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Classical Mechanics
Two satellites of same mass m are revolving around earth(M) in same orbit of radius r. Rotational directions of the 2 satellites are opposite, therefore they can collide. Total mechanical energy of the system (both satellites and earth) is (m<<M) __?
1)-GMm/r
2)-2GMm/r
3)-GMm/2r
1)-GMm/r
2)-2GMm/r
3)-GMm/2r
Classical Mechanics
A 500 g can of food is given a push on a frictionless level surface and is observed to accelerate at a rate of 1.5 m/s^2. How much is the force in Newton’s, was applied to accelerate the can of food?
Classical Mechanics
hii,
i have been trying to solve this question in forever so help would be much appreciated
A stationary uranium nucleus disintegrates emitting an alpha particle of mass 6.65 × 10^-27 kg and another nucleus X of mass 3.89 × 10 ^-25 kg (they're in opposite direction to one another)
calculate the ratio velocity alpha particle / velocity nucleus X
i have been trying to solve this question in forever so help would be much appreciated
A stationary uranium nucleus disintegrates emitting an alpha particle of mass 6.65 × 10^-27 kg and another nucleus X of mass 3.89 × 10 ^-25 kg (they're in opposite direction to one another)
calculate the ratio velocity alpha particle / velocity nucleus X
Classical Mechanics
Hi i want to know why we use "block" to show an object in newton lasw for example we can say if we dont use a block an object may rotate .. i need 5 reason
Thank
Thank
Classical Mechanics
Multistage rocket in free space (no air, no gravity). Starting at rest with an initial total mass m0, and an assumed constant exhaust speed u with respect to the ship,
(a) what is the final velocity v of the ship with respect to the ground in a two-stage process where after stage 1 mass m1 of fuel has been burnt and then mass mdrop is jettisoned to prepare for stage 2 in which a total amount of fuel m2 is burnt? [In part (a) derive a formula for v in terms of u and arbitrary masses]
(b) What is the percentage increase or decrease of the final velocity v of the ship in this
two-stage process compared to a single-stage rocket with the same exhaust speed u and initial
total mass m0, but where just m1 + m2 of fuel is burnt? [In part (b) derive a number for v’s
percentage change, and say whether it increases or decreases; like the Space Shuttle, use
mdrop = 2.5 ⨉ 105 kg, m2 = 2 mdrop , m1 = 2 m2, and m0 = 2 m1 = 2 ⨉ 106 kg]
(a) what is the final velocity v of the ship with respect to the ground in a two-stage process where after stage 1 mass m1 of fuel has been burnt and then mass mdrop is jettisoned to prepare for stage 2 in which a total amount of fuel m2 is burnt? [In part (a) derive a formula for v in terms of u and arbitrary masses]
(b) What is the percentage increase or decrease of the final velocity v of the ship in this
two-stage process compared to a single-stage rocket with the same exhaust speed u and initial
total mass m0, but where just m1 + m2 of fuel is burnt? [In part (b) derive a number for v’s
percentage change, and say whether it increases or decreases; like the Space Shuttle, use
mdrop = 2.5 ⨉ 105 kg, m2 = 2 mdrop , m1 = 2 m2, and m0 = 2 m1 = 2 ⨉ 106 kg]
Classical Mechanics
I need to know how to show the change in the range of a projectile when accounting for the rotation of the earth, I have
D = R2 - R,
R2 = (1/3)*w(t^3)gcos(k) - w*(t^2)*V*sin(a)*cos(k) + Vcos(a)*t
R = 2(V^2)(sin(a)^2)/g
t= (2*V*sin(a))/g
I know what D is but not how to get there,
D = ((2(R^3)/g)^(1/2))*wcos(k)[(cot(a)^(1/2)) - 1/3*f(a)]
f(a) is a function of a, it is known to be tan(a)^3/2 but the question is initially phrased this way.
D = R2 - R,
R2 = (1/3)*w(t^3)gcos(k) - w*(t^2)*V*sin(a)*cos(k) + Vcos(a)*t
R = 2(V^2)(sin(a)^2)/g
t= (2*V*sin(a))/g
I know what D is but not how to get there,
D = ((2(R^3)/g)^(1/2))*wcos(k)[(cot(a)^(1/2)) - 1/3*f(a)]
f(a) is a function of a, it is known to be tan(a)^3/2 but the question is initially phrased this way.
Classical Mechanics
What is the angular acceleration of an object that travels from 0.52 rads to 1.05 rads within 15 seconds?
Classical Mechanics
What is the relation between moment of inertia I1 , I2 , I3 for spherical top
Classical Mechanics
a truck with a mass of 2200 kg travels at a constant velocity of 18 m/s, with a Fp=1400. What is the mu?
Classical Mechanics
To a person going north with a velocity of 12 km/hr,the rain appears to fall vertically downwards with a velocity of 5 km/hr. Find the actual speed and the direction of the rain.
