Physics, 02.10.2021 17:10 nghtcll

An Olympian lifts a 1,375-kilogram set of weights a vertical distance of 2 meters in the weightlifting event. The force of gravity equals 9.8 m/s2. What is the potential energy of the weights? 4
B
1
x
x
Aa
AS
А
%
PE =
m
xh
X8
I

An Olympian lifts a 1,375-kilogram set of weights a vertical distance of 2 meters in the weightlift

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 10:00

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.

Answers: 2

Answer

Physics, 22.06.2019 14:10

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

Answers: 3

Answer

Physics, 22.06.2019 14:30

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?

Answers: 2

Answer

Physics, 22.06.2019 15:10

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?

Answers: 2

Answer

You know the right answer?

An Olympian lifts a 1,375-kilogram set of weights a vertical distance of 2 meters in the weightlifti...

Questions