1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BaLLatris [955]
3 years ago
5

A stomp rocket is a toy consisting of a hose connected to a blast pad (i.e., an air bladder) at one end and to a short pipe moun

ted on a tripod at the other end. A rocket with a hollow body is mounted onto the pipe and is propelled into the air by stomping on the blast pad. Some manufacturers claim that one can shoot a rocket over 200 ft in the air. Neglecting air resistance, determine the rocket’s minimum initial speed such that it reaches a maximum fligh height of 200 ft.

Engineering
1 answer:
lesya [120]3 years ago
8 0

Answer:

Explanation:

The detailed steps is as shown in the attachment.

You might be interested in
Dunno what to ask, okbye
Kobotan [32]

Answer:

lol

Explanation:

4 0
3 years ago
Please Help !!
Alla [95]

Answer:

how are we supposed to help?

4 0
3 years ago
A steam turbine receives 8 kg/s of steam at 9 MPa, 650 C and 60 m/s (pressure, temperature and velocity). It discharges liquid-v
adelina 88 [10]

Answer:

The power produced by the turbine is 23309.1856 kW

Explanation:

h₁ = 3755.39

s₁ = 7.0955

s₂ = sf + x₂sfg  =

Interpolating fot the pressure at 3.25 bar gives;

570.935 +(3.25 - 3.2)/(3.3 - 3.2)*(575.500 - 570.935) = 573.2175

2156.92 +(3.25 - 3.2)/(3.3 - 3.2)*(2153.77- 2156.92) = 2155.345

h₂ = 573.2175 + 0.94*2155.345 = 2599.2418 kJ/kg

Power output of the turbine formula =

Q - \dot{W } = \dot{m}\left [ \left (h_{2}-h_{1}  \right )+\dfrac{v_{2}^{2}- v_{1}^{2}}{2} + g(z_{2}-z_{1})\right ]

Which gives;

560 - \dot{W } = 8\left [ \left (2599.2418-3755.39  \right )+\dfrac{15^{2}- 60^{2}}{2} \right ]

= -8*((2599.2418 - 3755.39)+(15^2 - 60^2)/2 ) = -22749.1856

- \dot{W } = -22749.1856 - 560 = -23309.1856 kJ

\dot{W } = 23309.1856 kJ

Power produced by the turbine = Work done per second = 23309.1856 kW.

5 0
3 years ago
What is a shearing stress? Is there a force resulting from two solids in contact to which is it similar?
Luba_88 [7]

Answer:

Shearing stresses are the stresses generated in any material when a force acts in such a way that it tends to tear off the material.

Generally the above definition is valid at an armature level, in more technical terms shearing stresses are the component of the stresses that act parallel to any plane in a material that is under stress. Shearing stresses are present in a body even if normal forces act on it along the centroidal axis.

Mathematically in a plane AB the shearing stresses are given by

\tau =\frac{Fcos(\theta )}{A}

Yes the shearing force which generates the shearing stresses is similar to frictional force that acts between the 2 surfaces in contact with each other.  

7 0
3 years ago
Why is concrete on its own not a good material to use
Inga [223]

Answer:

It has poor tensile strength despite having high compressive strength

Explanation:

Concrete exhibits high compressive strength when used. However, it has very low compressive strength. This is the reason why concrete is normally combined with steel to make a composite building material called reinforced concrete. The steel reinforces concrete hence increasing the tensile strength in RC buildings. The end composite is durable and fireproof. Generally, the main reason why concrete is not use on its own is due to its poor tensile strength.

7 0
3 years ago
Other questions:
  • A thermal energy storage unit consists of a large rectangular channel, which is well insulated on its outer surface and encloses
    7·1 answer
  • If the value of the feedback resistor in the filter is changed but the value of the resistor in the forward path is unchanged, w
    14·1 answer
  • A six-lane multilane highway (three lanes in each direction) has a peak-hour factor of 0.90, 11-ft lanes with a 4-ft right-side
    11·1 answer
  • The flow curve for a certain metal has parameters: strain-hardening
    8·1 answer
  • 1. Using a typical frequency value for the initiating event and PFD values provided in class lectures, estimate the mishap or co
    6·1 answer
  • A water agency stated that waterlines cannot have water flowing faster than 8 ft/s. What is the minimum standard pipe diameter t
    12·1 answer
  • . Which of the following formula is used for calculating current:
    15·1 answer
  • The annual average of solar photovoltaic energy in Phoenix is 6,720
    8·1 answer
  • A tiger cub has a pattern of stripes on it for that is similar to that of his parents where are the instructions stored that pro
    8·1 answer
  • Hello, so I have a watch and I don't know where the plugin for the charger is, or what brand it is. Please do help and please DO
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!