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Answer updated on: 12 Feb 2020

A 1.5-kg cart is pulled with a force of 7.3 N at an angle of 40� above the horizontal. If a kinetic friction force of 3.2 N acts against the motion, the carts acceleration along the horizontal...

1.6 m/s2

1 Answer

Answer updated on: 12 Feb 2020

A 621.0-g iron meteor impacts the earth at a speed of 1922.0 m/s. If its energy is entirely converted to heat of the meteorite, what will the resultant temperature rise be? (The specific heat for...

4000 Celcius

1 Answer

Answer updated on: 12 Feb 2020

A 621.0-g iron meteor impacts the earth at a speed of 1922.0 m/s. If its energy is entirely converted to heat of the meteorite, what will the resultant temperature rise be? (The specific heat for...

4000 Celcius

1 Answer

Answer updated on: 12 Feb 2020

What is a double displacement chemical reaction?

Exchange of two different atoms between two compounds.

1 Answer

Answer updated on: 12 Feb 2020

An acoustic guitar contains a sound box that increases the loudness of the sounds the strings make. This is due to the property called

Resonance

1 Answer

Answer updated on: 12 Feb 2020

Albedo is a measure of the percentage of light that is

Reflected by an object.

1 Answer

Answer updated on: 12 Feb 2020

All images in plane mirrors are:

Virtual and upright

1 Answer

Answer updated on: 12 Feb 2020

The amount of work done to stop a bullet travelling through a tree trunk a distance of 50 cm with a force of 2.00 � 102 N is

�1.00 x 102 J

1 Answer

Answer updated on: 12 Feb 2020

The amount of work done to stop a bullet travelling through a tree trunk a distance of 50 cm with a force of 2.00 � 102 N is

�1.00 x 102 J

1 Answer

Answer updated on: 12 Feb 2020

An student is located 1.8 m from a plane mirror. How far is the image from the student?

3.6 m

1 Answer

Live Questions
Under Moderation

Asked on: 15 Feb 2020

\r\nWhich of the following descriptions best represents the acceleration-time graph of a car that pulls away from a corner when the light turns green, reaches and maintains a constant velocity,...

1 Answer

Asked on: 15 Feb 2020

How many grams of rocks at 200oC must be added to 100 grams of water to raise the water temperature from 20oC to 80oC? In the ice ages, cave men and women didnt have pots and pans they could set...

1 Answer

Asked on: 14 Feb 2020

At midnight, you walk outside. The temperature of the air has been exactly -12 Celcius for several hours. You touch a metal fence post, a block of wood, and some snow. Apply the...

1 Answer

Asked on: 14 Feb 2020

\r\nWhich of the following observations would be adequately explained by Newtons third law?

1 Answer

Asked on: 12 Feb 2020

\r\nA light ray has an angle of incidence of 34�. The reflected ray will make what angle with the reflecting surface?

1 Answer

Asked on: 11 Feb 2020

Which of the following graphs shows acceleration?

1 Answer

Asked on: 09 Feb 2020

What angle will the reflected ray make with the reflecting surface if the angle of incidence is 34?

2 Answers

Asked on: 08 Feb 2020

\r\nThe value of g at the surface of Mars is 3.7 N/kg. How much would a 60.0-kg person weigh at an altitude above the Martian surface equivalent to the planets radius?

2 Answers

Asked on: 02 Feb 2020

In the ice ages, cave men and women didnt have pots and pans they could set on the fire to heat water for tea. Instead, they had tightly woven waterproof bags and dropped hot rocks from the...

1 Answer

Asked on: 25 Jan 2020

Where will the image be located? An object is placed between f and 2f for a diverging lens.

1 Answer

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