Q1 a 580-kg projectile is fired at an angle of 300deg above

Assignment Help Physics

Reference no: EM13350863

Q1. A 58.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.26 102 m/s from the top of a cliff 150 m above level ground, where ground is taken to be y = 0.

(a) What is an initial total mechanical energy of the projectile?

(b) Assume the projectile is travelling 89.3 m/s at its maximum height of y = 315 m. How much work has been done on the projectile by air friction?

(c) What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up?

Q2. A ball is thrown directly upward with an initial velocity of 10 m/s. If the ball starts at an initial height of 2.1 m, how long is the ball in the air?
Overlook air drag.

Q3. Determine the magnitude of the magnetic field at a point 10 cm from a long, thin and straight wire bearing a current of 500 mA.

How to solve this because it has a point of 10 cm instead of radius?

Reference no: EM13350863

Questions Cloud

Q1 an aging coyote cannot run fast enough to catch a : q1. an aging coyote cannot run fast enough to catch a roadrunner. he purchases on ebay a set of jet-powered roller

Q1 a certain elevator cab has a total run of 171 m and a : q1. a certain elevator cab has a total run of 171 m and a greatest speed is 4.75 msec and it accelerates from rest and

Q1 suppose that in franck-hertz experiment electron of : q1. suppose that in franck-hertz experiment electron of energy 12.5 ev is used to excite hydrogen atoms. what is the

Q1 a evaluate the temperatures of a blue star and a blue : q1. a evaluate the temperatures of a blue star and a blue jacket coat by using order of magnitude estimates for

Q1 a 580-kg projectile is fired at an angle of 300deg above : q1. a 58.0-kg projectile is fired at an angle of 30.0deg above the horizontal with an initial speed of 1.26 102 ms from

Q1 a boat crosses a river of width 115 m in which the : q1. a boat crosses a river of width 115 m in which the current has a uniform speed of 1.39 ms. the pilot maintains a

Q 1- how much pressure would be necessary to compress a : q 1- how much pressure would be necessary to compress a quantity of mercury by 0.015 percent?2- two metal plates are

Q1 what current is required in the windings of a long : q1. what current is required in the windings of a long solenoid that has 1710 turns uniformly dispersed over a length

Q1 when a surface is irradiated with light of wavelength : q1. when a surface is irradiated with light of wavelength 4950 a a photo current appears that vanishes if a retarding

User Account

All Pages