a pelican flies at a speed of 52 km/h for 0.25 hours . how many miles does the pelican travel ? the conversion factor is 1.6 km/h = 1.0 mph
Answers
First I divided 52 by 1.6, i got 32.5, then found out how many minutes in 0.25 hour, which is 15 minute. Finally I times 32.5 and 15 together to get my finally answer.
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Luminosity is the total energy that star produce in one second, depending on both the radius of the star and on its surface temperature. Thus, all the star's properties such as its temperature, size, brightness and life span is determined by its luminosity.
Answers
Answer:
RADIATION
Explanation:
JUST TOOK IT ON APEX
Answer: Translation
Explanation:
Apex
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890 m/s 850 m/s 790 m/s 895 m/s 870 m/s
Car A
Car B
Car C
Car D
Car E
Answers
Answer:
Car C
Explanation:
It is given that,
Five race cars speed toward the finish line at the Jasper County Speedway. The mass of each car has same mass. The speed of all cars are given as :
Car A = 890 m/s
car B = 850 m/s
Car C = 790 m/s
Car D = 895 m/s
Car E = 870 m/s
The distance is constant because the finish line is same for all cars. The speed of an object is given by the total distance covered divided by total time taken i.e.
Where
d = distance
t = time required by the car to come to a full stop
So, time taken is inversely proportional to the speed of the car. The car having less speed will take maximum time to come to stop. Hence, car C will require longest time to come to a full stop.
Answer:
Car D
Explanation:
The mass of the car is given the same. The initial velocities are also given. eventually all the cars come to a stop. The finish line would be crossed first by the fastest car. But If all the cars decelerate at the same rate then, we can find out the time taken to come to a full stop by first equation of motion,
final velocity, v = 0
if a is same for all cars.
Car D has maximum speed ( 895 m/s). So, Car D will take the maximum time to come to a stop.
Answers
Answer:
Explanation:
* For cylinders, it is unique. Since you have two circular bases, you take half the mass in the formula:
I am joyous to assist you anytime.
Answer:
778 J
Explanation:
Rotational energy is:
RE = ½ Iω²
For a solid cylinder I = ½ mr².
Rolling without slipping means ω = v/r.
RE = ½ (½ mr²) (v/r)²
RE = ¼ mv²
Plug in values:
RE = ¼ (34.5 kg) (9.5 m/s)²
RE ≈ 778 J
Round as needed.
2X + 2Z = 10Y
Answers
Z equals 10, when substitute X = 5 and Y = 3 in 2X + 2Z = 10Y.
What are Arithmetic operations?
Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
/ Division operation: Divides left-hand operand by right-hand operand
For example 4/2 = 2
Given that equation as:
⇒ 2X + 2Z = 10Y
If X = 5 and Y = 3,
Substitute the values of X = 5 and Y = 3,
⇒ 2(5) + 2 (Z) = 10(3)
Apply the multiplication operation
⇒ 10 + 2Z= 30
⇒ 2Z = 20
⇒ Z = 20/2
Apply the division operation
⇒ Z = 10
Hence, Z equals 10, when Substitute X = 5 and Y = 3 in 2X + 2Z = 10Y
Learn more about Arithmetic operations here:
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10 + 2z= 30
2z=20
z=10
Answers
Answer:
the correct answer is (b) low specific heat