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Alex Ar [27]
3 years ago
14

fuel was consumed at a certain rate of 0.05Kg\s in a rocket engine and ejected as a gas with a speed of4000m\s . Determine the t

hrust on the rocket​
Physics
1 answer:
ivann1987 [24]3 years ago
5 0

Answer:

Thrust = 200 N

Explanation:

The engine thrust can be found by using the following formula:

Thrust = mv

where,

m = mass flow rate of the fuel = 0.05 kg/s

v = velocity of ejected gases = 4000 m/s

Therefore, using the given values in the equation, we get:

Thrust = (0.05\ kg/s)(4000\ m/s)

<u>Thrust = 200 N</u>

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archer shoots his arrow towards a target at a distance of 90 m, and hits ‘bullseye’ . Calculate the acceleration and time taken
mario62 [17]

Answer:

a =45 m/s2

t = 2 seconds

Explanation:

Hi, to answer this question we have to apply the next formula:

v^2 = u^2 +2 a d

Where:

v = final velocity = 90 m/s

u = initial velocity = 0 m/s (shots from rest)

a = acceleration (m/s2)

d = distance = 90m

90^2 = 0^2 + 2a(90)

Solving for a:

8,100= 180 a

8,100/180 = a

a = 45 m/s^2

For time:

v = u + at

90 = 0 + 45t

90/45=t

t =2 seconds

6 0
3 years ago
a runner goes from 5 m/s to a stop in 10 seconds. Calculate his acceleration. Show your work and include units. ​
AnnyKZ [126]
Hope this helps you out

5 0
3 years ago
Which is the last step in conduction a Urlacher search
aleksandr82 [10.1K]
Try the same search on a different data base.
5 0
3 years ago
A large reduction in the current account deficit will place ____ pressure on the home currency value, other things being equal.
shepuryov [24]

Answer:

Upward.

Explanation:

A large reduction in the current account deficit will place Upward pressure on the home currency value, other things being equal.

When their currency's value decreases, this means the valuation of foreign assets are rising. This further decreases the deficit in the current account. Additionally, a reduced currency value tends to increase export markets when prices become more cutthroat. Export demand falls as prices rise with inflation setting in.

6 0
4 years ago
Reading glasses of what power are needed for a person whose near point is 125 cm , so that he can read a computer screen at 54 c
Burka [1]

Answer:

1.11 dioptre

Explanation:

d_{i} = Distance of the image = - (125 - 2) = - 123 cm

d_{o} = Distance of the object = 54 - 2 = 52 cm

f = Focal length of the lens

Using the equation

\frac{1}{d_{o}} + \frac{1}{d_{i}} = \frac{1}{f}

\frac{1}{52} + \frac{- 1}{123} = \frac{1}{f}

f = 90.1 cm

Power of the lens is given as

P = \frac{100}{f}

P = \frac{100}{90.1}

P = 1.11 Dioptre

3 0
3 years ago
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