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A ball is thrown vertically upward with a speed of 15 m/s.
A. what is its maximum height
B. when will it return
C. where will it be after 1 s ?
a block of mass 10kg on a rough horizontal surface is connected to all of mass M2=5kg by a light weight cord over a light weight friction less pully
A force of 120N at angle 53° of the horizontal applied to the block of mass 10kg the cofficent of kinetic friction b/n the surface and the block 0.3 then what is
The magnitude b/n the 2 blocks
The acceleration of the blocks
The tension b/n the 2 blocks
A lump sum of money is invested at a rate of 10% per annum compounded quarterly. How
long will it take for the investment to triple?
a student is only able to read the lecture notebook when it is held at 65.00cm from his eyes. what focal length and power must the lenses of his reading glasses have to bring his near point to the normal value
1.) A vector of 10 m/s is directed North-East. Approximately, what is its horizontal component?
a. 5 N
b. 880 N
c. 10 N
d. 7 N
2.) The components of a vector are the
a. Horizontal and vertical components
b. Horizontal and diagonal components
c. Vertical and diagonal components
d. Opposite directed components
3.) A relief good is dropped from a helicopter that is 300 m above the ground and rising at a rate of 13 m/s. How fast is the relief good going when it hits the ground?
a. 76.76 m/s
b. 77.8 m/s
c. 6.053 m/s
d. 55.76 m/s
4.) A dragster starts from rest and travels 1/4 mi in 6.70 s with constant acceleration. What is its speed in mi/h when it crosses the finish line?
a. 135
b. 269
c. 296
d. 188
Which is not Gibbs-Duhem equation?
A. n 1 dµ 1 + n 2 dµ 2 =0
B. dµ 1 / dµ 2 = -n 2 /n 1
C. dµ 1 / dµ 2 = n 2 /n 1
D. n 1 dµ 1 = - n 2 dµ 2
Elements from the same group shows similar chemical properties".
Using scientific knowledge and understanding state why elements from the same group shows similar chemical properties.
Two buildings are 20 m apart. The angle from the top of the shorter building to
the top of the taller building is 20°. The angle from the top of the shorter building
to the base of the taller building is 45°. What is the height of the taller building?
Make sure to include a diagram and concluding sentence.
Four 15-V cells are connected in a (a) series and (b) parallel. For each case, find the total voltage (VT). Suppose you divide the cells into two groups, each group consisting of two series cells. Then you connect these two groups parallel to each other. Also find the total voltage.
Elon Musk is watching his SpaceX shuttle launch. Calculate the angle of
elevation of the SpaceX shuttle, from his position located 8 km away, when the
shuttle reaches a height of 3500 m. Make sure to include a diagram and
concluding sentence.
#339914 on Dec 2023