All categories

3 years ago

Calculate the density of a substance in pen- nyweights per peck that has a volume of 0.333 hogsheads and a mass of 49.62 kg.

1 answer:

4 0

Density is a physical property of a substance that represents the mass of that substance per unit volume. It is a property that can be used to describe a substance. We calculate as follows:

Density = 49.62 kg ( 1000 g / 1 kg ) (1 pw / 1.55 g ) / 0.333 hogsheads ( 238.5 L / 1 hogshead ) ( 1 peck / 9.091 L )

Density = 3664.41 pw / pk

You might be interested in

A ray of light traveling in water (n = 1.33) is incident at the flat surface of a block of glass (n = 1.60). If the incident ray

mel-nik [20]

Answer:

$45.19^{\circ}$

Explanation:

We are given that

$n_1=1.33$

$n_2=1.6$

$\theta_1=58.6^{\circ}$

We have to find the angle of refraction.

By Snell's law

$n_1sin\theta_1=n_2sin\theta_2$

Substitute the values

$1.33sin58.6=1.6sin\theta_2$

$sin\theta_2=\frac{1.33sin58.6}{1.6}$

$sin\theta_2=0.7095$

$\theta_2=sin^{-1}(0.7095)=45.19^{\circ}$

Hence, the angle mad by refracted ray in to the glass with normal= $45.19^{\circ}$

7 0

3 years ago

Which describes radioactive decay of a substance?

Margarita [4]

Radioactive decay is the loss of elementary particles from an unstable nucleus, ultimately changing the unstable element into another more stable element. There are five types of radioactive decay: alpha emission, beta emission, positron emission, electron capture, and gamma emission.

4 0

3 years ago

A small spinning asteroid is in a circular orbit around a star, much like the earth's motion around our sun. The asteroid has a

Fudgin [204]

Answer:

Temperature will be 305 K

Explanation:

We have given The asteroid has a surface area $A=7.70m^2$

Power absorbed P = 3800 watt

Boltzmann constant $\sigma =5.67\times 10^{-8}Wm/K^4$

According to Boltzmann rule power radiated is given by

$P=\sigma AT^4$

$3800=5.67\times 10^{-8}\times 7.70\times T^4$

$T^4=87.0381\times 10^8$

$T=305K$

So temperature will be 305 K

8 0

4 years ago

Two objects, X and Y, move toward one another and eventually collide. Object X has a mass of 2M and is moving at a speed of 2vo

Nady [450]

Answer:

The force exerted by X on Y is F to the right, and the force exerted by Yon X is F to the left.

Explanation:

There are two objects X and Y. Mass of object X is 2M, that is moving with a speed of $2v_o$ and that of object Y is M that is moving with a speed of $v_o$ .

When both of the objects collide, the magnitude of the forces F the objects exert on each other is equal to :

The force exerted by X on Y is F to the right, and the force exerted by Yon X is F to the left using Newton's third law of motion. Hence, the correct option is (c).

3 0

3 years ago

A time-dependent but otherwise uniform magnetic field of magnitude B0(t) is confined in a cylindrical region of radius 6.5 cm. I

Papessa [141]

Answer:

The acceleration is $a = 3.45*10^{3} m/s^2$