09/19/17

What is the force of gravity
A 15 kg ball is dropped from the roof. What is the force of gravity pulling it down
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09/19/17

I need help with this physics question. Please. Thanks in advance.
For a disk of radius R = 17 cm and Q = 5 ✕ 10-6 C, calculate the electric field 1 cm from the center of the disk using all three formulas below. Note: ε0 = 8.85e-12 C2/(N·M2). I got c to be... more
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09/19/17

linear kinetics
4. A basketball player with a body weight of 850 N exerts a force of -4500 N against the ground during takeoff (jumping upward). The basketball player’s average horizontal velocity was 10m/s during... more
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09/19/17

linear kinetics
A pitched ball with a mass of 150 g (0.15 kg) reaches a catcher’s glove traveling at a velocity of 28 m/s.     a. How much momentum does the ball have?    b. How much impulse is required to... more
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09/19/17

A load of 10kN is hauled by a winch of diameter 0.2m. Calculate the applied torque on the winch shaft.
Must be using (T=Fr)
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09/19/17

Finding degree of nth polynomial
Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the... more
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09/19/17

Find three consecutive even integers such that the sum of the least integer and the middle integer is 30 more than the greatest integer.
Find three consecutive even integers such that the sum of the least integer and the middle integer is 30 more than the greatest integer
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09/18/17

Planes going in different directions
A jet and a propeller plane leave the airport at the same time and travel in opposite directions. They fly at speeds of 600 mph and 350 mph, respectively. In how many hours will they be 2850 miles... more
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09/18/17

Fine the velocity
The Super High Performance Stomp Rocket™ claims that it can launch a rocket straight up into the air to a height of 400 feet. Find the total time of the rocket’s trajectory (ttotal), the initial... more
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09/18/17

How do I do this
A satellite in a circular orbit 1250 km above the earth makes one revolution every 110 minutes. Assuming that earth is a sphere of radius 6378 km, what is the angular speed in radians per hour and... more
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09/18/17

I want to express (1+i)^11 in algebric form by using the trig functions within the process...
For some reason 1+i = root 2 * e ^ pi / 4    which i dont understand how so I would like an explanation for this...
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09/17/17

physics question
A 12.6 V battery forces 3 Coulombs of charge through a load. How much energy does the load convert?
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09/17/17

physics question
A battery has an internal resistance of 0.30 Ω. The potential difference between its terminals is 1.48 V when a current of 0.20 A is being drawn from it. a) What is its e.m.f.? b) What is the... more
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09/17/17

physics question
A 1.0 kg bar of copper is drawn into 0.50 mm diameter wire. Calculate a) The length of the wire  b) The electrical resistance of the wire.  • Density of copper = 8.96 x 103 kg m-3 • Resistivity... more
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09/17/17

physics question
An electric radiator has a resistance of 50.0 Ω. a) What is the current when it is connected to a 200 V outlet?  b) What is the power of the radiator?  c) Calculate the quantity of electrical... more
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09/17/17

How to put 3x-y=-9
how to put 3x-y=-9 in slope intercept form
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09/17/17

rush of the empire
which european nation colonized india and australia
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09/16/17

IF YOU MULTIPLY AN OBJECT'S WEIGHT BY ITS HEIGHT WHAT VALUE DO YOU COMPUTE
IF YOU MULTIPLY AN OBJECT'S WEIGHT BY ITS HEIGHT WHAT VALUE DO YOU COMPUTE
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09/16/17

Could someone pleeaaase help me with this? It is driving me insane!
prove that the angle between vectors a and b is acute if vectors (4b-a) and (2a-b) are perpendicular...
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09/16/17

How long after the release of the first stone does the second stone hit the water?
A rock climber stands on top of a 56 m -high cliff overhanging a pool of water. He throws two stones vertically downward 1.0 s apart and observes that they cause a single splash. The initial speed... more
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09/16/17

What is the acceleration of the pike during this strike?
When striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.5 m/s in 0.15 s .What is the acceleration of the pike during this strike?
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09/15/17

The difference of four times a number and eight is twelve. Find the number.
How to do it
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09/15/17

The drift speed of an electron in a conductor is approximately what? Please help.
Options: 3.00*108 m/s 1.00*105 m/s 3.00*10-8 m/s 1.00*10-5 m/
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09/15/17

Physics question in description. Please help. Thanks in advance.
If a PHYS152 student wants to measure a current running through a 10 Ω resistor connected to a 30V voltage source, which multimeter input should he/she use for the measurement?Hint: Calculate the... more
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09/15/17

Is there a quicker way to do this kinematics problem?
A tired student jumps onto his bed. If he jumps 1.5 m and lands onto his bed that is 0.7 m, how long is he in the air for?   I combined the times for him going up and then going down. Is there a... more
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