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2 years ago

1. Which of the following types of energy is

Physics

1 answer:

Sholpan [36]2 years ago

5 0

Answer:

Potential energy is stored energy and the energy of position––gravitational energy. There are several forms of potential energy. Electrical Energy is the movement of electrical charges. Everything is made of tiny particles called atoms.

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1. What are the three ways an object can accelerate?

solong [7]

Answer:

increase speed, decrease speed, and change direction

Explanation:

4 0

3 years ago

A 2 kg object is traveling in a circular path. What is the centripetal acceleration and centripetal force if the radius of the p

Ilya [14]

Answer:

a = v²/R = 10²/6 = 16.7 m/s²

F = mv²/R = 2(16.7) = 33.3 N

Explanation:

3 0

3 years ago

It takes Harry 34 s to walk from x1 = -11 m to x2 = -54 m .

miss Akunina [59]

Missing question:
"What is his velocity? Please answer using two sig figs in m/s."

Solution
The relationship between velocity (v), space (S) and time (t) is
 $v= \frac{S}{t}$
The space covered by Harry is
 $S=x_1 - x_2 = -11 m-(-54 m)=43 m$
and so the velocity is
 $v= \frac{43 m}{34 s} =1.26 m/s$

4 0

4 years ago

Which statement is TRUE about white light?

Olegator [25]

B: It contains all of the wavelengths of the visible light spectrum.
Hope this helps mate =)

6 0

3 years ago

Read 2 more answers

A steel rod with a length of l = 1.55 m and a cross section of A = 4.89 cm2 is held fixed at the end points of the rod. What is

Vedmedyk [2.9K]

Answer:

The size of the force developing inside the steel rod is 32039.28 N

Explanation:

Given;

length of the steel rod, L = 1.55 m

cross sectional area of the steel, A = 4.89 cm²

temperature change, ∆T = 28.0 K

coefficient of linear expansion for steel, α = 1.17 × 10⁻⁵ 1/K

Young modulus of steel, E = 200.0 GPa.

Extension of the steel is given as;

α ∆T L = FL / AE

α ∆T = F/AE

F = AEα ∆T

F = ( 4.89 x 10⁻⁴)(200 x 10⁹)(1.17 × 10⁻⁵)(28.0 K)

F = 32039.28 N

Therefore, the size of the force developing inside the steel rod when its temperature is raised, is 32039.28 N

7 0

3 years ago