what happens when sulfur and oxygen react to form sulfu
    7·1 answer
  • Jamison spins around 5 times without moving any direction. What was the total displacement?
    15·1 answer
  • How does Pascal's principle describe pressure throughout a fluid?
    10·1 answer
  • What will change the velocity of a periodic wave?
    15·2 answers
  • A nonuniform beam 4.50 m long and weighing 1.40 kN makes an angle of 25.0° below the horizontal. It is held in position by a fri
    6·1 answer
  • you're riding on a train that's moving at 5 km/h and you roll a ball down the aisle at 2 km/h in the same direction as the train
    14·1 answer
  • Which change occurs when an atom undergoes decay?
    13·1 answer
  • Solar____is the energy output from the sun
    14·2 answers
  • Which of the following types of models could be used to represent a cell?
    12·2 answers
  • How many examples are there for oscillatory motion (i) Motion of football players (ii) String of a guitar (iii) Motion of a chil
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!