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3 years ago

undefinedIn a gasoline engine, the area in the cylinder head where the air-and-fuel mixture is burned is called the

Physics

1 answer:

ololo11 [35]3 years ago

7 0

Answer:

Combustion chamber

Expalnation

Gasoline engine,

Gasoline engine is a type of internal-combustion engines in this engine when in the combustion chamber air and fuel mixture is burned with ignition initiated by an electric spark that time power is generated.

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Which of the following is an example of work?

EastWind [94]

Answer:

it's D

Explanation:

6 0

3 years ago

A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has an orbital period of 89 min. The r

ehidna [41]

Answer:

Mass of the planet = 6.0 × $10^{24}$

Explanation:

Time period = 2π (R + h) / v

Orbital speed (v) = √GM / (R + h)

T² = 4π² (R + h)² / (GM/ (R + h))

= 4π² (R + h)³ / GM

making m the subject of the formula

m = 4π² (R + h)³ / GT²

= 4π² ( 6.38 × $10^{6}$ + 230 × 10³ )³ / ( 6.67 × $10^{-11}$ ) × (89 × 60)²

= 4π² ( 6610000)³ / ( 6.67 × $10^{-11}$ ) × (89 × 60)²

= 5.99 × $10^{24}$

= 6.0 × $10^{24}$

5 0

3 years ago

Which properties do metalloids share with metals?

Inga [223]

Metals are not brittle so it can’t be the first one or the third one, both metalloids and metals are shiny so it can’t be the second one. Therefore, it would be the last one because both metalloids and metals are shiny and both are solids at room temperature because it is not a high enough melting point.

ANSWER: Both are shiny and are solid at room temperature.

4 0

3 years ago

Read 2 more answers

A(n) 10.7 g bullet is shot into a(n) 4588 g wooden block standing on a frictionless surface. The block, with the bullet in it, a

Goryan [66]

Answer:

v = 747.83 m/s

Explanation:

given,

mass of bullet, m = 10.7 g

= 0.0107 Kg

mass of the wooden plank, M = 4588 g = 4.588 Kg

speed of the block and the bullet together, V = 1.74 m/s

initial speed of the plank = 0 m/s

using conservation of momentum

m v + M u = ( M + m ) V

0.0107 x v + 0 = (4.588 + 0.0107) x 1.74

0.0107 v = 8

v = 747.83 m/s

now, speed of the bullet is equal to 747.83 m/s.

5 0

4 years ago

What is the specific heat capacity of a 250g object that needs 34.125kJ to have its own temperature raised by 65.0∘C

Anestetic [448]

Answer:

Specific heat capacity, = 2.1J/g°C

Explanation:

Given the following data;

Mass = 250g

Quantity of heat = 34.125kJ = 34.125 * 1000 = 34125 Joules.

Change in temperature = 65.0∘C

To find the specific heat capacity;

Heat capacity is given by the formula;

$Q = mcdt$

Where;

Q represents the heat capacity or quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity of water.

dt represents the change in temperature.

Making c the subject of formula, we have;

$c = \frac {Q}{mdt}$

Substituting into the equation, we have;

$c = \frac {34125}{250*65}$

$c = \frac {34125}{16250}$

Specific heat capacity, = 2.1J/g°C

6 0

3 years ago