Physics, 07.03.2020 03:20 HolaConcheeDaBrycee

In a volcanic eruption, a 2400-kgkg boulder is thrown vertically upward into the air. At its highest point, it suddenly explodes (due to trapped gases) into two fragments, one being three times the mass of the other. The lighter fragment starts out with only horizontal velocity and lands 293 mm directly north of the point of the explosion. Where will the fragment land? Neglect any air resistance.

Answers: 3

Show answers

Answers

Answer from: nathangirnet

Rh = 97.67 m

Explanation:

given data

mass = 2400 kg

lands = 293 mm

solution

as here boulder is thrown upward so at some point will be hightest so at that velocity will be zero

so we apply here conservation of momentum

0 = m1 × v1 - mh × vh ...............1

m1 × v1 = mh × vh

$\frac{1}{4}$ × 2400 × v1 = $\frac{3}{4}$ × 2400 × vh

v1 = 3 vh

and

R = speed × time

time = $\frac{293}{v1}$

and

Rh = vh × time

Rh = $\frac{1}{3}$ v1 × $\frac{293}{v1}$

Rh = 97.67 m

Answer from: Quest

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Other questions on the subject: Physics

Physics, 21.06.2019 21:30, ddoherty88

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

Answers: 3

continue

Physics, 22.06.2019 09:30, ccory0626

Why are graphs useful when interpreting data

Answers: 2

continue

Physics, 22.06.2019 12:00, fryday2516

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?

Answers: 1

continue

Physics, 22.06.2019 14:50, MoogleCaliS

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.

Answers: 2

continue

You know the right answer?

In a volcanic eruption, a 2400-kgkg boulder is thrown vertically upward into the air. At its highest...