Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. A ball is thrown from the top of a roof at an angle of 20o with respect to the vertical. 1 s later a ball is dropped from the top of the roof.
a) If the height of the roof is 20 m, determine the velocity with which the first ball must be thrown in order for both balls to land at exactly the same time.
b) Imagine the velocity of the first ball is now known, and instead it is the height of the building which is unknown. Can you obtain an equation for the height of the building which would result in both balls landing on the floor at the same time.2. You are firing a cannonball from the top of a cliff at a pirate ship which is behind a mountain. The height of the cannon is 100 m, the height of the mountain is 120 m, and the height of the pirate ship is 70 m.
The mountain is horizontally 200 m away from cannon, while the pirate ship is horizontally 270 m away from the cannon.
The speed of the cannonball after it is fired is 65 m s-1. You could hit anywhere from the bottom of the pirate ship to the top in order to sink it. Over what angles could you fire the cannonball to sink the pirate ship?
Consider a resistor series RC circuit with a 6.7 µF, capacitor, a 4.5 × 10^6? resistor and 38 V emf. Find the maximum charge on the capacitor
Only a small part of an iceberg protrudes above the water, whilethe bulk lies below the surface. The density of ice is 917 kg/m^3and that of seawater is 1025 kg/m^3. Find the percentage of theiceberg’s volume that lies below the surface.
A concave shaving mirror has a focal length of 95 cm. find the image position of a cologne bottle placed in front of the mirror at a distance of 165cm. Calculate the magnification of the image. Is the image real or virtual? Is the image inverted o..
A certain electric motor draws a current of 46Awhen connected to 120 V. What is the motor's power consumption
1 the manufacturer of the roto-dyne wheel reports that the mass of the wheels rotating components is 1.41- 0.05 kg.
A 150MW laser pulse is focused with a lens to a diameter of 1.0?m. What is the laser beam's electric field amplitude at the focal point
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.77 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?
A ray of light is travelling in water. It passes from the water into a transparent material at an angle of 37o. Determine the speed of light in the transparent material
A model rocket is constructed with a motor that can provide a total impulse of 29.0 N·s. The mass of the rocket is 0.250 kg. What is the speed that this rocket achieves
A 4.85 mol sample of a diatomic ideal gas (gamma = 1.4) expands slowly and adiabatically from a pressure of 4.05 atm and a volume of 13.5 L to a final volume of 34.5 L.
A home run just clears a fence 105 m from home plate. The fence is 4.00 m higher than the height at which the batter struck the ball, At what speed did the ball leave the bat
The men's world record for the shot put, 23.12 m, was set by Randy Barnes of the United States on May 20; 1990.If the shot was launched from 6 ft above the ground at an initial angle of 42degrees, what was its initial speed.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd