subject
Physics, 04.09.2020 19:01 neariah24

Please Help I am so lost 16 On July 4, 2017 North Korea tested an Inter-Continental Ballistic Missile (ICBM) that reached a height of 2802
about 40 minutes. When the missile travels away from the earth, the gravitational force on the missile and
hence the acceleration due to gravity will decrease with height. Assume:
(i) The acceleration due to gravity at a height 'h' above the earth is given by
G= (R)^2/(R+h)^2 where R, is
the radius of the earth and g (-9.8ms-2) is the acceleration due to gravity at the earth's surface.
(ii) The acceleration of the missile to be the average between the minimum and maximum accelerations it
feels.
(iii) The missile had a single rocket boost.
Using the above information, find
A)
The average acceleration (deceleration) of the ICBM.
B)
The initial speed (V.) and the angle of the missile at launch

Hint: Even though there are numbers in the problem, work it out using symbols. Use 'X' for the
horizontal distance traveled, 'T' for the time of flight and 'a' for the acceleration found in (a).You should
be able to find an expression for (v.) terms of X, T, and a. Now substitute numbers.

(c) The maximum distance it could travel if projected at a different angle? What is the new time of flight?
Hint: If you have worked out part (b) using symbols, this part should be quite straightforward

ansver
Answers: 1

Other questions on the subject: Physics

image
Physics, 22.06.2019 08:00, jjxt126
What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest
Answers: 1
image
Physics, 22.06.2019 08:40, tasniahussain21
The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.
Answers: 2
image
Physics, 22.06.2019 11:30, azduce
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?
Answers: 3
image
Physics, 22.06.2019 14:20, jeny89
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
Answers: 3
You know the right answer?
Please Help I am so lost 16 On July 4, 2017 North Korea tested an Inter-Continental Ballistic Missi...

Questions in other subjects:

Konu
History, 08.10.2019 07:30