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Physics
Page 70
Questions (146,360)
Assume that a certain city consumes electrical energy at an average rate of 2.0× 10^9 W. What would be the mass change
in
3 answers
asked by
Justin
1,938 views
You drop a ball from a height of 2.0 m and it bounces back to a height of 1.5 m (a) What fraction of its initial energy is lost
3 answers
asked by
jen
1,864 views
A bat moving at 5 meters per second is chasing a flying insect, if the bat emits a 40 khz chirp and receives back an echo at
3 answers
asked by
Chris
1,793 views
how would i calculate; a 50g sample of water at 100 degrees is poured into a 50g sample of water at 25 degrees. with a specific
3 answers
asked by
Noreen
1,773 views
A meter stick is held vertically with one end on the floor and is then allowed to fall. Find the speed of the other end when it
7 answers
asked by
teal
1,581 views
Lever, You Find A Smaller Rock, Use As A Fulcrum, You Place It A Meter From Boulder. What Works? """I choose A""""
A)move the
3 answers
asked by
Jenny
1,543 views
In the figure, a uniform ladder of weight 200 N and length 10 m leans against a perfectly smooth wall. A firefighter of weight
3 answers
asked by
Kate
1,543 views
two point charges are placed on the x axis as follows:
charge q1 +4.00nc is located at x = 0.200m, and charge q2 = +5.00nc is at
4 answers
asked by
yanis
1,474 views
1 - A student uses a magnet to place a picture on the refrigerator door. Which statement explains how the magnet is able to
5 answers
asked by
2trimm_markel
198 views
Energy Transfer and Temperature Quick Check
1 of 41 of 4 Items Question Use the table to answer the question. Sample Observation
7 answers
asked by
SIC
215 views
A student wants to know if the effect of gravity is the same on all objects. She follows these steps:
Drop a 5-gram ball, a
1 answer
asked anonymously
90 views
What is the equation for finding the gravitational force of an object
1 answer
asked anonymously
92 views
Which statement about gravitational attraction is correct?(1 point)
Responses All objects with mass experience gravitational
15 answers
asked by
Jojo
320 views
Looking at the graph, which statements are true? Check all that apply.%0D%0A%0D%0A(3 points)%0D%0AResponses%0D%0A%0D%0AWe can
4 answers
asked by
Latina baddie ✧
211 views
Select all that apply
Which statements can complete the statement:ln order to be able to use Coulomb's law to calculate the
1 answer
asked by
jaema
60 views
A bear spies some honey and takes off from rest, accelerating at a rate of 2.3 m/s2.v If the honey is 18 m away, how fast will
3 answers
asked by
Jacob
1,341 views
The switch in the circuit shown in the figure below is closed, and the lightbulb glows steadily. The inductor is a simple
1 answer
asked by
ricky
1,301 views
A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear
5 answers
asked by
Anonymous
1,286 views
A dolphin experiences a force of 320 N [up]
when it jumps out of the water. The acceleration of the dolphin is 2.6 m/s 2 [up].
4 answers
asked by
jake
1,339 views
the table below shows the values of the resistance, capcitive reactance and inductive reactance for five RCL circuits. in which
2 answers
asked by
seema
1,182 views
A uniform wooden plank 68cm long and weighing 38N rest horizontaly on two knife edges each 10cm from the ends of the plank. (1)
2 answers
asked by
Asare Joseph
1,153 views
55) A 200-g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300-g
3 answers
asked by
Y0gi
1,134 views
Find the angle of elevation of a gun which fire a shell with velocity 120m/s and hit a target on the same level but at 1300m
2 answers
asked by
Chuks
1,081 views
A fisherman's scale stretches 2.8 cm when a 3.7-kg fish hangs from it. (a) What is the spring constant? (b) What will be the
2 answers
asked by
Kate
1,074 views
A 35 micro coulomb point charge is placed 32 cm from an identical 35 micro coulomb charge. How much
work would be required to
2 answers
asked by
Maddy
1,040 views
Is there anyone that has done the physical science b virtual momentum lab that can help me with it?
3 answers
asked by
IWouldAlwaysOpenUpTheDoor
1,025 views
Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound
2 answers
asked by
Mike
1,011 views
A nickel and a sheet of paper, which have approximately the same mass are dropped at the same time from the same height. The
1 answer
asked anonymously
97 views
Which of the following scenarios best shows the transfer of kinetic energy?(1 point) Responses a baseball bat strikes a baseball
1 answer
asked anonymously
43 views
Use the equation to answer the prompt.
10 6C→10 5B+ 0+1e A student claims that the equation models beta-minus decay because the
1 answer
asked anonymously
56 views
How does energy drive the cycling of matter by thermal convection?
2 answers
asked by
Matt
940 views
Ammeter 1 reads 0.20 A.
a. What should ammeter 3 indicate? b. What should ammeter 4 indicate? Given: RA = 22-OHM RB = 13-OHM A1 =
2 answers
asked by
Priscilla
945 views
The drawings show three charges that have the same magnitude but different signs. In all cases the distance d between the
2 answers
asked by
Don
933 views
A skateboarder shoots off a ramp with a velocity of 6.8 m/s, directed at an angle of 54° above the horizontal. The end of the
2 answers
asked by
Kyle
894 views
A spring of natural length 3m is extended by 0.01m by a force of 4N. What will never it's length when the applied force is 12N?
1 answer
asked by
Prince
874 views
Two tugboats are towing a ship. Each exerts a horizontal force of 5 tons and the angle between their towropes is 90°. What net
3 answers
asked by
Chris
872 views
An archer fires an arrow, by applying an average force of 182 N across a distance of 38.0 cm on the bow. If the arrow has a mass
2 answers
asked by
Jackson
868 views
A density glass bottle contains 44.25g of a liquid at 0(c) and 42.02 at 50(c). Calculate the real cubic expansivity of the
4 answers
asked by
Psychokiller
854 views
Two objects (53.0 and 16.0 kg) are connected by a massless string that passes over a massless, frictionless pulley. The pulley
2 answers
asked by
chidera
848 views
If Tom kicks a 0.350 kg soccer ball with 0.90 N of force, what is the acceleration of the ball?
F= ma a 0.32 m/s2 b 0.003 m/s2 c
1 answer
asked anonymously
204 views
A glass bottle full of mercury has a mass of 50g. On being heated through 35 degree Celsius, 2.43g of mercury are expelled.
4 answers
asked by
ifeanyi
818 views
A motorist A leaves a small town and drives East at 28 ms-1 . A second motorist B is driving South towards the same town at 23
2 answers
asked by
jp
788 views
A bat flying at 5.5 m/s emits a chirp at 35 kHz. If this sound pulse is reflected by a wall, what is the frequency of the echo
1 answer
asked by
physics22
768 views
A uniform door (0.81 m wide and 2.1 m high) weighs 150 N and is hung on two hinges that fasten the long left side of the door to
2 answers
asked by
lina
761 views
A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100N. The tension force of each of
1 answer
asked by
Diane
656 views
A meter rule is balanced horizontally on a knife edge by a mass of 30kg long 20cm from one end . If the position of the knife
6 answers
asked by
Emmanuel
148 views
True/False (#1 only)
1)The horizontal motion of a horizontally launched projectile affects its vertical motion. False 2)The path
2 answers
asked by
Jon
762 views
1.71 kg of glass (ρ = 2.66 x 10^3 kg/m3) is shaped into a hollow spherical shell that just barely floats in water. What are the
3 answers
asked by
Jason
816 views
Hi! need help please thank you so much.
Question:(a) Calculate the absolute pressure at the bottom of a freshwater lake at a
2 answers
asked by
Chan
737 views
A revolutionary war cannon, with a mass of
2170 kg, fires a 18.1 kg ball horizontally. The cannonball has a speed of 146 m/s
1 answer
asked by
Cole
754 views
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