Shooting down planes from the ground during WWII was difficult. A timed explosive is used because...

Shooting down planes from the ground during WWII was difficult. A timed explosive is used because hitting a moving aircraft with a single shot from a cannon is nearly impossible; This explosive allows you to be less accurate. You are responsible for aiming and setting the timed fuses for anti aircraft battery (cannon). You fire a projectile that is aerodynamic enough that you can ignore air resistance. The projectile leaves the barrel at 840m/s. Your target is at an altitude of 3000m and a horizontal distance of 4000m.

1.Find the flight time in algebraic expression.

2. At what angle above horizontal must you aim?

3.What does the delay need to be on the fuse?

Expert Solution

genius_generous answered 1 year ago

point charge +Q at origin and two infinite ground planes at z= +- d. used method...

point charge +Q at origin and two infinite ground planes at z= +- d. used method of images to find a)electric potential in region |z| =< d b)induced surface charge density on the plates

What 10 main muscles are used during shooting a basketball? Also indicate if the muscle is...

What 10 main muscles are used during shooting a basketball? Also indicate if the muscle is flexed, abducted, adducted, extended,etc. while shooting a basketball.

. During droughts, water for irrigation is pumped from the ground. When ground water is pumped...

. During droughts, water for irrigation is pumped from the ground. When ground water is pumped excessively, the water table lowers. In California, lowering water tables have been linked to reduced water quality and sinkholes. A particular well in California’s Inland Empire has been monitored over many years. In 1994, the water level was 250 feet below the land surface. In 2000, the water level was 261 feet below the surface. In 2006, the water level was 268 feet below...

Problem 5. During droughts, water for irrigation is pumped from the ground. When ground water is...

Problem 5. During droughts, water for irrigation is pumped from the ground. When ground water is pumped excessively, the water table lowers. In California, lowering water tables have been linked to reduced water quality and sinkholes. A particular well in California’s Inland Empire has been monitored over many years. In 1994, the water level was 250 feet below the land surface. In 2000, the water level was 261 feet below the surface. In 2006, the water level was 268 feet...

A request has been received from an external customer for recommendations for linear position control sensors to be used in an explosive environment.

A request has been received from an external customer for recommendations for linear position control sensors to be used in an explosive environment. For this reason unsafe electrical contacts must be avoided. The sensors will be installed in locations that are hazardous to access except when the plant is shut down annually for maintenance. The span required is 5 cm. The sensor case must not permit any ingress of dust or of water. State what type of position sensors...

What were 4 new products/technologies/industries that emerged from government funded research during WWII? Although the U.S....

What were 4 new products/technologies/industries that emerged from government funded research during WWII? Although the U.S. led a coalition during WWII fighting against racist dictatorships, what were 2 major examples of how racism persisted within the United States?

1. Muscles used for picking up something from the ground? Which muscles are Agonists for picking...

1. Muscles used for picking up something from the ground? Which muscles are Agonists for picking up something from the ground? Which muscles are antogonists for picking up something from the ground? What Nerves are used for picking up something from the ground? 2. Muscles used for shifting gears in a car? What muscles are Agonists for Shifting gears in a car? What muscles are antogonists for Shifting gears in a car? What Nerves are used for Shifting gears in a...

Yassein is looking to refinance his home because rates have gone down from when he bought...

Yassein is looking to refinance his home because rates have gone down from when he bought his house 10 years ago. He started with a 30-year fixed-rate mortgage of $339,000 at an annual rate of 7.6%. He can now get a 20-year fixed-rate mortgage at an annual rate of 5.6% on the remaining balance of his initial mortgage. (All loans require monthly payments.) In order to re-finance, Yassein will need to pay closing costs of $4,200. These costs are out...

During the 2016 Summer Olympic the Russian track and field team was banned from participating because...

During the 2016 Summer Olympic the Russian track and field team was banned from participating because of a drug doping scandal. Over 1000 Russian athletes were banned from competition because of this suspension. What role do ethics play in sports? Do you think it is important to hold individuals accountable when they are found in to be in violation of the rules? Did the punishment fit the crime for the Russians?

Jill and Jack both have two pails that can be used to carry water down from...

Jill and Jack both have two pails that can be used to carry water down from a hill. Each makes only one trip down the hill, and each pail of water can be sold for $6. Carrying the pails of water down requires considerable effort. Both Jill and Jack would be willing to pay $5 each to avoid carrying one pail down the hill, and an additional $5 to avoid carrying a second pail down the hill. a. If Jack...

Question