A mortar is like a small cannon that launches shells at steep angles. A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. Angling the mortar at an angle of =53.0∘ (as shown), the crew fires the shell at a muzzle velocity of 183 ft/s. How far down the hill does the shell strike if the hill subtends an angle =31.0∘ from the horizontal? Ignore air friction.

d=

How long will the mortar shell remain in the air?

time:

How fast will the shell be traveling when it hits the ground?

speed=

answer: the correct answer is   air pressure at the top of mount everest is higher than at the bottom of the grand canyon.

hope this : )

explanation:

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

3. dark matter

empty space could also be a simple vacuum