What is the specific heat of a metal if it takes 15,000 J of heat to raise the temperature of 20 points
a 620-9 sample from 15.0C to 85.0C?

Answer:

There are 4

Explanation:

Answer:

False

Explanation:

Answer:

The answer is 1100kg.

Explanation:

First, you have to find the acceleration using the formula, a = (v-u)/t where v is final speed, u is initial speed and t is time :

[tex]a = \frac{v - u}{t} [/tex]

[tex]a = \frac{27 - 0}{4.5} [/tex]

[tex]a = 6m {s}^{ - 2} [/tex]

Next, you have to apply force formula, F = m×a where m is mass :

[tex]F = m \times a[/tex]

[tex]6600 = m \times 6[/tex]

[tex]m = 6600 \div 6[/tex]

[tex]m = 1100kg[/tex]

Answer:

I'm pretty sure it makes a white light... i could be wrong and sorry if I am

Answer:

it's either A or B because lighting is an electrical discharge caused by imbalance between storm clouds and the ground

Explanation:

pretty sure it's A though

Answer:

The polar coordinate of [tex]P(x,y) = (-3.50\,m,-2.50\,m)[/tex] is [tex]P (r,\theta) = (4.301\,m, 215.538^{\circ})[/tex].

Explanation:

Given a point in rectangular form, that is [tex]P(x,y) = (x,y)[/tex], its polar form is defined by:

[tex]P(x,y) = (r,\theta)[/tex] (1)

Where:

[tex]r[/tex] - Norm, measured in meters.

[tex]\theta[/tex] - Direction, measured in sexagesimal degrees.

The norm of the point is determined by Pythagorean Theorem:

[tex]r = \sqrt{x^{2}+y^{2}}[/tex] (2)

And direction is calculated by following trigonometric relation:

[tex]\theta = \tan^{-1} \frac{y}{x}[/tex] (3)

If we know that [tex]x = -3.50\,m[/tex] and [tex]y = -2.50\,m[/tex], then the components of coordinates in polar form is:

[tex]r = \sqrt{(-3.50\,m)^{2}+(-2.50\,m)^{2}}[/tex]

[tex]r \approx 4.301\,m[/tex]

Since [tex]x < 0\,m[/tex] and [tex]y < 0\,m[/tex], direction is located at 3rd Quadrant. Given that tangent function has a period of 180º, we find direction by using this formula:

[tex]\theta = 180^{\circ}+\tan^{-1} \left(\frac{-2.50\,m}{-3.50\,m} \right)[/tex]

[tex]\theta \approx 215.538^{\circ}[/tex]

The polar coordinate of [tex]P(x,y) = (-3.50\,m,-2.50\,m)[/tex] is [tex]P (r,\theta) = (4.301\,m, 215.538^{\circ})[/tex].

Answer:

swamp

Explanation:

I think. The desert is hot and less humid. Mountain is more cold. Tundra...no

Answer:

I would say 3N

Explanation:

Answer:

The first one is 12N and the second one is -22 m/s2

Explanation:

I'm pretty sure these are correct, i just finished that unit in school. I hope this helps:) Have a great day, God bless!

Answer: B

Explanation:

It will move slower than the light the object. The equation is Newton's 2nd Law of F = ma. If the force is constant, and the mass changes to something larger, then the acceleration must become smaller. You could also just do this yourself, push two objects with your hands. The heavier one will move slower assuming you used the same amount of force

750 energy jack percent efficient

Answer:

true

Explanation:

Answer:

C = 1.01

Explanation:

Given that,

Mass, m = 75 kg

The terminal velocity of the mass, [tex]v_t=60\ m/s[/tex]

Area of cross section, [tex]A=0.33\ m^2[/tex]

We need to find the drag coefficient. At terminal velocity, the weight is balanced by the drag on the object. So,

R = W

or

[tex]\dfrac{1}{2}\rho CAv_t^2=mg[/tex]

Where

[tex]\rho[/tex] is the density of air = 1.225 kg/m³

C is drag coefficient

So,

[tex]C=\dfrac{2mg}{\rho Av_t^2}\\\\C=\dfrac{2\times 75\times 9.8}{1.225\times 0.33\times (60)^2}\\\\C=1.01[/tex]

So, the drag coefficient is 1.01.

Answer: Change distance and charge

Explanation:

Increase the distance between the two particles, and remove charge from one or more of the particles.

Coulomb's Law is:

[tex]F=\frac{kq_1q_2}{r^2 }[/tex]

k being a constant of 8.99 x 10^9 (units)

q1 and q2 being the magnitude of charges

r being the distance between them

Answer:

c

Explanation:

a, b, and d are examples of moving forward

while c is moving backwards.

Answer:

driver distraction

Explanation:

Studies and historical data show that the major cause of this is due to driver distraction. When driving many times a driver may look somewhere other than the road and get distracted which accidentally causes the driver to steer outside of the right shoulder of the pavement. This can also be due to the driver becoming tired/sleepy after driving for countless hours or even making a quick maneuver due to oncoming traffic getting too close. Regardless, all of these fall under driver distraction.

Answer:

Here is your ans pic

hope its helps you

Explanation:

pls make brainliest

tq

There are 4 atoms total.

In a molecule of sulfur trioxide, [tex]S0_{3}[/tex] , there are total of four atoms. Three atoms are of oxygen and one of sulfur.

A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds.

Atom is the smallest particle of a chemical element that can exist.

To learn more about Molecule and Atom here

https://brainly.com/question/25617532

#SPJ2

Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not.

Ultraviolet Rays in the electromagnetic Spectrum Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.

Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of Vitamin C.

Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not,

Hence light from the ultraviolet flashlight harden the filling when light from the lamp does not.

To learn more about the ultravoilet ray refer to thr link;

https://brainly.com/question/25780677

Answer:

unbalanced force,

Explanation:

The bigger the unbalanced force acting on the object the bigger the acceleration of the object. The more mass the object has, the more inclined it is to resist any change to its motion.

Answer:

Matter is made up of atoms.

Answer:

there are go fella hope u understood

The mass of the object is 20 g

The first step is to write out the parameters given in the question

Force- 500 N

acceleration= 25 m/s²

mass= force/acceleration

= 500/25

= 20

Hence the mass  of the object is 20g

Please see the link below for more information

https://brainly.com/question/24285803?referrer=searchResults

Answer:

Yeah I know you will try to get me this weekend so I can make sure I get a good time and I will talk to you later bye and get back to you

Answer

hdhcu very much xbeyxbuxbduxb shx

Answer:

D. x-rays

Explanation:

Lower frequency: Radio waves, microwaves and infrared have lower frequency than visible light. Shorter wavelength: Ultraviolet, x-rays and gamma rays have a shorter wavelength than visible light.