1) if you increase the mass on an objectwhose mass stays constant, its acceleration will _____________

The Hermes spacecraft is traveling at 0.1c(1/10 the speed of light past Mars and shines a laser in front of the ship. You would

Oksi-84 [34.3K]

Answer:

So, according to Einstein's special relativity a person on Mars observe the light to be traveling at c = 3 x 10⁸ m/s.

Explanation:

The special theory of relativity has two main postulates:

1- VALIDITY OF PHYSICAL LAWS

The laws of physics such as Newton's Laws and Maxwell's Equations are valid in all inertial frame of references.

2- CONSTANCY OF SPEED OF LIGHT

The speed of light in vacuum is the same for all observers in uniform translational relative motion, and it is independent of the motion of the source or the observer. Thus, speed of light is a universal constant and its value is c = 3 x 10⁸ m/s.

So, according to Einstein's special relativity a person on Mars observe the light to be traveling at c = 3 x 10⁸ m/s.

5 0

3 years ago

Two objects, A and B, have the same volume and are completely submerged in a liquid, although A is deeper than B. Which object,

kotegsom [21]

Answer:it would probably be C

Explanation:

7 0

3 years ago

Gas stored in a tank at 273 k has a pressure of 388kpa. The safe limit for the pressure is 825kpa at whst temperature Will gas r

vagabundo [1.1K]

Answer:

The answer to your question is T2 = 580.5 °K

Explanation:

Data

Temperature 1 = T1 = 273°K

Pressure 1 = P1 = 388 kPa

Pressure 2 = P2 = 825 kPa

Temperature 2 = ?

Process

1.- Use the Gay-Lussac law

P1/T1 = P2/T2

-Solve for T2

T2 = P2T1/P1

-Substitution

T2 = (825)(273) / 388

-Simplification

T2 = 225225 / 388

-Result

T2 = 580.5 °K

6 0

4 years ago

A car accelerates away from a stop sign. Is the work done negative or positive? Explain why.

erma4kov [3.2K]

Answer:

positively

Explanation:

Because there is and absolute number so no matter the they accelerate backwards or forwards, they will still be traveling away at an positive number.

8 0

3 years ago

A wooden toroidal core with a square cross section has an inner radius of 14 cm and an outer radius of 16 cm. It is wound with o

allochka39001 [22]

Answer with Explanation:

We are given that

Inner radius of wooden toroidal core= $r_1=14$ cm

Outer radius of wooden toroidal core= $r_2=16$ cm

Diameter of wire=1.0 mm

Resistance per meter=0.020 ohm/m

a.We have to find the inductance of the toroid.

Inner circumference of toroid= $2\pi r_1=2\times \frac{22}{7}\times 14=88$ cm=880 mm

$\pi=\frac{22}{7}$

1 cm=10 mm

Number of turns is roughly ,N= $\frac{880}{1}\approx 880$

h= $r_2-r_1=16-14=2 cm=0.02 m$

1 m=100 cm

Inductance of the toroid= $\frac{\mu_0N^2h}{2\pi}ln\frac{r_2}{r_1}$

Substitute the values then, we get

$L=\frac{4\pi\times 10^{-7}\times (880)^2\times 0.02}{2\pi}\times ln\frac{16}{14}$

$\mu_0=4\pi\times 10^{-7}$

$L=4.1\times 10^{-4} H$

Hence, the inductance of the toroid= $4.1\times 10^{-7}$ H

b.We have to find the inductive time constant of toroid.

Total length of wire= $4(880)\times \frac{2}{100}=70.4 m$

Because, total number of turns=880

Perimeter of square = 4 times the side of the square

Side of square shaped loop=2 cm

Resistance of wire= $70.4\times 0.02=1.408$ ohm

Inductive time constant $=\frac{L}{R}$

Inductive time constant= $\frac{4.1\times 10^{-4}}{1.408}=2.91\times 10^{-4} s$

Hence, the inductive time constant of toroid= $2.91\times 10^{-4} s$

6 0

3 years ago

1) if you increase the mass on an objectwhose mass stays constant, its acceleration will ______________.