Recent questions in Physics

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What is a literature review?

Hanorine asked Dec 27, 2023

by Hanorine

3.1k points

1 answer

23 votes

239k views

the radius of a ball is increasing at a rate of 2 mm per second. how fast is the volume of the ball increasing when the diameter is 40 mm

Comanitza asked Dec 27, 2023

by Comanitza

2.3k points

1 answer

19 votes

229k views

tion 14A 37 kg child holds a 5.9 kg package in a 67 kg boat at rest, and then the child throws the packagehorizontally from the boat at a velocity of +12.4 m/s. What is the velocity of the boat after this?

KishuDroid asked Dec 27, 2023

by KishuDroid

2.1k points

1 answer

3 votes

88.8k views

1)describe how a lightning conductor protect a building from lightning 2) explain how air conditioner cools a room

John Paraskevopoulos asked Dec 27, 2023

by John Paraskevopoulos

2.8k points

1 answer

15 votes

80.7k views

A car advertisement states that a car can accelerate at 2 m/sec. The car starts from rest and accelerates to 70 km/hr. How much time does it take to accelerate to 70 km/hr.

Perty asked Dec 27, 2023

by Perty

2.8k points

1 answer

14 votes

387k views

GUYS THIS IS URGENTTTTTT CAN YOU PLS ANSWER??? It takes a machine 90 seconds to do 54,000 J of work moving a conveyor belt. How much power is used to move the conveyor belt? 600 watts 540 watts 1.6 x 10-3

Aoven asked Dec 27, 2023

by Aoven

3.0k points

1 answer

41 votes

340k views

Find the ratio of the diameter of aluminum to silver wire, if they have the same resistance per unit length (as they might in household wiring).dAl/dAg =

Nestor Urquiza asked Dec 27, 2023

by Nestor Urquiza

2.6k points

1 answer

19 votes

276k views

Help!!! This is worth 30 points pls pls pls help help help A tennis player bounces a tennis ball downwards with her racket. determine how fast the tennis ball is moving after it has moved 0.5 m downwards,

Khachatur asked Dec 27, 2023

by Khachatur

2.7k points

2 answers

10 votes

283k views

The long structure of small intestine is accommodated in small space within our body. Comment.

Andthereitgoes asked Dec 27, 2023

by Andthereitgoes

2.8k points

1 answer

25 votes

509k views

The motion of an object at a constant speed along a circular path is known as: A. Uniform horizontal motion B. Uniform vertical motion C. Uniform circular motion D. Rectilinear motion

Mark Wenzel asked Dec 27, 2023

by Mark Wenzel

3.0k points

2 answers

10 votes

153k views

Robert throws a 3 kg rock at 20 m/s. What is the rock's momentum? a O 0.15 kgm/s O 6.67 kgm/s O 20 m/s O 60 kg . m/s

Danuta asked Dec 27, 2023

by Danuta

3.0k points

1 answer

44 votes

130k views

On a particular day, the following appliances are used for the times indicated: a 1600-W coffee maker, 19 min, and a 1100-W microwave oven, 3.5 min. With these power requirements, find how much it costs

Thegreenpizza asked Dec 27, 2023

by Thegreenpizza

2.8k points

2 answers

31 votes

439k views

A rocket with the mass of 3 kg and has a momentum of 90 kg*m/s. What is the velocity of the rocket? m/s (Round to 2 significant figures)

Declan McNulty asked Dec 27, 2023

by Declan McNulty

2.8k points

1 answer

39 votes

478k views

An atom is most balanced when it has an equal number of protons and electrons. True False

Christopher Camps asked Dec 27, 2023

by Christopher Camps

3.0k points

1 answer

21 votes

12.0k views

Why do the stars and the constellations in the sky appear to change positions throughout the night and throughout the year?.

Bwire asked Dec 27, 2023

by Bwire

3.1k points

1 answer

8 votes

140k views

An electron in the n= 7 state of a hydrogen atom makes a transition to the n= 3 state and emits a photon in the process. What is the wavelength, in nm, of the photon emitted?

Roberto Bonvallet asked Dec 27, 2023

by Roberto Bonvallet

3.0k points

1 answer

36 votes

119k views

When the wave pulses meet they willa- reflect off each other.b- cancel each other but not completely.c- add together.d- cancel each other out completely.

ImagineerThat asked Dec 27, 2023

by ImagineerThat

2.6k points

1 answer

16 votes

262k views

.A 7.5 kg bowling ball would require what force to accelerate it down an alleyway at a rate of 3.2 m/s² down the alley

Jason Palmer asked Dec 27, 2023

by Jason Palmer

2.7k points

1 answer

20 votes

528k views

a boy on a bicycle accelerates by 1.14 m/s^2 . How long does it take him to increase his speed by 8.32 m/s

Forzaa asked Dec 27, 2023

by Forzaa

3.0k points

1 answer

36 votes

23.5k views

Which two elements have the same number of valence electrons? pls help 50 points

DrWhat asked Dec 27, 2023

by DrWhat

3.3k points

1 answer

45 votes

280k views

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