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Nahimana Chancelin

Nahimana C.

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Viewed Questions

A projectile is fired from ground level at an angle of $60^{\circ}$ above the horizontal with an initial speed of $30 \mathrm{~m} / \mathrm{s}$. What are the magnitude and direction (relative to horizontal) of its instantaneous velocity at (a) the moment it is fired, (b) the moment it reaches its maximum height, and (c) the moment before it hits the ground?

A projectile is fired from ground level at an angle of $60^{\circ}$ above the horizontal with an initial speed of $30 \mathrm{~m} / \mathrm{s}$. What are the magnitude and direction (relative to horizontal) of its instantaneous velocity at (a) the moment it is fired, (b) the moment it reaches its maximum height, and (c) the moment before it hits the ground?

College Physics

A projectile is fired with an initial speed of 200 m/s and angle of elevation $ 60^\circ $. Find (a) the range of the projectile, (b) the maximum height reached, and (c) the speed at impact.

A projectile is fired with an initial speed of 200 m/s and angle of elevation $ 60^\circ $. Find (a) the range of the projectile, (b) the maximum height reached, and (c) the speed at impact.

Calculus: Early Transcendentals

Vector Functions

Motion in Space: Velocity and…
(I) How much work is done by the gravitational force when a 265 -kg pile driver falls 2.80 $\mathrm{m} ?$

(I) How much work is done by the gravitational force when a 265 -kg pile driver falls 2.80 $\mathrm{m} ?$

Physics Principles with Applications

Questions asked

INSTANT ANSWER

4.a) A body describes a circumference of radius 2m and the motion is uniform. It does 2 rotations in 6s. If π 2 = 9.86, find the centripetal acceleration. b) The wheel of an engine of 4m diameter does 90 rotations per minute. Calculate: i) the linear speed. ii) the angular speed. iii) the centripetal acceleration. c) Differentiate tangential acceleration from centripetal acceleration

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Conservation of momentum - Internal Motion Problem A man with a mass of 70 kg is standing on the front end of a flat railroad car, which has a mass of 1,000 kg and a length of 10 m . The railroad car is initially at rest relative to the track. The man then walks from one end of the car t to the other at a speed of 1.0 m/s relative to the track. Assume there is no friction in the wheels of the railroad car. (a) What happens to the cart while the man is walking? (b) How fast does the cart move? (c) What happens when the man stops at the rear of the car?

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INSTANT ANSWER

Conservation of momentum - Internal Motion Problem A man with a mass of 70 kg is standing on the front end of a flat railroad car, which has a mass of 1,000 kg and a length of 10 m . The railroad car is initially at rest relative to the track. The man then walks from one end of the car t to the other at a speed of 1.0 m/s relative to the track. Assume there is no friction in the wheels of the railroad car. (a) What happens to the cart while the man is walking? (b) How fast does the cart move? (c) What happens when the man stops at the rear of the car?

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INSTANT ANSWER

Physics 3310-xx Example Problem: Conservation of momentum - Internal Motion Problem A man with a mass of \( 70 \mathrm{~kg} \) is standing on the front end of a flat railroad car, which has a mass of \( 1,000 \mathrm{~kg} \) and a length of \( 10 \mathrm{~m} \). The railroad car is initially at rest relative to the track. The man then walks from one end of the car \( \mathrm{t} \) to the other at a speed of \( 1.0 \mathrm{~m} / \mathrm{s} \) relative to the track. Assume there is no friction in the wheels of the railroad car. (a) What happens to the cart while the man is walking? (b) How fast does the cart move? (c) What happens when the man stops at the rear of the car?

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INSTANT ANSWER

A battery is composed by 120 cells in series .Each element has electromotive force of 2V and internal resistance of 0.001 Ω. The combination is connected to an external resistance of 4.8 Ω. Calculate: (a) The intensity of the current in the circuit ? (b) the voltage at the terminals of the battery? (c) the energy dissipated by joule effect when the current flows in the circuit in one hour?

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a batttery is composed by 120 cells in series. Each element has an emf of 2V and internal resistance of 0.001 Ohms.the combination is connected to an external resistance of 4.8 Ohms. calculate: a)the intensity of the current in the circuit b)The voltage at the terminals of the battery c)the energy dissipated by joule effect when the current flows in the circuit in one hour

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when a person jumps from a tree to the ground what happens to the momentum of the person upon stricking the ground

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