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A puck moves 2.35 m/s in a -22.0° direction. A hockey stick pushes it for 0.215 s, changing its velocity to 6.42 m/s in a 50.0° direction. What is (delta)x?

Oleg Shulakov asked Dec 24, 2024

by Oleg Shulakov

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A 2000 kg car moving East at 10 m/s collides with a 3000 kg car moving north. Find: a) the speed of the two cars after the collision b) the speed of the 3000 kg car before the collision

Joe Hawkins asked Dec 24, 2024

by Joe Hawkins

7.7k points

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2 votes

90.3k views

By how much does a 65.0-kg mountain climber stretch her 0.800-cm diameter nylon rope when she hangs 35.0 m below a rock outcropping? (For nylon, Y=1.35×10^9 Pa.) a) 0.46 m b) 0.92 m c) 1.38 m d) 1.84 m

Ivanmoskalev asked Dec 24, 2024

by Ivanmoskalev

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161k views

Which of the following are in the absorption spectrum? a. emission nebula b. sun c. atmosphere on titan d. planetary nebula

Mllm asked Dec 24, 2024

by Mllm

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1 answer

2 votes

151k views

An object experiences an acceleration of -6.80 m/s². As a result, it accelerates from 54.0 m/s to a complete stop. How much distance did it travel during that period? A) 45.6 meters B) 81.6 meters C) 122.

Gregory Magarshak asked Dec 24, 2024

by Gregory Magarshak

8.4k points

1 answer

2 votes

67.3k views

How many kilopond meters per minute (kpm/min) is 100 watts?

Gasparms asked Dec 24, 2024

by Gasparms

8.2k points

1 answer

2 votes

184k views

a flywheel of mass 5 kg has a radius of 0.2m. it is making 240 rpm. the aveerage torque necessary to bring it to rest in 20 s is _____

Jacob Smith asked Dec 24, 2024

by Jacob Smith

8.3k points

1 answer

4 votes

44.6k views

The number of stars in the Milky Way Galaxy is approximately ________. A) a few million B) a few hundred million C) a few hundred billion D) a few billion

Ali SabziNezhad asked Dec 24, 2024

by Ali SabziNezhad

8.5k points

1 answer

5 votes

90.5k views

a meat baster consists of a squeeze bulb attached to a plastic tube. When the bulb is squeezed and released, with the open end of the tube under the surface of the basting sauce, the sauce rises in the

Ben Junior asked Dec 24, 2024

by Ben Junior

8.1k points

1 answer

3 votes

37.0k views

The cosmic distance ladder begins with the most direct measurements of distance, such as .... A. supernovas B. Cepheid variables C. main sequence fitting D. parallax

David Joyner asked Dec 24, 2024

by David Joyner

8.0k points

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3 votes

128k views

What kind of vacuum tube does a half wave rectifier use? 1. Diode 2. Triode 3. Tetrode 4. Pentode

PanDe asked Dec 24, 2024

by PanDe

8.4k points

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1 vote

165k views

According to the quantum theory of light, the energy of light is carried in discrete units called

Curtor asked Dec 24, 2024

by Curtor

7.8k points

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1 vote

138k views

A rock is thrown horizontally of a bridge at 8.00 m/s. It hits the water's surface below 3.4 seconds later. How high is the bridge? How far from the bridge does it hit the water? I was provided with the

Emobe asked Dec 24, 2024

by Emobe

8.0k points

1 answer

3 votes

34.4k views

Design a parallel multi-range DC voltmeter with voltage ranges of 1 V,10 V,25 V and 75 V. The permanent magnet moving coil (PMMC) meter has an internal resistance of 22Ω and a sensitivity of 95Ω/N. Calculate

Bvz asked Dec 24, 2024

by Bvz

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4 votes

186k views

A student reacts 10g of sodium chloride to make 2.5g sodium metal and chlorine gas in an open container. REACTANT(S): Sodium Chloride PRODUCT(S): Sodium metal + Chlorine gas How much Chlorine gas will

Johan Nordlinder asked Dec 24, 2024

by Johan Nordlinder

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1 answer

4 votes

185k views

How much charge does a 9.0 V battery transfer from the negative to the positive terminal while doing 33 J of work? Express your answer to two significant figures and include the appropriate units. (q=

Whyoz asked Dec 24, 2024

by Whyoz

8.5k points

1 answer

5 votes

45.4k views

(APU limits) Generator frequency: _____ with a maximum oscillation of _____ about a mean value within the _____ hertz band. Option 1: 400Hz, 10Hz, 390-410Hz Option 2: 380Hz, 20Hz, 360-380Hz Option 3: 360Hz,

Krisz asked Dec 24, 2024

by Krisz

7.8k points

1 answer

0 votes

86.6k views

If centripetal force is directed toward the center, why do you feel that you are ‘thrown’ away from the center as a car goes around a curve? Explain. a) The perceived force is an illusion. b) Inertia causes

Sunny Pun asked Dec 24, 2024

by Sunny Pun

8.0k points

1 answer

3 votes

109k views

A 0.5 " ×0.5 " square is to be blanked from a 0.050 " thick piece of sheet metal. For the sheet material, the yield strength is 40ksi, tensile strength is 65ksi and fracture strength is 60ksi. The value

Esa Hannila asked Dec 24, 2024

by Esa Hannila

8.3k points

1 answer

2 votes

200k views

When the entire class claps together, a sound meter records 83 dB. What would you expect it to read when half the class claps? A) 80 dB B) 81 dB C) 82 dB D) 83 dB

Npad asked Dec 24, 2024

by Npad

8.4k points

1 answer

0 votes

150k views

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