Q1: a) An airplane has a lift off speed of 120km/h. If the plane needs a 240m of runway to take off, what acceleration is needed? How long in seconds is needed for the take off? b) If the lift off speed of this plane was 170km/h (assuming the same acceleration), can this plane land on the same runway?

Q: .. How long it will take to reach 100 °C.

A: 18.67 seconds

Q: 0.A stream of water flows from a pipe at a height of 10m, what is its final velocity when the water…

A:

Q: How much energy corresponds to 1 lbm?

A:

Q: A hot-air balloon is rising upward with a constant speed of 379 m/s. When the balloon is 5.25 mabove…

A: Given data,  u= 3.79 m/s (positive sign because balloon is moving upward) a=-g=-9.81 m/s²  h=5.25 m

Q: A jet lands on a runway is brought to stop in 500ft. Find acceleration(ft/s^2) and time required to…

A: given data: distance travelled; s = 500 feet final velocity; v = 0; finally stops let initial…

Q: what is its °API? How much will it weigh per gallon?

A:

Q: If a body falls from a building and takes 12 seconds to reach the ground Find the height of the…

A: An object is said to be a free falling object when it travels along with the gravitational…

Q: 2.0 m is _m/s

A: answer- 3.33m/s

Q: Find mobility

A: Solution: The mobility of the given mechanism is calculated through Grubler's criteria: M = 3 (n-1)…

Q: a faucet is running water at the rate of one-half pint every minute. What is this flow rate…

A:

Q: I need to lift a large engine block but at my age, I can only create 160lbs of force. I will build a…

A: Let F1 =160lb L1 =Distance between fulcrum to F1 F2 = 575lb L2=1.5ft As we know that the moment at…

Q: 1. The energy from the motion of large masses of air as wind is a type of renewable energy source.…

A: a) Energy in wind is available in the form of solar energy and is produced by movement of air…

Q: the ground height of an object dropped from a height of 200 meters with a speed of ters/second after…

A: Given data  t = 2 second u = 2m/s we know that  h= u*t + 1/2 g*t2 h = 2*2 + 0.5 *9.8*22    =4+ 19.6…

Q: 3) When being pushed up a ramp, the motion is 35° up (sky-wards) from due West. If gravity pulls on…

A: Given: The weight of an object, W = 48 N The slope of plane = 35 degree The distance moved by…

Q: If the mass density of a fluid is 1800 kg/m3, what is the specific gravity? (UP TO THREE DECIMAL…

A:

Q: dy² Pg , where g is the acceleration due to gravity μ

A:

Q: 20°C) to fo s requires 2 by how m

A:

Q: Given data : m-20 kg V-2 m/s Find kinetic energy

A: Given data : Mass of object=m Velocity of object=V   To find: Kinetic energy

Q: A man walks in the early morning for health and fitness. His usual route is 2 kilometer. If he walks…

A:

Q: Given data: U-2 m/s a-3.3 m/s2 Find final velocity

A: Find the final velocity .

Q: 200 Ib 30

A:

Q: The ambient pressure corresponding to an altitude of 34,615ft and its ambient density corresponding…

A:

Q: Pbm 3) A car initially moving at 45 km/hr has to cover a distance of 7.6km in 8 minutes. With what…

A:

Q: p (2/1) u S In (1/2) da

A: the given function is a special integral which can not be solved by ordinary elementary operations.…

Q: ne of your classmates is tra ackyard and jumped off her rain. The student weighs 12 ne roof's height…

A: The above given question is based upon energy balance of the system at different positions. So, to…

Q: 2. At the beach, atmospheric pressure is 1025 mbar. You dive climb a hill up to 250 m elevation.…

A: Given that , Po=1025 mbar =102500 N/m2=102.5kPaρw=1000kg/m3ρa=1.18kg/m3

Q: If specific volume of an oil is 0.0008 m3 /kg, then its specific gravity is 125.000 1.250 0.008…

A: Specific volume=1/ρ=0.0008m3/kg .. given

Q: A passenger train traveled to the repair yards and back. On the trip there, it traveled 51.3 kph and…

A:

Q: Given data: U-2 m/s a=3.3 m/s2 t-3 Find final velocity

A: Given data Initial velocity is (u) is 2 m/s Acceleration is (a) is 3.3 m/s² Time (t) is 3 s Final…

Q: Water 2 m A B 0.6

A: The vertical force on the curve surface can be determined by calculating the weight of the fluid…

Q: PROBLEM 2. A baseball team won two out of their last four games. In how many different orders could…

A: Given: A baseball team won 2 games out of their last 4 games.

Q: NAVN 20 m P=4 kN 1.5 m

A: Moment is maximum when the force vector is perpendicular to the line of joining between the point of…

Q: A bus at rest starts moving with an acceleration of 0.1 m/s² . What will be its speed after 2…

A: Given, Initial velocity of bus = u = 0 m/s (As bus starts from rest) Acceleration of bus = a = 0.1…

Q: To find the width of a river, a nint

A:

Q: An electrical engineer had a task of providing a system of lighting for the show Calculate the…

A:

Q: A.)If an unknown oil has a specific gravity of 0.787 at 60/60°F, what is its °API? How much will it…

A:

Q: A container filled with water and there is a hole, having a height of 20 cm. If acceleration due to…

A: Given: h = 20 cm g = 9.81 m/s2

Q: If the mass density of a fluid is 1600 kg/m3, what is the specific gravity? (UP TO THREE DECIMAL…

A:

Q: stop 25. An iceberg having a specific gravity of 0.92 is 1.03. If the volume of ice above the water…

A: 25

Q: long does it take a plane, tr

A: Need to find Time

Q: The ice at a certain hockey rink is made by freezing water that is 1.5 inch deep.  How many gallons…

A:

Q: Q1. A person going eastwards with a velocity of 3 km per hour, finds that the wind appears to blow…

A:

Q: image499

A: given:l=40ftb=20fth=14ftwater filled to a depth of h1=11ftρwater=62.4lb/ft3

Q: An object is projected vertically upwards with velocity 50 m/s. Find: The height it reaches ( Take g…

A: Given, Initial vertical upward velocity = V1 = 50 m/s Acceleration on object (Vertically downward…

Q: Oil h 2 m 0.3 m Water B Figure Q2 (a)

A: For solution refer below images.

Q: Given data : Kinetic energy320 Joule Mass=5 kg Determine velocity

A: Given data : Mass of object=m Kinetic energy=K.E   To find : Velocity

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.