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You set up a photo-gate timer experiment with a cart being pulled via pulleys by a mass on a string. Your cart is 12 cm long. You place two photo-gates 0.70 m apart, and they record times of 0.30 s and

Gozde asked Oct 16, 2024

by Gozde

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4 votes

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The total length of two ships is 2561 feet. The difference in their lengths is 5 feet. a. Find the length of each ship. b. If a football field has a length of 100 yards, determine the length of the longer

Doug Lerner asked Oct 16, 2024

by Doug Lerner

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1 answer

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113k views

When a squirrel jumps from a tree limb onto a birdfeeder, what forces are acting on the squirrel during the jump?

Viswesvar Sekar asked Oct 16, 2024

by Viswesvar Sekar

8.8k points

1 answer

1 vote

201k views

Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat? 10.0 g ethanol, Cethanol = 2.42 J/g°C 10.0 g Cu, CCu

Root asked Oct 16, 2024

by Root

7.5k points

1 answer

4 votes

31.5k views

If you were trying to move the couch across the room and your best friend is on the couch, what changes the amount of friction between the couch and the floor? A. The presence of your best friend increases

Abhishek Gurjar asked Oct 16, 2024

by Abhishek Gurjar

8.6k points

1 answer

5 votes

83.6k views

What factors affect how much gravitational potential energy an object has? A) Mass B) Vertical position C) Velocity D) Horizontal position

Zzztimbo asked Oct 16, 2024

by Zzztimbo

7.6k points

1 answer

3 votes

194k views

How much force must be exerted at A to support the 850 kg car at B? The piston at A has a diameter of 17 mm, and the piston B has a diameter of 300 mm.

Andrew Tomazos asked Oct 16, 2024

by Andrew Tomazos

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1 answer

2 votes

207k views

What is a synonym for "twine" (v.)? a) Entwine b) Curl c) Braid d) Spin

Mudassir Ali asked Oct 16, 2024

by Mudassir Ali

8.6k points

1 answer

2 votes

93.9k views

Blood takes about 1.25 s to pass through a 2 mm long capillary. if the diameter of the capillary is 5 micrometers and the pressure drop is 2.45 kpa, calculate the viscosity n of blood. assume laminar flow.

Mohammed Wazeem asked Oct 16, 2024

by Mohammed Wazeem

8.3k points

1 answer

5 votes

215k views

2. If a person pulls on a cart to the right with a force of 7 N and another person pulls to the left with a force of 13 N, what is the net force? Is it balanced or unbalanced? Label picture with direction

Yann VERY asked Oct 16, 2024

by Yann VERY

7.8k points

1 answer

4 votes

155k views

Shanda Lear decelerates her motorcycle at a rate of 0.83 m/s² in order to avoid debris in the road. If it takes her 4.1 seconds to slow down to 7.9 m/s, what was the initial velocity she was riding at?

Jos Van Weesel asked Oct 16, 2024

by Jos Van Weesel

8.0k points

1 answer

2 votes

6.7k views

Two automobiles travel in opposite directions from the same starting point. If the speed of one is twice the speed of the other and they are 160.0km apart at the end of 3.0h,what is the speed of the slower

John Reilly asked Oct 16, 2024

by John Reilly

8.3k points

1 answer

5 votes

223k views

Cricket stump Before a game of cricket, the players must push the stumps into the ground. The picture shows four different situations the stump may be pointed or blunt, and the force may be large or small.

Johni asked Oct 16, 2024

by Johni

8.2k points

1 answer

3 votes

152k views

Click on the value of the pressure on the y-axis of the phase diagram that needs to be applied to liquefy at room temperature in Tucson (300 K). Options: Low pressure Moderate pressure High pressure Ultra-high

Heilala asked Oct 16, 2024

by Heilala

8.7k points

1 answer

2 votes

169k views

Why is compressed air highly useful to us?

David Tischler asked Oct 16, 2024

by David Tischler

8.6k points

1 answer

2 votes

231k views

Is a chemical formula and chemical equation the same?

Luke Tan asked Oct 16, 2024

by Luke Tan

7.6k points

1 answer

3 votes

80.5k views

Water has a density of ~ 1 gr/cm3 ~ 1000 kg/m3. Estimate the mass of Earth’s oceans (in kg). a) 1.35 x 10^21 kg b) 1.50 x 10^21 kg c) 1.75 x 10^21 kg d) 2.00 x 10^21 kg

Ilya Streltsyn asked Oct 16, 2024

by Ilya Streltsyn

7.7k points

1 answer

0 votes

144k views

What Is a Fluid? What physical characteristic distinguishes a fluid from a solid?

Krishna Vyas asked Oct 16, 2024

by Krishna Vyas

8.5k points

1 answer

5 votes

72.6k views

An RLC series circuit has a 2.50 Ω resistor, a 100 μH inductor, and an 80.0 μF capacitor. Find the power factor at f=120 Hz. a) 0.85 b) 0.92 c) 0.67 d) 0.78

Giusy asked Oct 16, 2024

by Giusy

7.1k points

1 answer

5 votes

149k views

A 3m ladder stands on horizontal ground and reaches 2.8m up a vertical wall. How far is the bottom of the ladder from the wall? a) What is the distance between the bottom of the ladder and the wall? 0.

Ben Hayden asked Oct 16, 2024

by Ben Hayden

8.1k points

1 answer

0 votes

74.8k views

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