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Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1750 kg and was approaching at 6.00 m/s due south. The second car has a mass of 700 kg and was approaching

TheTisiboth asked Jul 28, 2023

by TheTisiboth

7.1k points

1 answer

2 votes

104k views

In the design of eyeglasses with anti-reflection coating, the most important aspect to make right is the:

Tanmally asked Jul 28, 2023

by Tanmally

6.0k points

1 answer

1 vote

198k views

A transformer has 132 kV across its primary coil and 33 kV across the secondary coil. It produces a current of 8 A in its secondary coil. How much current flows through the primary coil? [4 marks]

Bianny asked Jul 28, 2023

by Bianny

6.6k points

1 answer

5 votes

208k views

Which of the following is the minimum amount of work done by a hydraulic lift to raise a 150-kg aluminum block 2.0 m vertically? a. 300 J b. 2940 J c. 1470 J d. 75 J

Yifat asked Jul 28, 2023

by Yifat

7.6k points

2 answers

3 votes

137k views

The Borg Scale uses a perceived exertion rating of A. 1-10 B.6-20 C. 100-200 D. 15-30

Ravena asked Jul 28, 2023

by Ravena

6.5k points

1 answer

16 votes

97.6k views

A car has a kinetic energy of 4.32 x 10J when traveling at a speed of 23 m/s. What is its mass?

Csoltenborn asked Jul 28, 2023

by Csoltenborn

6.4k points

1 answer

7 votes

190k views

If Earth were a perfect sphere, would you weigh more or less at the equator than at the poles? Explain

Letuboy asked Jul 28, 2023

by Letuboy

6.2k points

1 answer

3 votes

76.8k views

A 2 kg ice cube is released from point A and slides on a frictionless track as shown in the figure. Determine the speed of the cube at points B and C.

Baalateja Kataru asked Jul 28, 2023

by Baalateja Kataru

6.0k points

1 answer

25 votes

218k views

1. Can all the hills on a roller coaster be the same height? If not, why?

Dezefy asked Jul 28, 2023

by Dezefy

6.7k points

1 answer

5 votes

210k views

Casey runs m if he can maintain a speed of 6 m/s for 7 s. d= vt

Triana asked Jul 28, 2023

by Triana

6.0k points

1 answer

4 votes

158k views

A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. The trains collide. After the collision the green train moves with a speed of 3 m/s. What is the final momentum

PanchaGil asked Jul 28, 2023

by PanchaGil

7.0k points

1 answer

1 vote

113k views

A block of mass 2kg which is placed on a horizontal surface is pulled by a horizontal force of 50N. What maximum coefficient of static friction is required? gravity=10m/s2

Varotariya Vajsi asked Jul 28, 2023

by Varotariya Vajsi

6.2k points

1 answer

1 vote

27.1k views

True or false. Molasses is a less valuable by product of sugar production?

Youss asked Jul 28, 2023

by Youss

5.9k points

1 answer

3 votes

127k views

Which state of matter takes the shape and volume of its container?

Kibet Yegon asked Jul 28, 2023

by Kibet Yegon

6.0k points

1 answer

5 votes

31.7k views

A new planet is discovered! It has a mass of 4.28 10^24 kg and a radius of 5300 km. A spacecraft is put in orbit at an altitude of 460 km above the surface of the planet. The satellite has a mass of 3120

Cce asked Jul 28, 2023

by Cce

6.7k points

1 answer

3 votes

36.9k views

20 POINTSSS PLS HELP Imagine if the Earth suddenly sped up. What do you think would happen to its orbit?

Atclaus asked Jul 28, 2023

by Atclaus

5.8k points

1 answer

0 votes

220k views

The figure below shows a ray of light as it travels from media A to media B.The refractive index of media B to media A is

Hester Lyons asked Jul 28, 2023

by Hester Lyons

6.0k points

1 answer

4 votes

230k views

Oil having a density of 924 kg/m? floats onwater. A rectangular block of wood 3.59 cmhigh and with a density of 975 kg/m° floatspartly in the oil and partly in the water. Theoil completely covers the block.

Nitzan Volman asked Jul 28, 2023

by Nitzan Volman

6.7k points

1 answer

5 votes

124k views

Which law of motion is this and why? When Megan drives to work, he puts her bag in the passenger seat. When she breaks at the stoplight, the bag falls onto the floor.

Sherley asked Jul 28, 2023

by Sherley

5.9k points

1 answer

1 vote

144k views

Which number represents runoff on the hydrologic cycle diagram? 1 2 3 4

PeterMader asked Jul 28, 2023

by PeterMader

6.9k points

2 answers

19 votes

1.6k views

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