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Mice21 [21]
3 years ago
11

A push or pull that causes an object's motion to change is called _____

Physics
1 answer:
12345 [234]3 years ago
6 0

Answer:

Force

Explanation:

Force is a pull or push that causes An objects motion to change . When force is applied to an object , it either pushes the object to or pulls it from something thereby changing the motion of the object. A good example is the earth’s gravitational force. This force pulls or attracts a body to the center of the earth . Another example Is experienced when kicking a football from one part of a football field to another. The ball is kicked with force and this causes it to move from one place another .

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Which labels correctly identify the layers most closely associated with gamma rays and visible light? Z: Gamma rays X: Visible l
Marianna [84]
The answer is Z: Gamma rays X: Visible light. Gamma ray is the shortest and has the greatest frequency and power. That is why it is in letter Z.
4 0
3 years ago
A typical car has 16 L of liquid coolant circulating at a temperature of 95 ∘C through the engine's cooling system. Assume that,
amm1812

Answer:

\Delta V=0.0592\ L

Explanation:

Given:

  • Initial temperature of the coolant, T_f=95^{\circ}C
  • final temperature of the coolant, T_f=105^{\circ}C
  • total volume of the coolant, V_c=16\ L
  • coefficient of volume expansion for coolant, \beta_c=410\times 10^{-6}\ ^{\circ}C^{-1}
  • volume of Al radiator, V_a=2\ L
  • volume of steel radiator,  V_s=14\ L

<u><em>We have:</em></u>

coefficient of volume expansion for Aluminium, \beta_a=75\times 10^{-6}\ ^{\circ}C^{-1}

coefficient of volume expansion for steel, \beta_a=35\times 10^{-6}\ ^{\circ}C^{-1}

<u>Now, change in volume of the coolant after temperature rises:</u>

\Delta V_c=V_c.\beta_c.\Delta T

\Delta V_c=16\times 410\times 10^{-6}\times (105-95)

\Delta V_c=0.0656\ L

<u>Now, volumetric expansion in Aluminium radiant:</u>

\Delta V_a=V_a.\beta_a.\Delta T

\Delta V_a=2\times 75\times 10^{-6}\times (105-95)

\Delta V_a=0.0015\ L

<u>Now, volumetric expansion in steel radiant:</u>

\Delta V_s=V_s.\beta_s.\Delta T

\Delta V_s=14\times 35\times 10^{-6}\times (105-95)

\Delta V_s=0.0049\ L

∴Total extra accommodation volume created after the expansion:

V_X=\Delta V_s+\Delta V_a

V_X=0.0049+0.0015

V_X=0.0064\ L

Hence, the volume that will overflow into the small reservoir will be the volume of coolant that will be extra after the expanded accommodation in the radiator.

\Delta V=\Delta V_c-\Delta V_X

\Delta V=0.0656-0.0064

\Delta V=0.0592\ L

3 0
3 years ago
Rajani had bought a new bottle of pickle from the market. She tried to open the
dem82 [27]

Answer:

The pickle bottle cap on dipping it in hot water expanded.

Explanation: Hope it helps you:))))

Have a good day

4 0
2 years ago
An object with a mass of 8.9kg has a force of 92.0 Newtons applied to it. What is the resulting acceleration
lesya [120]

Answer:

10.337m/s2

Explanation:

F=ma

a=F/m

a = 92 / 8.9 = 10.337m/s2

8 0
3 years ago
What is the power output in an ac series circuit with 12.0 Ω of resistance, 15.0 Ω of inductive reactance, and 10.0 Ω of capacit
Bad White [126]

Answer:

1022.485 Watt

Explanation:

resistance, R = 12 ohm

Inductive reactance, XL = 15 ohm

Capacitive reactance, Xc = 10 ohm

Vrms = 120 V

Power is given by

P = Vrms x Irms x CosФ

Where, CosФ is called power factor

CosФ = R / Z

Where Z is the impedance

Irms = Vrms / Z

So,

P = \frac{\left (V_{rms}^{2}\times R  \right )}{Z^{2}}

Z = \sqrt{R^2+\left ( X_{L}-X_{c} \right )^{2}}

Z = \sqrt{12^2+\left ( 15-10 \right )^{2}}

Z = 13 ohm

So,

P = \frac{\left (120^{2}\times 12  \right )}{13^{2}}

P = 1022.485 W

Thus, the power is 1022.485 Watt.

7 0
3 years ago
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