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Physics
Page 51
Questions (147,593)
A ball is thrown vertically downward with a velocity of 12m/s How far has the ball fallen 1 s later?. 2s later?
5 answers
asked by
Anonymous
2,200 views
Which object will experience the strongest gravitational attraction to Earth?(1 point)
a notebook a desk a bowling ball a car
5 answers
asked by
father
1,375 views
At midnight, the temperature was -5°C. By noon, the temperature rose by 10°C. What was the temperature at noon?
5 answers
asked by
precy
1,743 views
The power, P, dissipated when a 6-volt battery is put across a resistance of R ohms is given by
P=36R. What is the rate of change
4 answers
asked by
lauren
1,933 views
At what temperature will the root-mean-square speed of oxygen molecules have the value of 640 m/s? 1 kilomole of oxygen has a
4 answers
asked by
christ
897 views
The total electrical resistance R of two resistors connected in parallel with resistances R1 and R2 is given by 1/R=1/R1+1/R2.
5 answers
asked by
Linda
2,220 views
A positively charged rod is held near, but not touching, a neutral metal sphere.
does the sphere experience a net force? if so,
4 answers
asked by
Anonymous
3,213 views
Two bulbs each of resistance 2.0 ohms are connected in parallel with a battery. Calculate the current flowing through any of the
5 answers
asked by
Vanessa
2,736 views
In a horizontal block-spring system,the block mass is m=0.5kg and the spring constant is
k =2N/m. At t1=0.1s the block velocity
5 answers
asked by
bling pls help
763 views
a firecracker is fired from the ground. The height of the firecracker at a given time is modeled by the function h(t)
4 answers
asked by
Rutba
2,943 views
three 10 ohm resistors are connected in parallel what is the equivalent resistance of the parallel combination?
4 answers
asked by
harold
3,619 views
What is the rate in meters per second of a jetliner this is travelling at a rate of 846 km/h
5 answers
asked by
Lilly
1,124 views
Matt is walking at 1.25 miles per hour to the east. Jaime is walking at 1.25 miles per hour to the south. Which statement
5 answers
asked by
Ieasha30
664 views
A cabinet weighing 100 N is placed on a floor. The amount of contact area between the cabinet and the floor is 0.5 m2.
How much
6 answers
asked by
kylie
3,509 views
I'm unsure of how to rearrange Balmer's equation to solve for n2. The equation is 1/lambda= R(1/2^2-1/n2^2)
4 answers
asked by
Kelsey
2,725 views
Brian made electro magnet in his science class he spread out several paper clips all made of the same material in the same size
4 answers
asked by
Amy
224 views
Two boys A and B are at two diametrically opposite points on a circle. At one
instant the two start running on the circle; A
4 answers
asked by
Collins
2,340 views
The speed of light is 3 „e 108 m/s (300,000,000 m/s). Red light has a wavelength of 7 „e 10-7 m (0.0000007 m). What is its
4 answers
asked by
wendell
4,095 views
Which object has kinetic energy?(1 point)
Responses battery in a remote-control car battery in a remote-control car soccer ball
5 answers
asked by
No one
259 views
After t seconds, a particle has covered a distance of S meters, where S=t^3-3t^2+9t+1
Determined the time when: (i) Velocity is
4 answers
asked by
Ande2
3,271 views
A steel strip, clamped at one end, vibrates with a frequency of 20 Hz and a amplitude of 5 mm at the free end, where a small
5 answers
asked by
Ali
1,186 views
Which orbital of the following has a principal quantum number of 3 and an angular momentum quantum number of 27?
A.3f B.3d C.4f
4 answers
asked by
Maryam
1,914 views
Calculate the force required to move a small pistons that has an area of 2m2,if the force of a large piston is 20n with an as
6 answers
asked by
Anonymous
2,374 views
A drawbridge is l = 110 feet long when stretched across a river. As shown in the figure below, the two sections of the bridge
4 answers
asked by
Tim
1,732 views
calculate the density of a solid which weighs 15N in air and 12N in water
6 answers
asked by
force
4,732 views
A trunk weighing 562 N is resting on a plane inclined at 30.0o from the horizontal. Find the components of the trunk's weight
4 answers
asked by
Anonymous
882 views
If a ball that is freely falling has attained a velocity of 19.6 m/s after two seconds, what is its velocity five seconds later?
7 answers
asked by
Anonymous
4,782 views
The maximum lift force on a bat is proportional to the square of its flying speed v. For the hoary bat (Lasiurus cinereus), the
4 answers
asked by
Taylor
2,340 views
An object is projected vertically upward from the top of a building with an initial velocity of 112 ft/sec. Its distance s(t) in
7 answers
asked by
June
1,773 views
The intensity of light decreases by 4% for each meter that it descends below the surface of the water. At what depth is the
5 answers
asked by
Brock
2,233 views
A square brass plate is 2 mm thick and has a mass of 1.05 kg. The density of the brass is 8.4 g/cm3. Calculate the length of the
6 answers
asked by
kudu
2,774 views
In scuba diving, a regulator is used so that the pressure of the air the diver breathes is close to that of the ambient water. A
4 answers
asked by
Emily
1,942 views
Consider a wheel (solid disk) of radius
0.748 m, mass 16 kg and moment of iner- tia 1/2 MR^2 . The wheel rolls without slipping
4 answers
asked by
Amber
968 views
Allyson and Adrian have decided to connect their ankles with a bungee cord; one end is tied to each person's ankle. The cord is
4 answers
asked by
Matt
605 views
a person in a wheelchair with a total mass of 100 kg is pushed from rest to a speed of 2.0m/s. if the effective coefficient of
4 answers
asked by
masi
1,309 views
Calculate the pressure at a point 5 m below the free water surface in a liquid that has a variable density given by equation o
4 answers
asked by
Urgent
2,223 views
A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees
3 answers
asked by
Melissa
2,106 views
The same type of engine is placed in two different airplanes. The first airplane is twice as heavy as the second airplane. Which
10 answers
asked by
lyssa
6,973 views
A bird, accelerating from rest at a constant rate, experiences a displacement of 28 m in 11 s. What is its acceleration?
A. 0.21
5 answers
asked by
Mark
15,808 views
If you swing an object on a string around in a circle, how can you feel the effects of the centripetal force?
a-In the mass of
7 answers
asked by
Gaia
3,877 views
a rock is dropped from a high brige.at the end of 3 seconds of free fall the speed of the rock is:[in centimeters per
5 answers
asked by
komal
5,468 views
A large metal ball is at rest, and a small rubber ball is moving at a high velocity. When they collide, the large metal ball
7 answers
asked by
kiley
4,787 views
A ball of mass 0.4 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below.
The velocity
5 answers
asked by
Luma
6,067 views
A car is traveling up a hill that is inclined at an angle θ above the horizontal. Determine the ratio of the magnitude of the
5 answers
asked by
Anonymous
14,452 views
Calculate The Value Of g At 1000m Above The Surface Of The Earth.The radius Of The Earth Is 6378.1km.
15 answers
asked by
Yonas
4,489 views
a student drops a ball from a window 3.5m above the sidewalk. the ball accelerates at 9.80m/s^2. How fast is it moving when it
5 answers
asked by
meghan
8,272 views
A concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35°. The u kinetic bn the slab and slope is 0.60.
7 answers
asked by
Heran
4,817 views
a car of mass 500kg is moving at 24m/s. A lion of mass 100kg drops on to the roof of the car from an overhanging branch. Show
7 answers
asked by
sepira
5,273 views
A) A 600 kg steel beam is supported by the two ropes shown in (Figure 1). Calculate the tension in the rope.
Express your answer
4 answers
asked by
PSS
11,421 views
The position of a toy locomotive moving on a
straight track along the x-axis is given by the equation x = t4 − 6 t2 + 9 t ,
4 answers
asked by
Anonymous
4,974 views
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