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4 years ago

One advantage of a fever is that it can slow down the

Physics

1 answer:

AlexFokin [52]4 years ago

8 0

One advantage of a fever is that it can slow down the growth of pathogens by denaturing their proteins.

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A space vehicle is traveling at 5320 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The

labwork [276]

Answer:

5398.4km/h

Explanation:

IN THIS CASE THE MOMENTUM IS CONSERVED. THE VALUE OF MOMENTUM OF ONE COMBINED ROCKET WILL BE SAME AS OF TWO COMBINED.

Let mass of module be m

then

mass of motor = 4m (four times the mass of rocket module)

total mass = m + 4m = 5m

combined velocity = V = 5320kph

Let

absolute (relative to earth)motor velocity after disengagement = v

then

rocket module velocity (relative to earth) after disengagement = v+98 (relative velocity = 98)

momentum conservation equation

combined momentum = module momentum + motor momentum

(m+4m)V = m(v+98) + 4m*v

5mV = 98m+mv + 4mv

5V = 98+v + 4v (m cancels out)

5V - 98 = 5v

((5*5320)-98)/5 = v

v = 5300.4 km/h

velocity of rocket module relative to earth = v +98

= 5300.4 + 98

= 5398.4km/h

4 0

4 years ago

Acceleration is the rate at which what happens?

belka [17]

Answer:

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

may be it helped you

6 0

3 years ago

The London Eye, which is a giant Ferris wheel, has a diameter of 135 m. It revolves at a constant rate and takes 30 minutes to c

Maurinko [17]

Answer:

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

Explanation:

Diameter = 135 m

Radius, r = 0.5 x 135 = 67.5 m

It revolves at a constant rate and takes 30 minutes

Period, T = 30 minutes= 1800 s

$\texttt{Angular velocity, }\omega =\frac{2\pi }{T}=\frac{2\pi }{1800}=3.49\times 10^{-3}rad/s$

Linear velocity, v = radius x angular velocity

v = 67.5 x 3.98 x 10⁻³ = 0.2355 m/s

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

6 0

3 years ago

In a lab, you perform a double slit experiment to measure the wavelength of a particular laser. When aimed at two slits spaced b

bekas [8.4K]

Answer:

The wavelength of the laser light is 572 nm.

Explanation:

Given that,

Distance between slit d= 0.22 mm

Distance of screen D= 0.5 m

Bright lines = 10

Width y= 1.3 cm

We need to calculate the wavelength

Using formula of young

$y=\dfrac{n\lambda D}{d}$

$\lambda=\dfrac{dy}{nD}$

Put the value into the formula

$\lambda=\dfrac{0.22\times10^{-3}\times1.3\times10^{-2}}{10\times0.5}$

$\lambda=5.72\times10^{-7}\ m$

$\lambda=572\times10^{-9}\ m$

Hence, The wavelength of the laser light is 572 nm.

7 0

3 years ago

Which of the following is NOT usually true of a forensic osteologist?

Paul [167]

Answer:

Explanation:

4 0

3 years ago