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4 years ago

11

HELPPP WILL GIVE BRAINLIEST!!!!

1 answer:

marishachu [46]4 years ago

4 0

Explanation:

Thermal energy is basically the energy derived from heat when there is a temperature change in a body.

Kinetic energy is the energy due to the motion of a body.

Potential energy is the energy at rest or due to the position of a body.

Thermal energy is highly related to kinetic and potential energy.
Thermal energy is a type of kinetic energy because it causes the motion of the particles in a body.
An increase in thermal energy gives the particles more energy to move and then, their kinetic energy increases.
Kinetic energy is directly related to thermal energy.
A low thermal energy increases the potential energy in a body.
A body at rest will exert its maximum potential energy.

learn more:

Thermal energy brainly.com/question/914750

#learnwithBrainly

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A(n) _______ is a line in which waves move that are moving together all in the same phase

Gekata [30.6K]

Answer:

wave front

Explanation:

wave front is an imaginary line of a wave that joins all adjacent points that are in phase,

so that's the definition, and you apply it to the question

it obviously can't be the rest

hope you get it

please mark it brainliest

4 0

3 years ago

Read 2 more answers

Estimate the volume of each ball. Use the formula

Mila [183]

The given question is incomplete. The complete question is:

Estimate the volume of each ball. Use the formula $v=\frac{4\pi\times r^3}{3}$ where v is the volume and r is the radius. record the volume in table A of your student guide. The radius of the tennis ball is 2.1 cm and the radius of thr golf ball is 2.0 cm. What is the estimated volume of the table tennis ball in $cm^3
$ What is the estimated volume of the golf ball in

Answer: Volume of the tennis ball is $38.8cm^3$ and Volume of the golf ball is $33.5cm^3$

Explanation:

We have to find the Volume of tennis ball and golf ball by using the formula $v=\frac{4\pi\times r^3}{3}$

Radius of the tennis ball = 2.1 cm

Radius of the golf ball =2.0 cm.

Putting the value of radius in the formula , we get:

Volume of the tennis ball = $\frac{4\times 3.14\times (2.1cm)^3}{3}
=38.8cm^3$

Volume of the golf ball = $\frac{4\times 3.14\times (2.0cm)^3}{3}
=33.5cm^3$

Volume of the tennis ball is $38.8cm^3$ and Volume of the golf ball is $33.5cm^3$

6 0

3 years ago

Read 2 more answers

kakasveta [241]

Answer:

W = 600 J

Explanation:

We have,

According to attached figure,

Height of the inclined plane is 60 m

Force acting on the block is 10 N

It is required to find the work must be done against gravity to move it to the top of the incline. The work done is given by :

W = mgh

or

$W=F\times h\\\\W=10\times 60\\\\W=600\ J$

So, the work done against the gravity is 600 J.

3 0

3 years ago

Numerical Problems

Evgesh-ka [11]

Answer:

a = 5 [m/s²]

Explanation:

To solve this problem we must use the following equation of kinematics.

$v_{f}=v_{o}+a*t$

where:

Vf = final velocity = 20 [m/s]

Vo = initial velocity = 10 [m/s]

t = time = 2 [s]

a = acceleration [m/s²]

Now replacing:

$20 =10 +a*2\\10=2*a\\a=5[m/s^{2} ]$

4 0

3 years ago

The rate constant of a reaction is 7.8 × 10−3 s−1 at 25°C, and the activation energy is 33.6 kJ/mol. What is k at 75°C? Enter yo

Alexus [3.1K]

Answer:

k_2 = 7.815 * 10^-3 s^-1

Explanation:

Given:

- rate constant of reaction k_1 = 7.8 * 10^-3 s^-1 @ T_1 = 25 C

- rate constant of reaction k_2 = ? @ T_2 = 75 C

- The activation energy E_a = 33.6 KJ/mol

- Gas constant R = 8.314472 KJ / mol . K

Find:

- rate of reaction k_2 @ T_2 = 75 C

Solution:

- we will use a combined form of Arrhenius equations that relates rate constants k as function of E_a and temperatures as follows:

k_2 = k_1 * e ^ [(E_a / R) * ( 1 / T_1 - 1 / T_2 )

- Evaluate k_2 = 7.8 * 10^-3* e^[(33.6 / 8.314472)*(1/298 -1/348)

- Hence, k_2 = 7.815 * 10^-3 s^-1

4 0

3 years ago