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A cannon ball is fired horizontally with a velocity of 50m/s from the top of a cliff 90m high. a. After how many seconds will it strike the plain at the foot of the cliff? b. At what distance from the

Confused Genius asked Dec 28, 2024

by Confused Genius

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165k views

Predict the number of unique resonance peaks that would be found in the 13C NMR spectrum of molecule. A) 1 B) 2 C) 3 D) 4 E) 5

Ridvan asked Dec 28, 2024

by Ridvan

6.9k points

1 answer

3 votes

104k views

How does pitch change when waves are closely spaced?

Slybitz asked Dec 28, 2024

by Slybitz

8.2k points

1 answer

4 votes

97.1k views

This pressure is transmitted to the slave piston that has a surface area of 40 cm². Calculate the force exerted on this piston.

LetsSeo asked Dec 28, 2024

by LetsSeo

7.8k points

1 answer

1 vote

66.7k views

Calculate the current drawn by the primary of a 90% efficient transformer which steps down 220 V to 22 V, if the output resistance is 440 ohm

Magnus Bull asked Dec 28, 2024

by Magnus Bull

7.8k points

1 answer

1 vote

91.0k views

If a 6-kilogram mass is dropped, it will strike the ground with a force of 58.8 newtons. Use Newton's Second Law of Motion to find the rate of acceleration."

Iyesha asked Dec 28, 2024

by Iyesha

8.1k points

1 answer

5 votes

199k views

In a movie, a character cuts a wire, which circuit? It opens the circuit so that electric ch OIt closes the circuit so that electric ch OIt opens the circuit so that electric ch O It closes the circuit

Andrew Goodnough asked Dec 28, 2024

by Andrew Goodnough

7.9k points

1 answer

4 votes

48.6k views

Vector A→ has a magnitude of 8 units and makes an angle of 45° with the positive x-axis. Vector B→ also has a magnitude of 8 units and is directed along the negative x-axis. Using graphical methods, find

Ribtoks asked Dec 28, 2024

by Ribtoks

8.5k points

2 answers

2 votes

42.2k views

What type of forces must be present in order for a structure to remain static?

Leydi asked Dec 28, 2024

by Leydi

8.5k points

1 answer

4 votes

130k views

An object’s velocity at time t is given by v(t) = –2 sin t. Let s(t) represent the object’s position at time t. If s(0) = 0, then s(t) = A. 2 cos t. B. –2 cos t. C. 2 cos t – 2. D. –2 cos t + 2.

Highmastdon asked Dec 28, 2024

by Highmastdon

8.4k points

1 answer

4 votes

201k views

A spherical mirror is to be used to form an image, five times as tall as an object, on a screen positioned 5.0 m from the mirror Describe the type of mirror required.

Zero Fiber asked Dec 28, 2024

by Zero Fiber

7.8k points

1 answer

0 votes

32.0k views

A 39-inch piece of ribbon is cut so that one piece is 33 inches longer than the other. What is the length of the longer piece of ribbon? 72 inches 23 inches 24 inches 172 inches

Randall Kwiatkowski asked Dec 28, 2024

by Randall Kwiatkowski

7.7k points

1 answer

1 vote

181k views

In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocity of 3.56m/s, grabs him. The tackler holds onto the receiver, and the two

Scooterlord asked Dec 28, 2024

by Scooterlord

8.6k points

1 answer

2 votes

177k views

A protein may fold incorrectly if ______ brings the wrong amino acid toribostone to assemble the protein. Options: a. tRNA b. mRNA c. rRNA d. DNA

J Evans asked Dec 28, 2024

by J Evans

8.2k points

1 answer

2 votes

99.9k views

Moe is playing with a yo-yo. He throws the yo-yo down and then pulls it back up. The motion of the yo-yo is represented by the equation y=2x^2−4.8x , where x represents the number of seconds since the

Dave Mackersie asked Dec 28, 2024

by Dave Mackersie

8.0k points

1 answer

4 votes

48.4k views

What is the Alpha coefficient (also known as the "Jensen index")?

Mkamthan asked Dec 28, 2024

by Mkamthan

8.1k points

1 answer

2 votes

26.0k views

If a crank is turned clockwise, what happens to the slider? a. Moves left b. Moves right c. No movement d. Vibrates

Anand Gupta asked Dec 28, 2024

by Anand Gupta

8.7k points

2 answers

5 votes

217k views

A sealed 62 m³ tank is filled with 9000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 k. the gas is heated to a final temperature of 390 k. the atomic mass of oxygen is 16.0 g/mol.

Berzemus asked Dec 28, 2024

by Berzemus

7.3k points

1 answer

1 vote

2.7k views

Pls help (don't know if this is physics) 20 POINTS

Eathen Nutt asked Dec 28, 2024

by Eathen Nutt

7.9k points

1 answer

2 votes

181k views

A potter’s disk spins from rest up to 10 rev/s in 15 s. The disk has a mass 3.0 kg and radius 30.0 cm. What is the angular momentum of the disk at t=5s,t=10 s? a) (t=5s) 9.42 kg m²/s, (t=10s) 18.84 kg

Blind Ninja asked Dec 28, 2024

by Blind Ninja

7.6k points

1 answer

0 votes

180k views

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